formattingand autowired constructors (#2557)

# Description
This pull request includes several changes aimed at improving the code
structure and removing redundant code. The most significant changes
involve reordering methods, removing unnecessary annotations, and
refactoring constructors to use dependency injection.
Autowired now comes via constructor (which also doesn't need autowired
annotation as its done by default for configuration)



## Checklist

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have performed a self-review of my own code
- [ ] I have attached images of the change if it is UI based
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] If my code has heavily changed functionality I have updated
relevant docs on [Stirling-PDFs doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
- [ ] My changes generate no new warnings
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

src/main/java/org/apache/pdfbox/examples/signature/CreateSignatureBase.java

@@ -97,14 +97,14 @@ public abstract class CreateSignatureBase implements SignatureInterface {
         this.privateKey = privateKey;
     }
 
-    public final void setCertificateChain(final Certificate[] certificateChain) {
-        this.certificateChain = certificateChain;
-    }
-
     public Certificate[] getCertificateChain() {
         return certificateChain;
     }
 
+    public final void setCertificateChain(final Certificate[] certificateChain) {
+        this.certificateChain = certificateChain;
+    }
+
     public void setTsaUrl(String tsaUrl) {
         this.tsaUrl = tsaUrl;
     }
@@ -152,6 +152,10 @@ public abstract class CreateSignatureBase implements SignatureInterface {
         }
     }
 
+    public boolean isExternalSigning() {
+        return externalSigning;
+    }
+
     /**
      * Set if external signing scenario should be used. If {@code false}, SignatureInterface would
      * be used for signing.
@@ -163,8 +167,4 @@ public abstract class CreateSignatureBase implements SignatureInterface {
     public void setExternalSigning(boolean externalSigning) {
         this.externalSigning = externalSigning;
     }
-
-    public boolean isExternalSigning() {
-        return externalSigning;
-    }
 }

src/main/java/org/apache/pdfbox/examples/signature/TSAClient.java

@@ -51,15 +51,13 @@ public class TSAClient {
 
     private static final DigestAlgorithmIdentifierFinder ALGORITHM_OID_FINDER =
             new DefaultDigestAlgorithmIdentifierFinder();
-
+    // SecureRandom.getInstanceStrong() would be better, but sometimes blocks on Linux
+    private static final Random RANDOM = new SecureRandom();
     private final URL url;
     private final String username;
     private final String password;
     private final MessageDigest digest;
 
-    // SecureRandom.getInstanceStrong() would be better, but sometimes blocks on Linux
-    private static final Random RANDOM = new SecureRandom();
-
     /**
      * @param url the URL of the TSA service
      * @param username user name of TSA

src/main/java/stirling/software/SPDF/EE/EEAppConfig.java

@@ -1,6 +1,5 @@
 package stirling.software.SPDF.EE;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.Ordered;
@@ -14,8 +13,15 @@ import stirling.software.SPDF.model.ApplicationProperties;
 @Slf4j
 public class EEAppConfig {
 
-    @Autowired ApplicationProperties applicationProperties;
-    @Autowired private LicenseKeyChecker licenseKeyChecker;
+    private final ApplicationProperties applicationProperties;
+
+    private final LicenseKeyChecker licenseKeyChecker;
+
+    public EEAppConfig(
+            ApplicationProperties applicationProperties, LicenseKeyChecker licenseKeyChecker) {
+        this.applicationProperties = applicationProperties;
+        this.licenseKeyChecker = licenseKeyChecker;
+    }
 
     @Bean(name = "runningEE")
     public boolean runningEnterpriseEdition() {

src/main/java/stirling/software/SPDF/LibreOfficeListener.java

@@ -17,18 +17,16 @@ public class LibreOfficeListener {
 
     private static final LibreOfficeListener INSTANCE = new LibreOfficeListener();
     private static final int LISTENER_PORT = 2002;
+    private ExecutorService executorService;
+    private long lastActivityTime;
+    private Process process;
+
+    private LibreOfficeListener() {}
 
     public static LibreOfficeListener getInstance() {
         return INSTANCE;
     }
 
-    private ExecutorService executorService;
-    private long lastActivityTime;
-
-    private Process process;
-
-    private LibreOfficeListener() {}
-
     private boolean isListenerRunning() {
         log.info("waiting for listener to start");
         try (Socket socket = new Socket()) {

src/main/java/stirling/software/SPDF/SPdfApplication.java

@@ -1,6 +1,5 @@
 package stirling.software.SPDF;
 
-import java.awt.*;
 import java.io.IOException;
 import java.net.ServerSocket;
 import java.nio.file.Files;
@@ -11,8 +10,6 @@ import java.util.HashMap;
 import java.util.Map;
 import java.util.Properties;
 
-import javax.swing.*;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.SpringApplication;
@@ -34,24 +31,22 @@ import stirling.software.SPDF.model.ApplicationProperties;
 @Slf4j
 public class SPdfApplication {
 
-    @Autowired private Environment env;
-    @Autowired ApplicationProperties applicationProperties;
-
     private static String baseUrlStatic;
     private static String serverPortStatic;
+    private final Environment env;
+    private final ApplicationProperties applicationProperties;
+    private final WebBrowser webBrowser;
 
     @Value("${baseUrl:http://localhost}")
     private String baseUrl;
 
-    @Value("${server.port:8080}")
-    public void setServerPortStatic(String port) {
-        if ("auto".equalsIgnoreCase(port)) {
-            // Use Spring Boot's automatic port assignment (server.port=0)
-            SPdfApplication.serverPortStatic =
-                    "0"; // This will let Spring Boot assign an available port
-        } else {
-            SPdfApplication.serverPortStatic = port;
-        }
+    public SPdfApplication(
+            Environment env,
+            ApplicationProperties applicationProperties,
+            @Autowired(required = false) WebBrowser webBrowser) {
+        this.env = env;
+        this.applicationProperties = applicationProperties;
+        this.webBrowser = webBrowser;
     }
 
     // Optionally keep this method if you want to provide a manual port-incrementation fallback.
@@ -72,29 +67,23 @@ public class SPdfApplication {
     }
 
     public static void main(String[] args) throws IOException, InterruptedException {
-
         SpringApplication app = new SpringApplication(SPdfApplication.class);
-
         Properties props = new Properties();
-
         if (Boolean.parseBoolean(System.getProperty("STIRLING_PDF_DESKTOP_UI", "false"))) {
             System.setProperty("java.awt.headless", "false");
             app.setHeadless(false);
             props.put("java.awt.headless", "false");
             props.put("spring.main.web-application-type", "servlet");
         }
-
         app.setAdditionalProfiles("default");
         app.addInitializers(new ConfigInitializer());
         Map<String, String> propertyFiles = new HashMap<>();
-
         // External config files
         if (Files.exists(Paths.get("configs/settings.yml"))) {
             propertyFiles.put("spring.config.additional-location", "file:configs/settings.yml");
         } else {
             log.warn("External configuration file 'configs/settings.yml' does not exist.");
         }
-
         if (Files.exists(Paths.get("configs/custom_settings.yml"))) {
             String existingLocation =
                     propertyFiles.getOrDefault("spring.config.additional-location", "");
@@ -108,21 +97,17 @@ public class SPdfApplication {
             log.warn("Custom configuration file 'configs/custom_settings.yml' does not exist.");
         }
         Properties finalProps = new Properties();
-
         if (!propertyFiles.isEmpty()) {
             finalProps.putAll(
                     Collections.singletonMap(
                             "spring.config.additional-location",
                             propertyFiles.get("spring.config.additional-location")));
         }
-
         if (!props.isEmpty()) {
             finalProps.putAll(props);
         }
         app.setDefaultProperties(finalProps);
-
         app.run(args);
-
         // Ensure directories are created
         try {
             Files.createDirectories(Path.of("customFiles/static/"));
@@ -130,7 +115,6 @@ public class SPdfApplication {
         } catch (Exception e) {
             log.error("Error creating directories: {}", e.getMessage());
         }
-
         printStartupLogs();
     }
 
@@ -140,8 +124,24 @@ public class SPdfApplication {
         log.info("Navigate to {}", url);
     }
 
-    @Autowired(required = false)
-    private WebBrowser webBrowser;
+    public static String getStaticBaseUrl() {
+        return baseUrlStatic;
+    }
+
+    public static String getStaticPort() {
+        return serverPortStatic;
+    }
+
+    @Value("${server.port:8080}")
+    public void setServerPortStatic(String port) {
+        if ("auto".equalsIgnoreCase(port)) {
+            // Use Spring Boot's automatic port assignment (server.port=0)
+            SPdfApplication.serverPortStatic = // This will let Spring Boot assign an available port
+                    "0";
+        } else {
+            SPdfApplication.serverPortStatic = port;
+        }
+    }
 
     @PostConstruct
     public void init() {
@@ -180,18 +180,10 @@ public class SPdfApplication {
         }
     }
 
-    public static String getStaticBaseUrl() {
-        return baseUrlStatic;
-    }
-
     public String getNonStaticBaseUrl() {
         return baseUrlStatic;
     }
 
-    public static String getStaticPort() {
-        return serverPortStatic;
-    }
-
     public String getNonStaticPort() {
         return serverPortStatic;
     }

src/main/java/stirling/software/SPDF/config/AppConfig.java

@@ -7,7 +7,6 @@ import java.nio.file.Paths;
 import java.util.Properties;
 import java.util.function.Predicate;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.context.annotation.Bean;
@@ -27,7 +26,11 @@ import stirling.software.SPDF.model.ApplicationProperties;
 @Slf4j
 public class AppConfig {
 
-    @Autowired ApplicationProperties applicationProperties;
+    private final ApplicationProperties applicationProperties;
+
+    public AppConfig(ApplicationProperties applicationProperties) {
+        this.applicationProperties = applicationProperties;
+    }
 
     @Bean
     @ConditionalOnProperty(
@@ -106,13 +109,11 @@ public class AppConfig {
         if (!Files.exists(dockerEnv)) {
             return true;
         }
-
         Path mountInfo = Paths.get("/proc/1/mountinfo");
         // this should always exist, if not some unknown usecase
         if (!Files.exists(mountInfo)) {
             return true;
         }
-
         try {
             return Files.lines(mountInfo).anyMatch(line -> line.contains(" /configs "));
         } catch (IOException e) {

src/main/java/stirling/software/SPDF/config/AppUpdateService.java

@@ -11,10 +11,16 @@ import stirling.software.SPDF.model.ApplicationProperties;
 @Service
 class AppUpdateService {
 
-    @Autowired private ApplicationProperties applicationProperties;
+    private final ApplicationProperties applicationProperties;
 
-    @Autowired(required = false)
-    ShowAdminInterface showAdmin;
+    private final ShowAdminInterface showAdmin;
+
+    public AppUpdateService(
+            ApplicationProperties applicationProperties,
+            @Autowired(required = false) ShowAdminInterface showAdmin) {
+        this.applicationProperties = applicationProperties;
+        this.showAdmin = showAdmin;
+    }
 
     @Bean(name = "shouldShow")
     @Scope("request")

src/main/java/stirling/software/SPDF/config/EndpointConfiguration.java

@@ -20,11 +20,10 @@ import stirling.software.SPDF.model.ApplicationProperties;
 @DependsOn({"bookAndHtmlFormatsInstalled"})
 public class EndpointConfiguration {
 
+    private static final String REMOVE_BLANKS = "remove-blanks";
+    private final ApplicationProperties applicationProperties;
     private Map<String, Boolean> endpointStatuses = new ConcurrentHashMap<>();
     private Map<String, Set<String>> endpointGroups = new ConcurrentHashMap<>();
-
-    private final ApplicationProperties applicationProperties;
-
     private boolean bookAndHtmlFormatsInstalled;
 
     @Autowired
@@ -287,6 +286,4 @@ public class EndpointConfiguration {
     public Set<String> getEndpointsForGroup(String group) {
         return endpointGroups.getOrDefault(group, new HashSet<>());
     }
-
-    private static final String REMOVE_BLANKS = "remove-blanks";
 }

src/main/java/stirling/software/SPDF/config/EndpointInterceptor.java

@@ -1,6 +1,5 @@
 package stirling.software.SPDF.config;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 import org.springframework.web.servlet.HandlerInterceptor;
 
@@ -10,7 +9,11 @@ import jakarta.servlet.http.HttpServletResponse;
 @Component
 public class EndpointInterceptor implements HandlerInterceptor {
 
-    @Autowired private EndpointConfiguration endpointConfiguration;
+    private final EndpointConfiguration endpointConfiguration;
+
+    public EndpointInterceptor(EndpointConfiguration endpointConfiguration) {
+        this.endpointConfiguration = endpointConfiguration;
+    }
 
     @Override
     public boolean preHandle(

src/main/java/stirling/software/SPDF/config/ExternalAppDepConfig.java

@@ -6,7 +6,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Configuration;
 
 import jakarta.annotation.PostConstruct;
@@ -15,7 +14,24 @@ import lombok.extern.slf4j.Slf4j;
 @Configuration
 @Slf4j
 public class ExternalAppDepConfig {
-    @Autowired private EndpointConfiguration endpointConfiguration;
+
+    private final EndpointConfiguration endpointConfiguration;
+    private final Map<String, List<String>> commandToGroupMapping =
+            new HashMap<>() {
+
+                {
+                    put("soffice", List.of("LibreOffice"));
+                    put("weasyprint", List.of("Weasyprint"));
+                    put("pdftohtml", List.of("Pdftohtml"));
+                    put("unoconv", List.of("Unoconv"));
+                    put("qpdf", List.of("qpdf"));
+                    put("tesseract", List.of("tesseract"));
+                }
+            };
+
+    public ExternalAppDepConfig(EndpointConfiguration endpointConfiguration) {
+        this.endpointConfiguration = endpointConfiguration;
+    }
 
     private boolean isCommandAvailable(String command) {
         try {
@@ -34,18 +50,6 @@ public class ExternalAppDepConfig {
         }
     }
 
-    private final Map<String, List<String>> commandToGroupMapping =
-            new HashMap<>() {
-                {
-                    put("soffice", List.of("LibreOffice"));
-                    put("weasyprint", List.of("Weasyprint"));
-                    put("pdftohtml", List.of("Pdftohtml"));
-                    put("unoconv", List.of("Unoconv"));
-                    put("qpdf", List.of("qpdf"));
-                    put("tesseract", List.of("tesseract"));
-                }
-            };
-
     private List<String> getAffectedFeatures(String group) {
         return endpointConfiguration.getEndpointsForGroup(group).stream()
                 .map(endpoint -> formatEndpointAsFeature(endpoint))
@@ -55,7 +59,6 @@ public class ExternalAppDepConfig {
     private String formatEndpointAsFeature(String endpoint) {
         // First replace common terms
         String feature = endpoint.replace("-", " ").replace("pdf", "PDF").replace("img", "image");
-
         // Split into words and capitalize each word
         return Arrays.stream(feature.split("\\s+"))
                 .map(word -> capitalizeWord(word))
@@ -76,7 +79,6 @@ public class ExternalAppDepConfig {
         boolean isAvailable = isCommandAvailable(command);
         if (!isAvailable) {
             List<String> affectedGroups = commandToGroupMapping.get(command);
-
             if (affectedGroups != null) {
                 for (String group : affectedGroups) {
                     List<String> affectedFeatures = getAffectedFeatures(group);
@@ -95,7 +97,6 @@ public class ExternalAppDepConfig {
 
     @PostConstruct
     public void checkDependencies() {
-
         // Check core dependencies
         checkDependencyAndDisableGroup("tesseract");
         checkDependencyAndDisableGroup("soffice");
@@ -103,13 +104,11 @@ public class ExternalAppDepConfig {
         checkDependencyAndDisableGroup("weasyprint");
         checkDependencyAndDisableGroup("pdftohtml");
         checkDependencyAndDisableGroup("unoconv");
-
         // Special handling for Python/OpenCV dependencies
         boolean pythonAvailable = isCommandAvailable("python3") || isCommandAvailable("python");
         if (!pythonAvailable) {
             List<String> pythonFeatures = getAffectedFeatures("Python");
             List<String> openCVFeatures = getAffectedFeatures("OpenCV");
-
             endpointConfiguration.disableGroup("Python");
             endpointConfiguration.disableGroup("OpenCV");
             log.warn(

src/main/java/stirling/software/SPDF/config/InitialSetup.java

@@ -4,7 +4,6 @@ import java.io.IOException;
 import java.util.Properties;
 import java.util.UUID;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.core.Ordered;
 import org.springframework.core.annotation.Order;
 import org.springframework.core.io.ClassPathResource;
@@ -23,25 +22,26 @@ import stirling.software.SPDF.utils.GeneralUtils;
 @Order(Ordered.HIGHEST_PRECEDENCE + 1)
 public class InitialSetup {
 
-    @Autowired private ApplicationProperties applicationProperties;
+    private final ApplicationProperties applicationProperties;
+
+    public InitialSetup(ApplicationProperties applicationProperties) {
+        this.applicationProperties = applicationProperties;
+    }
 
     @PostConstruct
     public void init() throws IOException {
         initUUIDKey();
-
         initSecretKey();
-
         initEnableCSRFSecurity();
-
         initLegalUrls();
-
         initSetAppVersion();
     }
 
     public void initUUIDKey() throws IOException {
         String uuid = applicationProperties.getAutomaticallyGenerated().getUUID();
         if (!GeneralUtils.isValidUUID(uuid)) {
-            uuid = UUID.randomUUID().toString(); // Generating a random UUID as the secret key
+            // Generating a random UUID as the secret key
+            uuid = UUID.randomUUID().toString();
             GeneralUtils.saveKeyToConfig("AutomaticallyGenerated.UUID", uuid);
             applicationProperties.getAutomaticallyGenerated().setUUID(uuid);
         }
@@ -50,7 +50,8 @@ public class InitialSetup {
     public void initSecretKey() throws IOException {
         String secretKey = applicationProperties.getAutomaticallyGenerated().getKey();
         if (!GeneralUtils.isValidUUID(secretKey)) {
-            secretKey = UUID.randomUUID().toString(); // Generating a random UUID as the secret key
+            // Generating a random UUID as the secret key
+            secretKey = UUID.randomUUID().toString();
             GeneralUtils.saveKeyToConfig("AutomaticallyGenerated.key", secretKey);
             applicationProperties.getAutomaticallyGenerated().setKey(secretKey);
         }
@@ -76,7 +77,6 @@ public class InitialSetup {
             GeneralUtils.saveKeyToConfig("legal.termsAndConditions", defaultTermsUrl, false);
             applicationProperties.getLegal().setTermsAndConditions(defaultTermsUrl);
         }
-
         // Initialize Privacy Policy
         String privacyUrl = applicationProperties.getLegal().getPrivacyPolicy();
         if (StringUtils.isEmpty(privacyUrl)) {
@@ -87,7 +87,6 @@ public class InitialSetup {
     }
 
     public void initSetAppVersion() throws IOException {
-
         String appVersion = "0.0.0";
         Resource resource = new ClassPathResource("version.properties");
         Properties props = new Properties();
@@ -95,7 +94,6 @@ public class InitialSetup {
             props.load(resource.getInputStream());
             appVersion = props.getProperty("version");
         } catch (Exception e) {
-
         }
         applicationProperties.getAutomaticallyGenerated().setAppVersion(appVersion);
         GeneralUtils.saveKeyToConfig("AutomaticallyGenerated.appVersion", appVersion, false);

src/main/java/stirling/software/SPDF/config/LocaleConfiguration.java

@@ -2,7 +2,6 @@ package stirling.software.SPDF.config;
 
 import java.util.Locale;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.web.servlet.LocaleResolver;
@@ -16,7 +15,11 @@ import stirling.software.SPDF.model.ApplicationProperties;
 @Configuration
 public class LocaleConfiguration implements WebMvcConfigurer {
 
-    @Autowired ApplicationProperties applicationProperties;
+    private final ApplicationProperties applicationProperties;
+
+    public LocaleConfiguration(ApplicationProperties applicationProperties) {
+        this.applicationProperties = applicationProperties;
+    }
 
     @Override
     public void addInterceptors(InterceptorRegistry registry) {
@@ -34,21 +37,17 @@ public class LocaleConfiguration implements WebMvcConfigurer {
     @Bean
     public LocaleResolver localeResolver() {
         SessionLocaleResolver slr = new SessionLocaleResolver();
-
         String appLocaleEnv = applicationProperties.getSystem().getDefaultLocale();
-        Locale defaultLocale =
-                Locale.UK; // Fallback to UK locale if environment variable is not set
-
+        Locale defaultLocale = // Fallback to UK locale if environment variable is not set
+                Locale.UK;
         if (appLocaleEnv != null && !appLocaleEnv.isEmpty()) {
             Locale tempLocale = Locale.forLanguageTag(appLocaleEnv);
             String tempLanguageTag = tempLocale.toLanguageTag();
-
             if (appLocaleEnv.equalsIgnoreCase(tempLanguageTag)) {
                 defaultLocale = tempLocale;
             } else {
                 tempLocale = Locale.forLanguageTag(appLocaleEnv.replace("_", "-"));
                 tempLanguageTag = tempLocale.toLanguageTag();
-
                 if (appLocaleEnv.equalsIgnoreCase(tempLanguageTag)) {
                     defaultLocale = tempLocale;
                 } else {
@@ -57,7 +56,6 @@ public class LocaleConfiguration implements WebMvcConfigurer {
                 }
             }
         }
-
         slr.setDefaultLocale(defaultLocale);
         return slr;
     }

src/main/java/stirling/software/SPDF/config/OpenApiConfig.java

@@ -1,6 +1,5 @@
 package stirling.software.SPDF.config;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
@@ -15,15 +14,19 @@ import stirling.software.SPDF.model.ApplicationProperties;
 @Configuration
 public class OpenApiConfig {
 
-    @Autowired ApplicationProperties applicationProperties;
+    private final ApplicationProperties applicationProperties;
+
+    public OpenApiConfig(ApplicationProperties applicationProperties) {
+        this.applicationProperties = applicationProperties;
+    }
 
     @Bean
     public OpenAPI customOpenAPI() {
         String version = getClass().getPackage().getImplementationVersion();
         if (version == null) {
-            version = "1.0.0"; // default version if all else fails
+            // default version if all else fails
+            version = "1.0.0";
         }
-
         SecurityScheme apiKeyScheme =
                 new SecurityScheme()
                         .type(SecurityScheme.Type.APIKEY)

src/main/java/stirling/software/SPDF/config/WebMvcConfig.java

@@ -1,6 +1,5 @@
 package stirling.software.SPDF.config;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
 import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
@@ -9,7 +8,11 @@ import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 @Configuration
 public class WebMvcConfig implements WebMvcConfigurer {
 
-    @Autowired private EndpointInterceptor endpointInterceptor;
+    private final EndpointInterceptor endpointInterceptor;
+
+    public WebMvcConfig(EndpointInterceptor endpointInterceptor) {
+        this.endpointInterceptor = endpointInterceptor;
+    }
 
     @Override
     public void addInterceptors(InterceptorRegistry registry) {

src/main/java/stirling/software/SPDF/config/security/AppUpdateAuthService.java

@@ -2,7 +2,6 @@ package stirling.software.SPDF.config.security;
 
 import java.util.Optional;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.security.core.Authentication;
 import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.stereotype.Service;
@@ -15,8 +14,15 @@ import stirling.software.SPDF.repository.UserRepository;
 @Service
 class AppUpdateAuthService implements ShowAdminInterface {
 
-    @Autowired private UserRepository userRepository;
-    @Autowired private ApplicationProperties applicationProperties;
+    private final UserRepository userRepository;
+
+    private final ApplicationProperties applicationProperties;
+
+    public AppUpdateAuthService(
+            UserRepository userRepository, ApplicationProperties applicationProperties) {
+        this.userRepository = userRepository;
+        this.applicationProperties = applicationProperties;
+    }
 
     @Override
     public boolean getShowUpdateOnlyAdmins() {
@@ -24,24 +30,18 @@ class AppUpdateAuthService implements ShowAdminInterface {
         if (!showUpdate) {
             return showUpdate;
         }
-
         boolean showUpdateOnlyAdmin = applicationProperties.getSystem().getShowUpdateOnlyAdmin();
-
         Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
-
         if (authentication == null || !authentication.isAuthenticated()) {
             return !showUpdateOnlyAdmin;
         }
-
         if (authentication.getName().equalsIgnoreCase("anonymousUser")) {
             return !showUpdateOnlyAdmin;
         }
-
         Optional<User> user = userRepository.findByUsername(authentication.getName());
         if (user.isPresent() && showUpdateOnlyAdmin) {
             return "ROLE_ADMIN".equals(user.get().getRolesAsString());
         }
-
         return showUpdate;
     }
 }

src/main/java/stirling/software/SPDF/config/security/CustomUserDetailsService.java

@@ -4,7 +4,6 @@ import java.util.Collection;
 import java.util.Set;
 import java.util.stream.Collectors;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.security.authentication.LockedException;
 import org.springframework.security.core.GrantedAuthority;
 import org.springframework.security.core.authority.SimpleGrantedAuthority;
@@ -20,9 +19,15 @@ import stirling.software.SPDF.repository.UserRepository;
 @Service
 public class CustomUserDetailsService implements UserDetailsService {
 
-    @Autowired private UserRepository userRepository;
+    private final UserRepository userRepository;
 
-    @Autowired private LoginAttemptService loginAttemptService;
+    private final LoginAttemptService loginAttemptService;
+
+    public CustomUserDetailsService(
+            UserRepository userRepository, LoginAttemptService loginAttemptService) {
+        this.userRepository = userRepository;
+        this.loginAttemptService = loginAttemptService;
+    }
 
     @Override
     public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
@@ -33,16 +38,13 @@ public class CustomUserDetailsService implements UserDetailsService {
                                 () ->
                                         new UsernameNotFoundException(
                                                 "No user found with username: " + username));
-
         if (loginAttemptService.isBlocked(username)) {
             throw new LockedException(
                     "Your account has been locked due to too many failed login attempts.");
         }
-
         if (!user.hasPassword()) {
             throw new IllegalArgumentException("Password must not be null");
         }
-
         return new org.springframework.security.core.userdetails.User(
                 user.getUsername(),
                 user.getPassword(),

src/main/java/stirling/software/SPDF/config/security/FirstLoginFilter.java

@@ -5,7 +5,6 @@ import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.Optional;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Lazy;
 import org.springframework.security.core.Authentication;
 import org.springframework.security.core.context.SecurityContextHolder;
@@ -25,7 +24,11 @@ import stirling.software.SPDF.utils.RequestUriUtils;
 @Component
 public class FirstLoginFilter extends OncePerRequestFilter {
 
-    @Autowired @Lazy private UserService userService;
+    @Lazy private final UserService userService;
+
+    public FirstLoginFilter(@Lazy UserService userService) {
+        this.userService = userService;
+    }
 
     @Override
     protected void doFilterInternal(
@@ -34,16 +37,13 @@ public class FirstLoginFilter extends OncePerRequestFilter {
         String method = request.getMethod();
         String requestURI = request.getRequestURI();
         String contextPath = request.getContextPath();
-
         // Check if the request is for static resources
         boolean isStaticResource = RequestUriUtils.isStaticResource(contextPath, requestURI);
-
         // If it's a static resource, just continue the filter chain and skip the logic below
         if (isStaticResource) {
             filterChain.doFilter(request, response);
             return;
         }
-
         Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
         if (authentication != null && authentication.isAuthenticated()) {
             Optional<User> user = userService.findByUsernameIgnoreCase(authentication.getName());
@@ -55,12 +55,10 @@ public class FirstLoginFilter extends OncePerRequestFilter {
                 return;
             }
         }
-
         if (log.isDebugEnabled()) {
             HttpSession session = request.getSession(true);
             SimpleDateFormat timeFormat = new SimpleDateFormat("HH:mm:ss");
             String creationTime = timeFormat.format(new Date(session.getCreationTime()));
-
             log.debug(
                     "Request Info - New: {}, creationTimeSession {}, ID:  {}, IP: {}, User-Agent: {}, Referer: {}, Request URL: {}",
                     session.isNew(),

src/main/java/stirling/software/SPDF/config/security/IPRateLimitingFilter.java

@@ -4,11 +4,7 @@ import java.io.IOException;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.atomic.AtomicInteger;
 
-import jakarta.servlet.Filter;
-import jakarta.servlet.FilterChain;
-import jakarta.servlet.ServletException;
-import jakarta.servlet.ServletRequest;
-import jakarta.servlet.ServletResponse;
+import jakarta.servlet.*;
 import jakarta.servlet.http.HttpServletRequest;
 import stirling.software.SPDF.utils.RequestUriUtils;
 

src/main/java/stirling/software/SPDF/config/security/InitialSecuritySetup.java

@@ -3,7 +3,6 @@ package stirling.software.SPDF.config.security;
 import java.io.IOException;
 import java.util.UUID;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
 import jakarta.annotation.PostConstruct;
@@ -16,11 +15,20 @@ import stirling.software.SPDF.model.Role;
 @Slf4j
 public class InitialSecuritySetup {
 
-    @Autowired private UserService userService;
+    private final UserService userService;
 
-    @Autowired private ApplicationProperties applicationProperties;
+    private final ApplicationProperties applicationProperties;
 
-    @Autowired private DatabaseBackupInterface databaseBackupHelper;
+    private final DatabaseBackupInterface databaseBackupHelper;
+
+    public InitialSecuritySetup(
+            UserService userService,
+            ApplicationProperties applicationProperties,
+            DatabaseBackupInterface databaseBackupHelper) {
+        this.userService = userService;
+        this.applicationProperties = applicationProperties;
+        this.databaseBackupHelper = databaseBackupHelper;
+    }
 
     @PostConstruct
     public void init() throws IllegalArgumentException, IOException {

src/main/java/stirling/software/SPDF/config/security/LoginAttemptService.java

@@ -3,7 +3,6 @@ package stirling.software.SPDF.config.security;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.TimeUnit;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import jakarta.annotation.PostConstruct;
@@ -15,13 +14,20 @@ import stirling.software.SPDF.model.AttemptCounter;
 @Slf4j
 public class LoginAttemptService {
 
-    @Autowired private ApplicationProperties applicationProperties;
+    private final ApplicationProperties applicationProperties;
 
     private int MAX_ATTEMPT;
+
     private long ATTEMPT_INCREMENT_TIME;
+
     private ConcurrentHashMap<String, AttemptCounter> attemptsCache;
+
     private boolean isBlockedEnabled = true;
 
+    public LoginAttemptService(ApplicationProperties applicationProperties) {
+        this.applicationProperties = applicationProperties;
+    }
+
     @PostConstruct
     public void init() {
         MAX_ATTEMPT = applicationProperties.getSecurity().getLoginAttemptCount();
@@ -46,7 +52,6 @@ public class LoginAttemptService {
         if (!isBlockedEnabled || key == null || key.trim().isEmpty()) {
             return;
         }
-
         AttemptCounter attemptCounter = attemptsCache.get(key.toLowerCase());
         if (attemptCounter == null) {
             attemptCounter = new AttemptCounter();
@@ -67,20 +72,18 @@ public class LoginAttemptService {
         if (attemptCounter == null) {
             return false;
         }
-
         return attemptCounter.getAttemptCount() >= MAX_ATTEMPT;
     }
 
     public int getRemainingAttempts(String key) {
         if (!isBlockedEnabled || key == null || key.trim().isEmpty()) {
-            return Integer.MAX_VALUE; // Arbitrarily high number if tracking is disabled
+            // Arbitrarily high number if tracking is disabled
+            return Integer.MAX_VALUE;
         }
-
         AttemptCounter attemptCounter = attemptsCache.get(key.toLowerCase());
         if (attemptCounter == null) {
             return MAX_ATTEMPT;
         }
-
         return MAX_ATTEMPT - attemptCounter.getAttemptCount();
     }
 }

src/main/java/stirling/software/SPDF/config/security/SecurityConfiguration.java

@@ -4,7 +4,6 @@ import java.security.cert.X509Certificate;
 import java.util.*;
 
 import org.opensaml.saml.saml2.core.AuthnRequest;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.context.annotation.Bean;
@@ -63,6 +62,7 @@ import stirling.software.SPDF.model.provider.GithubProvider;
 import stirling.software.SPDF.model.provider.GoogleProvider;
 import stirling.software.SPDF.model.provider.KeycloakProvider;
 import stirling.software.SPDF.repository.JPATokenRepositoryImpl;
+import stirling.software.SPDF.repository.PersistentLoginRepository;
 
 @Configuration
 @EnableWebSecurity
@@ -71,38 +71,64 @@ import stirling.software.SPDF.repository.JPATokenRepositoryImpl;
 @DependsOn("runningEE")
 public class SecurityConfiguration {
 
-    @Autowired private CustomUserDetailsService userDetailsService;
+    private final CustomUserDetailsService userDetailsService;
+    @Lazy private final UserService userService;
+
+    @Qualifier("loginEnabled")
+    private final boolean loginEnabledValue;
+
+    @Qualifier("runningEE")
+    private final boolean runningEE;
+
+    private final ApplicationProperties applicationProperties;
+    private final UserAuthenticationFilter userAuthenticationFilter;
+    private final LoginAttemptService loginAttemptService;
+    private final FirstLoginFilter firstLoginFilter;
+    private final SessionPersistentRegistry sessionRegistry;
+    private final PersistentLoginRepository persistentLoginRepository;
+
+    //    // Only Dev test
+    //    @Bean
+    //    public WebSecurityCustomizer webSecurityCustomizer() {
+    //        return (web) ->
+    //                web.ignoring()
+    //                        .requestMatchers(
+    //                                "/css/**", "/images/**", "/js/**", "/**.svg",
+    // "/pdfjs-legacy/**");
+    //    }
+    public SecurityConfiguration(
+            PersistentLoginRepository persistentLoginRepository,
+            CustomUserDetailsService userDetailsService,
+            @Lazy UserService userService,
+            @Qualifier("loginEnabled") boolean loginEnabledValue,
+            @Qualifier("runningEE") boolean runningEE,
+            ApplicationProperties applicationProperties,
+            UserAuthenticationFilter userAuthenticationFilter,
+            LoginAttemptService loginAttemptService,
+            FirstLoginFilter firstLoginFilter,
+            SessionPersistentRegistry sessionRegistry) {
+        this.userDetailsService = userDetailsService;
+        this.userService = userService;
+        this.loginEnabledValue = loginEnabledValue;
+        this.runningEE = runningEE;
+        this.applicationProperties = applicationProperties;
+        this.userAuthenticationFilter = userAuthenticationFilter;
+        this.loginAttemptService = loginAttemptService;
+        this.firstLoginFilter = firstLoginFilter;
+        this.sessionRegistry = sessionRegistry;
+        this.persistentLoginRepository = persistentLoginRepository;
+    }
 
     @Bean
     public PasswordEncoder passwordEncoder() {
         return new BCryptPasswordEncoder();
     }
 
-    @Autowired @Lazy private UserService userService;
-
-    @Autowired
-    @Qualifier("loginEnabled")
-    public boolean loginEnabledValue;
-
-    @Autowired
-    @Qualifier("runningEE")
-    public boolean runningEE;
-
-    @Autowired ApplicationProperties applicationProperties;
-
-    @Autowired private UserAuthenticationFilter userAuthenticationFilter;
-
-    @Autowired private LoginAttemptService loginAttemptService;
-
-    @Autowired private FirstLoginFilter firstLoginFilter;
-    @Autowired private SessionPersistentRegistry sessionRegistry;
-
     @Bean
     public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
         if (applicationProperties.getSecurity().getCsrfDisabled() || !loginEnabledValue) {
             http.csrf(csrf -> csrf.disable());
         }
-
         if (loginEnabledValue) {
             http.addFilterBefore(
                     userAuthenticationFilter, UsernamePasswordAuthenticationFilter.class);
@@ -117,13 +143,11 @@ public class SecurityConfiguration {
                                 csrf.ignoringRequestMatchers(
                                                 request -> {
                                                     String apiKey = request.getHeader("X-API-KEY");
-
                                                     // If there's no API key, don't ignore CSRF
                                                     // (return false)
                                                     if (apiKey == null || apiKey.trim().isEmpty()) {
                                                         return false;
                                                     }
-
                                                     // Validate API key using existing UserService
                                                     try {
                                                         Optional<User> user =
@@ -152,7 +176,6 @@ public class SecurityConfiguration {
                                     .maxSessionsPreventsLogin(false)
                                     .sessionRegistry(sessionRegistry)
                                     .expiredUrl("/login?logout=true"));
-
             http.authenticationProvider(daoAuthenticationProvider());
             http.requestCache(requestCache -> requestCache.requestCache(new NullRequestCache()));
             http.logout(
@@ -161,18 +184,23 @@ public class SecurityConfiguration {
                                     .logoutSuccessHandler(
                                             new CustomLogoutSuccessHandler(applicationProperties))
                                     .clearAuthentication(true)
-                                    .invalidateHttpSession(true) // Invalidate session
+                                    .invalidateHttpSession( // Invalidate session
+                                            true)
                                     .deleteCookies("JSESSIONID", "remember-me"));
             http.rememberMe(
-                    rememberMeConfigurer ->
-                            rememberMeConfigurer // Use the configurator directly
+                    rememberMeConfigurer -> // Use the configurator directly
+                    rememberMeConfigurer
                                     .tokenRepository(persistentTokenRepository())
-                                    .tokenValiditySeconds(14 * 24 * 60 * 60) // 14 days
-                                    .userDetailsService(
-                                            userDetailsService) // Your existing UserDetailsService
-                                    .useSecureCookie(true) // Enable secure cookie
-                                    .rememberMeParameter("remember-me") // Form parameter name
-                                    .rememberMeCookieName("remember-me") // Cookie name
+                                    .tokenValiditySeconds( // 14 days
+                                            14 * 24 * 60 * 60)
+                                    .userDetailsService( // Your existing UserDetailsService
+                                            userDetailsService)
+                                    .useSecureCookie( // Enable secure cookie
+                                            true)
+                                    .rememberMeParameter( // Form parameter name
+                                            "remember-me")
+                                    .rememberMeCookieName( // Cookie name
+                                            "remember-me")
                                     .alwaysRemember(false));
             http.authorizeHttpRequests(
                     authz ->
@@ -180,14 +208,12 @@ public class SecurityConfiguration {
                                             req -> {
                                                 String uri = req.getRequestURI();
                                                 String contextPath = req.getContextPath();
-
                                                 // Remove the context path from the URI
                                                 String trimmedUri =
                                                         uri.startsWith(contextPath)
                                                                 ? uri.substring(
                                                                         contextPath.length())
                                                                 : uri;
-
                                                 return trimmedUri.startsWith("/login")
                                                         || trimmedUri.startsWith("/oauth")
                                                         || trimmedUri.startsWith("/saml2")
@@ -205,7 +231,6 @@ public class SecurityConfiguration {
                                     .permitAll()
                                     .anyRequest()
                                     .authenticated());
-
             // Handle User/Password Logins
             if (applicationProperties.getSecurity().isUserPass()) {
                 http.formLogin(
@@ -221,27 +246,26 @@ public class SecurityConfiguration {
                                         .defaultSuccessUrl("/")
                                         .permitAll());
             }
-
             // Handle OAUTH2 Logins
             if (applicationProperties.getSecurity().isOauth2Activ()) {
-
                 http.oauth2Login(
                         oauth2 ->
                                 oauth2.loginPage("/oauth2")
+                                        .
                                         /*
                                         This Custom handler is used to check if the OAUTH2 user trying to log in, already exists in the database.
                                         If user exists, login proceeds as usual. If user does not exist, then it is autocreated but only if 'OAUTH2AutoCreateUser'
                                         is set as true, else login fails with an error message advising the same.
                                          */
-                                        .successHandler(
+                                        successHandler(
                                                 new CustomOAuth2AuthenticationSuccessHandler(
                                                         loginAttemptService,
                                                         applicationProperties,
                                                         userService))
                                         .failureHandler(
                                                 new CustomOAuth2AuthenticationFailureHandler())
-                                        // Add existing Authorities from the database
-                                        .userInfoEndpoint(
+                                        . // Add existing Authorities from the database
+                                        userInfoEndpoint(
                                                 userInfoEndpoint ->
                                                         userInfoEndpoint
                                                                 .oidcUserService(
@@ -253,15 +277,14 @@ public class SecurityConfiguration {
                                                                         userAuthoritiesMapper()))
                                         .permitAll());
             }
-
             // Handle SAML
-            if (applicationProperties.getSecurity().isSaml2Activ()) { // && runningEE
+            if (applicationProperties.getSecurity().isSaml2Activ()) {
+                // && runningEE
                 // Configure the authentication provider
                 OpenSaml4AuthenticationProvider authenticationProvider =
                         new OpenSaml4AuthenticationProvider();
                 authenticationProvider.setResponseAuthenticationConverter(
                         new CustomSaml2ResponseAuthenticationConverter(userService));
-
                 http.authenticationProvider(authenticationProvider)
                         .saml2Login(
                                 saml2 -> {
@@ -287,7 +310,6 @@ public class SecurityConfiguration {
                                     }
                                 });
             }
-
         } else {
             //            if (!applicationProperties.getSecurity().getCsrfDisabled()) {
             //                CookieCsrfTokenRepository cookieRepo =
@@ -302,7 +324,6 @@ public class SecurityConfiguration {
             //            }
             http.authorizeHttpRequests(authz -> authz.anyRequest().permitAll());
         }
-
         return http.build();
     }
 
@@ -313,17 +334,14 @@ public class SecurityConfiguration {
             matchIfMissing = false)
     public ClientRegistrationRepository clientRegistrationRepository() {
         List<ClientRegistration> registrations = new ArrayList<>();
-
         githubClientRegistration().ifPresent(registrations::add);
         oidcClientRegistration().ifPresent(registrations::add);
         googleClientRegistration().ifPresent(registrations::add);
         keycloakClientRegistration().ifPresent(registrations::add);
-
         if (registrations.isEmpty()) {
             log.error("At least one OAuth2 provider must be configured");
             System.exit(1);
         }
-
         return new InMemoryClientRegistrationRepository(registrations);
     }
 
@@ -366,7 +384,6 @@ public class SecurityConfiguration {
             return Optional.empty();
         }
         KeycloakProvider keycloak = client.getKeycloak();
-
         return keycloak != null && keycloak.isSettingsValid()
                 ? Optional.of(
                         ClientRegistrations.fromIssuerLocation(keycloak.getIssuer())
@@ -381,7 +398,6 @@ public class SecurityConfiguration {
     }
 
     private Optional<ClientRegistration> githubClientRegistration() {
-
         OAUTH2 oauth = applicationProperties.getSecurity().getOauth2();
         if (oauth == null || !oauth.getEnabled()) {
             return Optional.empty();
@@ -443,19 +459,15 @@ public class SecurityConfiguration {
             matchIfMissing = false)
     public RelyingPartyRegistrationRepository relyingPartyRegistrations() throws Exception {
         SAML2 samlConf = applicationProperties.getSecurity().getSaml2();
-
         X509Certificate idpCert = CertificateUtils.readCertificate(samlConf.getidpCert());
         Saml2X509Credential verificationCredential = Saml2X509Credential.verification(idpCert);
-
         Resource privateKeyResource = samlConf.getPrivateKey();
         Resource certificateResource = samlConf.getSpCert();
-
         Saml2X509Credential signingCredential =
                 new Saml2X509Credential(
                         CertificateUtils.readPrivateKey(privateKeyResource),
                         CertificateUtils.readCertificate(certificateResource),
                         Saml2X509CredentialType.SIGNING);
-
         RelyingPartyRegistration rp =
                 RelyingPartyRegistration.withRegistrationId(samlConf.getRegistrationId())
                         .signingX509Credentials(c -> c.add(signingCredential))
@@ -470,7 +482,6 @@ public class SecurityConfiguration {
                                                         Saml2MessageBinding.POST)
                                                 .wantAuthnRequestsSigned(true))
                         .build();
-
         return new InMemoryRelyingPartyRegistrationRepository(rp);
     }
 
@@ -486,10 +497,8 @@ public class SecurityConfiguration {
         resolver.setAuthnRequestCustomizer(
                 customizer -> {
                     log.debug("Customizing SAML Authentication request");
-
                     AuthnRequest authnRequest = customizer.getAuthnRequest();
                     log.debug("AuthnRequest ID: {}", authnRequest.getID());
-
                     if (authnRequest.getID() == null) {
                         authnRequest.setID("ARQ" + UUID.randomUUID().toString());
                     }
@@ -500,16 +509,13 @@ public class SecurityConfiguration {
                             authnRequest.getIssuer() != null
                                     ? authnRequest.getIssuer().getValue()
                                     : "null");
-
                     HttpServletRequest request = customizer.getRequest();
-
                     // Log HTTP request details
                     log.debug("HTTP Request Method: {}", request.getMethod());
                     log.debug("Request URI: {}", request.getRequestURI());
                     log.debug("Request URL: {}", request.getRequestURL().toString());
                     log.debug("Query String: {}", request.getQueryString());
                     log.debug("Remote Address: {}", request.getRemoteAddr());
-
                     // Log headers
                     Collections.list(request.getHeaderNames())
                             .forEach(
@@ -519,24 +525,20 @@ public class SecurityConfiguration {
                                                 headerName,
                                                 request.getHeader(headerName));
                                     });
-
                     // Log SAML specific parameters
                     log.debug("SAML Request Parameters:");
                     log.debug("SAMLRequest: {}", request.getParameter("SAMLRequest"));
                     log.debug("RelayState: {}", request.getParameter("RelayState"));
-
                     // Log session debugrmation if exists
                     if (request.getSession(false) != null) {
                         log.debug("Session ID: {}", request.getSession().getId());
                     }
-
                     // Log any assertions consumer service details if present
                     if (authnRequest.getAssertionConsumerServiceURL() != null) {
                         log.debug(
                                 "AssertionConsumerServiceURL: {}",
                                 authnRequest.getAssertionConsumerServiceURL());
                     }
-
                     // Log NameID policy if present
                     if (authnRequest.getNameIDPolicy() != null) {
                         log.debug(
@@ -566,12 +568,10 @@ public class SecurityConfiguration {
     GrantedAuthoritiesMapper userAuthoritiesMapper() {
         return (authorities) -> {
             Set<GrantedAuthority> mappedAuthorities = new HashSet<>();
-
             authorities.forEach(
                     authority -> {
                         // Add existing OAUTH2 Authorities
                         mappedAuthorities.add(new SimpleGrantedAuthority(authority.getAuthority()));
-
                         // Add Authorities from database for existing user, if user is present.
                         if (authority instanceof OAuth2UserAuthority oauth2Auth) {
                             String useAsUsername =
@@ -598,27 +598,18 @@ public class SecurityConfiguration {
 
     @Bean
     public IPRateLimitingFilter rateLimitingFilter() {
-        int maxRequestsPerIp = 1000000; // Example limit TODO add config level
+        // Example limit TODO add config level
+        int maxRequestsPerIp = 1000000;
         return new IPRateLimitingFilter(maxRequestsPerIp, maxRequestsPerIp);
     }
 
     @Bean
     public PersistentTokenRepository persistentTokenRepository() {
-        return new JPATokenRepositoryImpl();
+        return new JPATokenRepositoryImpl(persistentLoginRepository);
     }
 
     @Bean
     public boolean activSecurity() {
         return true;
     }
-
-    //    // Only Dev test
-    //    @Bean
-    //    public WebSecurityCustomizer webSecurityCustomizer() {
-    //        return (web) ->
-    //                web.ignoring()
-    //                        .requestMatchers(
-    //                                "/css/**", "/images/**", "/js/**", "/**.svg",
-    // "/pdfjs-legacy/**");
-    //    }
 }

src/main/java/stirling/software/SPDF/config/security/UserBasedRateLimitingFilter.java

@@ -5,14 +5,12 @@ import java.time.Duration;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.http.HttpStatus;
 import org.springframework.security.core.Authentication;
 import org.springframework.security.core.GrantedAuthority;
 import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.security.core.userdetails.UserDetails;
-import org.springframework.security.core.userdetails.UserDetailsService;
 import org.springframework.stereotype.Component;
 import org.springframework.web.filter.OncePerRequestFilter;
 
@@ -31,13 +29,15 @@ import stirling.software.SPDF.model.Role;
 public class UserBasedRateLimitingFilter extends OncePerRequestFilter {
 
     private final Map<String, Bucket> apiBuckets = new ConcurrentHashMap<>();
+
     private final Map<String, Bucket> webBuckets = new ConcurrentHashMap<>();
 
-    @Autowired private UserDetailsService userDetailsService;
-
-    @Autowired
     @Qualifier("rateLimit")
-    public boolean rateLimit;
+    private final boolean rateLimit;
+
+    public UserBasedRateLimitingFilter(@Qualifier("rateLimit") boolean rateLimit) {
+        this.rateLimit = rateLimit;
+    }
 
     @Override
     protected void doFilterInternal(
@@ -48,21 +48,18 @@ public class UserBasedRateLimitingFilter extends OncePerRequestFilter {
             filterChain.doFilter(request, response);
             return;
         }
-
         String method = request.getMethod();
         if (!"POST".equalsIgnoreCase(method)) {
             // If the request is not a POST, just pass it through without rate limiting
             filterChain.doFilter(request, response);
             return;
         }
-
         String identifier = null;
-
         // Check for API key in the request headers
         String apiKey = request.getHeader("X-API-KEY");
         if (apiKey != null && !apiKey.trim().isEmpty()) {
-            identifier =
-                    "API_KEY_" + apiKey; // Prefix to distinguish between API keys and usernames
+            identifier = // Prefix to distinguish between API keys and usernames
+                    "API_KEY_" + apiKey;
         } else {
             Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
             if (authentication != null && authentication.isAuthenticated()) {
@@ -70,15 +67,12 @@ public class UserBasedRateLimitingFilter extends OncePerRequestFilter {
                 identifier = userDetails.getUsername();
             }
         }
-
         // If neither API key nor an authenticated user is present, use IP address
         if (identifier == null) {
             identifier = request.getRemoteAddr();
         }
-
         Role userRole =
                 getRoleFromAuthentication(SecurityContextHolder.getContext().getAuthentication());
-
         if (request.getHeader("X-API-KEY") != null) {
             // It's an API call
             processRequest(
@@ -123,7 +117,6 @@ public class UserBasedRateLimitingFilter extends OncePerRequestFilter {
             throws IOException, ServletException {
         Bucket userBucket = buckets.computeIfAbsent(identifier, k -> createUserBucket(limitPerDay));
         ConsumptionProbe probe = userBucket.tryConsumeAndReturnRemaining(1);
-
         if (probe.isConsumed()) {
             response.setHeader(
                     "X-Rate-Limit-Remaining",

src/main/java/stirling/software/SPDF/config/security/UserService.java

@@ -4,7 +4,6 @@ import java.io.IOException;
 import java.util.*;
 import java.util.stream.Collectors;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.MessageSource;
 import org.springframework.context.i18n.LocaleContextHolder;
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
@@ -25,11 +24,7 @@ import stirling.software.SPDF.config.interfaces.DatabaseBackupInterface;
 import stirling.software.SPDF.config.security.saml2.CustomSaml2AuthenticatedPrincipal;
 import stirling.software.SPDF.config.security.session.SessionPersistentRegistry;
 import stirling.software.SPDF.controller.api.pipeline.UserServiceInterface;
-import stirling.software.SPDF.model.ApplicationProperties;
-import stirling.software.SPDF.model.AuthenticationType;
-import stirling.software.SPDF.model.Authority;
-import stirling.software.SPDF.model.Role;
-import stirling.software.SPDF.model.User;
+import stirling.software.SPDF.model.*;
 import stirling.software.SPDF.repository.AuthorityRepository;
 import stirling.software.SPDF.repository.UserRepository;
 
@@ -37,19 +32,36 @@ import stirling.software.SPDF.repository.UserRepository;
 @Slf4j
 public class UserService implements UserServiceInterface {
 
-    @Autowired private UserRepository userRepository;
+    private final UserRepository userRepository;
 
-    @Autowired private AuthorityRepository authorityRepository;
+    private final AuthorityRepository authorityRepository;
 
-    @Autowired private PasswordEncoder passwordEncoder;
+    private final PasswordEncoder passwordEncoder;
 
-    @Autowired private MessageSource messageSource;
+    private final MessageSource messageSource;
 
-    @Autowired private SessionPersistentRegistry sessionRegistry;
+    private final SessionPersistentRegistry sessionRegistry;
 
-    @Autowired DatabaseBackupInterface databaseBackupHelper;
+    private final DatabaseBackupInterface databaseBackupHelper;
 
-    @Autowired ApplicationProperties applicationProperties;
+    private final ApplicationProperties applicationProperties;
+
+    public UserService(
+            UserRepository userRepository,
+            AuthorityRepository authorityRepository,
+            PasswordEncoder passwordEncoder,
+            MessageSource messageSource,
+            SessionPersistentRegistry sessionRegistry,
+            DatabaseBackupInterface databaseBackupHelper,
+            ApplicationProperties applicationProperties) {
+        this.userRepository = userRepository;
+        this.authorityRepository = authorityRepository;
+        this.passwordEncoder = passwordEncoder;
+        this.messageSource = messageSource;
+        this.sessionRegistry = sessionRegistry;
+        this.databaseBackupHelper = databaseBackupHelper;
+        this.applicationProperties = applicationProperties;
+    }
 
     @Transactional
     public void migrateOauth2ToSSO() {
@@ -84,13 +96,11 @@ public class UserService implements UserServiceInterface {
         if (!user.isPresent()) {
             throw new UsernameNotFoundException("API key is not valid");
         }
-
         // Convert the user into an Authentication object
-        return new UsernamePasswordAuthenticationToken(
-                user, // principal (typically the user)
-                null, // credentials (we don't expose the password or API key here)
-                getAuthorities(user.get()) // user's authorities (roles/permissions)
-                );
+        return new UsernamePasswordAuthenticationToken( // principal (typically the user)
+                user, // credentials (we don't expose the password or API key here)
+                null, // user's authorities (roles/permissions)
+                getAuthorities(user.get()));
     }
 
     private Collection<? extends GrantedAuthority> getAuthorities(User user) {
@@ -104,7 +114,8 @@ public class UserService implements UserServiceInterface {
         String apiKey;
         do {
             apiKey = UUID.randomUUID().toString();
-        } while (userRepository.findByApiKey(apiKey).isPresent()); // Ensure uniqueness
+        } while ( // Ensure uniqueness
+        userRepository.findByApiKey(apiKey).isPresent());
         return apiKey;
     }
 
@@ -118,7 +129,8 @@ public class UserService implements UserServiceInterface {
     }
 
     public User refreshApiKeyForUser(String username) {
-        return addApiKeyToUser(username); // reuse the add API key method for refreshing
+        // reuse the add API key method for refreshing
+        return addApiKeyToUser(username);
     }
 
     public String getApiKeyForUser(String username) {
@@ -138,11 +150,11 @@ public class UserService implements UserServiceInterface {
 
     public Optional<User> loadUserByApiKey(String apiKey) {
         Optional<User> user = userRepository.findByApiKey(apiKey);
-
         if (user.isPresent()) {
             return user;
         }
-        return null; // or throw an exception
+        // or throw an exception
+        return null;
     }
 
     public boolean validateApiKeyForUser(String username, String apiKey) {
@@ -240,14 +252,12 @@ public class UserService implements UserServiceInterface {
         if (userOpt.isPresent()) {
             User user = userOpt.get();
             Map<String, String> settingsMap = user.getSettings();
-
             if (settingsMap == null) {
                 settingsMap = new HashMap<>();
             }
             settingsMap.clear();
             settingsMap.putAll(updates);
             user.setSettings(settingsMap);
-
             userRepository.save(user);
             databaseBackupHelper.exportDatabase();
         }
@@ -316,12 +326,9 @@ public class UserService implements UserServiceInterface {
         boolean isValidEmail =
                 username.matches(
                         "^(?=.{1,64}@)[A-Za-z0-9]+(\\.[A-Za-z0-9_+.-]+)*@[^-][A-Za-z0-9-]+(\\.[A-Za-z0-9-]+)*(\\.[A-Za-z]{2,})$");
-
         List<String> notAllowedUserList = new ArrayList<>();
         notAllowedUserList.add("ALL_USERS".toLowerCase());
-
         boolean notAllowedUser = notAllowedUserList.contains(username.toLowerCase());
-
         return (isValidSimpleUsername || isValidEmail) && !notAllowedUser;
     }
 
@@ -374,7 +381,6 @@ public class UserService implements UserServiceInterface {
 
     public String getCurrentUsername() {
         Object principal = SecurityContextHolder.getContext().getAuthentication().getPrincipal();
-
         if (principal instanceof UserDetails) {
             return ((UserDetails) principal).getUsername();
         } else if (principal instanceof OAuth2User) {
@@ -397,7 +403,6 @@ public class UserService implements UserServiceInterface {
         }
         String username = "CUSTOM_API_USER";
         Optional<User> existingUser = findByUsernameIgnoreCase(username);
-
         if (!existingUser.isPresent()) {
             // Create new user with API role
             User user = new User();

src/main/java/stirling/software/SPDF/config/security/database/DatabaseBackupHelper.java

@@ -6,12 +6,7 @@ import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.nio.file.attribute.BasicFileAttributes;
-import java.sql.Connection;
-import java.sql.DriverManager;
-import java.sql.PreparedStatement;
-import java.sql.ResultSet;
-import java.sql.SQLException;
-import java.sql.Statement;
+import java.sql.*;
 import java.time.LocalDateTime;
 import java.time.ZoneId;
 import java.time.format.DateTimeFormatter;

src/main/java/stirling/software/SPDF/config/security/database/ScheduledTasks.java

@@ -2,14 +2,17 @@ package stirling.software.SPDF.config.security.database;
 
 import java.io.IOException;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Component;
 
 @Component
 public class ScheduledTasks {
 
-    @Autowired private DatabaseBackupHelper databaseBackupService;
+    private final DatabaseBackupHelper databaseBackupService;
+
+    public ScheduledTasks(DatabaseBackupHelper databaseBackupService) {
+        this.databaseBackupService = databaseBackupService;
+    }
 
     @Scheduled(cron = "0 0 0 * * ?")
     public void performBackup() throws IOException {

src/main/java/stirling/software/SPDF/config/security/session/SessionPersistentRegistry.java

@@ -1,12 +1,7 @@
 package stirling.software.SPDF.config.security.session;
 
 import java.time.Duration;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.Date;
-import java.util.List;
-import java.util.Optional;
+import java.util.*;
 
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.security.core.session.SessionInformation;

src/main/java/stirling/software/SPDF/config/security/session/SessionScheduled.java

@@ -5,19 +5,22 @@ import java.time.temporal.ChronoUnit;
 import java.util.Date;
 import java.util.List;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.security.core.session.SessionInformation;
 import org.springframework.stereotype.Component;
 
 @Component
 public class SessionScheduled {
-    @Autowired private SessionPersistentRegistry sessionPersistentRegistry;
+
+    private final SessionPersistentRegistry sessionPersistentRegistry;
+
+    public SessionScheduled(SessionPersistentRegistry sessionPersistentRegistry) {
+        this.sessionPersistentRegistry = sessionPersistentRegistry;
+    }
 
     @Scheduled(cron = "0 0/5 * * * ?")
     public void expireSessions() {
         Instant now = Instant.now();
-
         for (Object principal : sessionPersistentRegistry.getAllPrincipals()) {
             List<SessionInformation> sessionInformations =
                     sessionPersistentRegistry.getAllSessions(principal, false);

src/main/java/stirling/software/SPDF/controller/api/AdditionalLanguageJsController.java

@@ -4,7 +4,6 @@ import java.io.IOException;
 import java.io.PrintWriter;
 import java.util.List;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
@@ -18,35 +17,35 @@ import stirling.software.SPDF.service.LanguageService;
 @RequestMapping("/js")
 public class AdditionalLanguageJsController {
 
-    @Autowired private LanguageService languageService;
+    private final LanguageService languageService;
+
+    public AdditionalLanguageJsController(LanguageService languageService) {
+        this.languageService = languageService;
+    }
 
     @Hidden
     @GetMapping(value = "/additionalLanguageCode.js", produces = "application/javascript")
     public void generateAdditionalLanguageJs(HttpServletResponse response) throws IOException {
         List<String> supportedLanguages = languageService.getSupportedLanguages();
-
         response.setContentType("application/javascript");
         PrintWriter writer = response.getWriter();
-
         // Erstelle das JavaScript dynamisch
         writer.println("const supportedLanguages = " + toJsonArray(supportedLanguages) + ";");
-
         // Generiere die `getDetailedLanguageCode`-Funktion
         writer.println(
                 """
-                function getDetailedLanguageCode() {
-                    const userLanguages = navigator.languages ? navigator.languages : [navigator.language];
-                    for (let lang of userLanguages) {
-                        let matchedLang = supportedLanguages.find(supportedLang => supportedLang.startsWith(lang.replace('-', '_')));
-                        if (matchedLang) {
-                            return matchedLang;
+                        function getDetailedLanguageCode() {
+                            const userLanguages = navigator.languages ? navigator.languages : [navigator.language];
+                            for (let lang of userLanguages) {
+                                let matchedLang = supportedLanguages.find(supportedLang => supportedLang.startsWith(lang.replace('-', '_')));
+                                if (matchedLang) {
+                                    return matchedLang;
+                                }
+                            }
+                            // Fallback
+                            return "en_GB";
                         }
-                    }
-                    // Fallback
-                    return "en_GB";
-                }
-                """);
-
+                        """);
         writer.flush();
     }
 

src/main/java/stirling/software/SPDF/controller/api/DatabaseController.java

@@ -8,18 +8,13 @@ import java.nio.file.Path;
 import java.nio.file.StandardCopyOption;
 
 import org.eclipse.jetty.http.HttpStatus;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.core.io.InputStreamResource;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.stereotype.Controller;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 import org.springframework.web.servlet.mvc.support.RedirectAttributes;
 
@@ -38,7 +33,11 @@ import stirling.software.SPDF.config.security.database.DatabaseBackupHelper;
 @Tag(name = "Database", description = "Database APIs for backup, import, and management")
 public class DatabaseController {
 
-    @Autowired DatabaseBackupHelper databaseBackupHelper;
+    private final DatabaseBackupHelper databaseBackupHelper;
+
+    public DatabaseController(DatabaseBackupHelper databaseBackupHelper) {
+        this.databaseBackupHelper = databaseBackupHelper;
+    }
 
     @Operation(
             summary = "Import a database backup file",
@@ -50,13 +49,11 @@ public class DatabaseController {
                     MultipartFile file,
             RedirectAttributes redirectAttributes)
             throws IOException {
-
         if (file == null || file.isEmpty()) {
             redirectAttributes.addAttribute("error", "fileNullOrEmpty");
             return "redirect:/database";
         }
         log.info("Received file: {}", file.getOriginalFilename());
-
         Path tempTemplatePath = Files.createTempFile("backup_", ".sql");
         try (InputStream in = file.getInputStream()) {
             Files.copy(in, tempTemplatePath, StandardCopyOption.REPLACE_EXISTING);
@@ -82,11 +79,9 @@ public class DatabaseController {
             @Parameter(description = "Name of the file to import", required = true) @PathVariable
                     String fileName)
             throws IOException {
-
         if (fileName == null || fileName.isEmpty()) {
             return "redirect:/database?error=fileNullOrEmpty";
         }
-
         // Check if the file exists in the backup list
         boolean fileExists =
                 databaseBackupHelper.getBackupList().stream()
@@ -96,7 +91,6 @@ public class DatabaseController {
             return "redirect:/database?error=fileNotFound";
         }
         log.info("Received file: {}", fileName);
-
         if (databaseBackupHelper.importDatabaseFromUI(fileName)) {
             log.info("File {} imported to database", fileName);
             return "redirect:/database?infoMessage=importIntoDatabaseSuccessed";
@@ -112,7 +106,6 @@ public class DatabaseController {
     public String deleteFile(
             @Parameter(description = "Name of the file to delete", required = true) @PathVariable
                     String fileName) {
-
         if (fileName == null || fileName.isEmpty()) {
             throw new IllegalArgumentException("File must not be null or empty");
         }

src/main/java/stirling/software/SPDF/controller/api/MultiPageLayoutController.java

@@ -1,6 +1,6 @@
 package stirling.software.SPDF.controller.api;
 
-import java.awt.Color;
+import java.awt.*;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 

src/main/java/stirling/software/SPDF/controller/api/PdfImageRemovalController.java

@@ -6,7 +6,10 @@ import java.io.IOException;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.*;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
 
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;

src/main/java/stirling/software/SPDF/controller/api/SettingsController.java

@@ -2,11 +2,12 @@ package stirling.software.SPDF.controller.api;
 
 import java.io.IOException;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Controller;
-import org.springframework.web.bind.annotation.*;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
 
 import io.swagger.v3.oas.annotations.Hidden;
 import io.swagger.v3.oas.annotations.tags.Tag;
@@ -20,7 +21,11 @@ import stirling.software.SPDF.utils.GeneralUtils;
 @Hidden
 public class SettingsController {
 
-    @Autowired ApplicationProperties applicationProperties;
+    private final ApplicationProperties applicationProperties;
+
+    public SettingsController(ApplicationProperties applicationProperties) {
+        this.applicationProperties = applicationProperties;
+    }
 
     @PostMapping("/update-enable-analytics")
     @Hidden
@@ -32,7 +37,6 @@ public class SettingsController {
         }
         GeneralUtils.saveKeyToConfig("system.enableAnalytics", String.valueOf(enabled), false);
         applicationProperties.getSystem().setEnableAnalytics(String.valueOf(enabled));
-
         return ResponseEntity.ok("Updated");
     }
 }

src/main/java/stirling/software/SPDF/controller/api/SplitPdfByChaptersController.java

@@ -49,6 +49,74 @@ public class SplitPdfByChaptersController {
         this.pdfMetadataService = pdfMetadataService;
     }
 
+    private static List<Bookmark> extractOutlineItems(
+            PDDocument sourceDocument,
+            PDOutlineItem current,
+            List<Bookmark> bookmarks,
+            PDOutlineItem nextParent,
+            int level,
+            int maxLevel)
+            throws Exception {
+
+        while (current != null) {
+
+            String currentTitle = current.getTitle().replace("/", "");
+            int firstPage =
+                    sourceDocument.getPages().indexOf(current.findDestinationPage(sourceDocument));
+            PDOutlineItem child = current.getFirstChild();
+            PDOutlineItem nextSibling = current.getNextSibling();
+            int endPage;
+            if (child != null && level < maxLevel) {
+                endPage =
+                        sourceDocument
+                                .getPages()
+                                .indexOf(child.findDestinationPage(sourceDocument));
+            } else if (nextSibling != null) {
+                endPage =
+                        sourceDocument
+                                .getPages()
+                                .indexOf(nextSibling.findDestinationPage(sourceDocument));
+            } else if (nextParent != null) {
+
+                endPage =
+                        sourceDocument
+                                .getPages()
+                                .indexOf(nextParent.findDestinationPage(sourceDocument));
+            } else {
+                endPage = -2;
+                /*
+                happens when we have something like this:
+                Outline Item 2
+                    Outline Item 2.1
+                        Outline Item 2.1.1
+                    Outline Item 2.2
+                        Outline 2.2.1
+                        Outline 2.2.2 <--- this item neither has an immediate next parent nor an immediate next sibling
+                Outline Item 3
+                 */
+            }
+            if (!bookmarks.isEmpty()
+                    && bookmarks.get(bookmarks.size() - 1).getEndPage() == -2
+                    && firstPage
+                            >= bookmarks
+                                    .get(bookmarks.size() - 1)
+                                    .getStartPage()) { // for handling the above-mentioned case
+                Bookmark previousBookmark = bookmarks.get(bookmarks.size() - 1);
+                previousBookmark.setEndPage(firstPage);
+            }
+            bookmarks.add(new Bookmark(currentTitle, firstPage, endPage));
+
+            // Recursively process children
+            if (child != null && level < maxLevel) {
+                extractOutlineItems(
+                        sourceDocument, child, bookmarks, nextSibling, level + 1, maxLevel);
+            }
+
+            current = nextSibling;
+        }
+        return bookmarks;
+    }
+
     @PostMapping(value = "/split-pdf-by-chapters", consumes = "multipart/form-data")
     @Operation(
             summary = "Split PDFs by Chapters",
@@ -163,74 +231,6 @@ public class SplitPdfByChaptersController {
         return bookmarks;
     }
 
-    private static List<Bookmark> extractOutlineItems(
-            PDDocument sourceDocument,
-            PDOutlineItem current,
-            List<Bookmark> bookmarks,
-            PDOutlineItem nextParent,
-            int level,
-            int maxLevel)
-            throws Exception {
-
-        while (current != null) {
-
-            String currentTitle = current.getTitle().replace("/", "");
-            int firstPage =
-                    sourceDocument.getPages().indexOf(current.findDestinationPage(sourceDocument));
-            PDOutlineItem child = current.getFirstChild();
-            PDOutlineItem nextSibling = current.getNextSibling();
-            int endPage;
-            if (child != null && level < maxLevel) {
-                endPage =
-                        sourceDocument
-                                .getPages()
-                                .indexOf(child.findDestinationPage(sourceDocument));
-            } else if (nextSibling != null) {
-                endPage =
-                        sourceDocument
-                                .getPages()
-                                .indexOf(nextSibling.findDestinationPage(sourceDocument));
-            } else if (nextParent != null) {
-
-                endPage =
-                        sourceDocument
-                                .getPages()
-                                .indexOf(nextParent.findDestinationPage(sourceDocument));
-            } else {
-                endPage = -2;
-                /*
-                happens when we have something like this:
-                Outline Item 2
-                    Outline Item 2.1
-                        Outline Item 2.1.1
-                    Outline Item 2.2
-                        Outline 2.2.1
-                        Outline 2.2.2 <--- this item neither has an immediate next parent nor an immediate next sibling
-                Outline Item 3
-                 */
-            }
-            if (!bookmarks.isEmpty()
-                    && bookmarks.get(bookmarks.size() - 1).getEndPage() == -2
-                    && firstPage
-                            >= bookmarks
-                                    .get(bookmarks.size() - 1)
-                                    .getStartPage()) { // for handling the above-mentioned case
-                Bookmark previousBookmark = bookmarks.get(bookmarks.size() - 1);
-                previousBookmark.setEndPage(firstPage);
-            }
-            bookmarks.add(new Bookmark(currentTitle, firstPage, endPage));
-
-            // Recursively process children
-            if (child != null && level < maxLevel) {
-                extractOutlineItems(
-                        sourceDocument, child, bookmarks, nextSibling, level + 1, maxLevel);
-            }
-
-            current = nextSibling;
-        }
-        return bookmarks;
-    }
-
     private Path createZipFile(
             List<Bookmark> bookmarks, List<ByteArrayOutputStream> splitDocumentsBoas)
             throws Exception {

src/main/java/stirling/software/SPDF/controller/api/UserController.java

@@ -7,7 +7,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.Optional;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.access.prepost.PreAuthorize;
@@ -18,11 +17,7 @@ import org.springframework.security.oauth2.core.user.OAuth2User;
 import org.springframework.security.web.authentication.logout.SecurityContextLogoutHandler;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
-import org.springframework.web.bind.annotation.ModelAttribute;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.*;
 import org.springframework.web.servlet.mvc.support.RedirectAttributes;
 import org.springframework.web.servlet.view.RedirectView;
 
@@ -45,9 +40,14 @@ import stirling.software.SPDF.model.api.user.UsernameAndPass;
 @Slf4j
 public class UserController {
 
-    @Autowired private UserService userService;
+    private static final String LOGIN_MESSAGETYPE_CREDSUPDATED = "/login?messageType=credsUpdated";
+    private final UserService userService;
+    private final SessionPersistentRegistry sessionRegistry;
 
-    @Autowired SessionPersistentRegistry sessionRegistry;
+    public UserController(UserService userService, SessionPersistentRegistry sessionRegistry) {
+        this.userService = userService;
+        this.sessionRegistry = sessionRegistry;
+    }
 
     @PreAuthorize("!hasAuthority('ROLE_DEMO_USER')")
     @PostMapping("/register")
@@ -75,36 +75,27 @@ public class UserController {
             HttpServletResponse response,
             RedirectAttributes redirectAttributes)
             throws IOException {
-
         if (!userService.isUsernameValid(newUsername)) {
             return new RedirectView("/account?messageType=invalidUsername", true);
         }
-
         if (principal == null) {
             return new RedirectView("/account?messageType=notAuthenticated", true);
         }
-
         // The username MUST be unique when renaming
         Optional<User> userOpt = userService.findByUsername(principal.getName());
-
         if (userOpt == null || userOpt.isEmpty()) {
             return new RedirectView("/account?messageType=userNotFound", true);
         }
-
         User user = userOpt.get();
-
         if (user.getUsername().equals(newUsername)) {
             return new RedirectView("/account?messageType=usernameExists", true);
         }
-
         if (!userService.isPasswordCorrect(user, currentPassword)) {
             return new RedirectView("/account?messageType=incorrectPassword", true);
         }
-
         if (!user.getUsername().equals(newUsername) && userService.usernameExists(newUsername)) {
             return new RedirectView("/account?messageType=usernameExists", true);
         }
-
         if (newUsername != null && newUsername.length() > 0) {
             try {
                 userService.changeUsername(user, newUsername);
@@ -112,10 +103,8 @@ public class UserController {
                 return new RedirectView("/account?messageType=invalidUsername", true);
             }
         }
-
         // Logout using Spring's utility
         new SecurityContextLogoutHandler().logout(request, response, null);
-
         return new RedirectView(LOGIN_MESSAGETYPE_CREDSUPDATED, true);
     }
 
@@ -132,24 +121,18 @@ public class UserController {
         if (principal == null) {
             return new RedirectView("/change-creds?messageType=notAuthenticated", true);
         }
-
         Optional<User> userOpt = userService.findByUsernameIgnoreCase(principal.getName());
-
         if (userOpt == null || userOpt.isEmpty()) {
             return new RedirectView("/change-creds?messageType=userNotFound", true);
         }
-
         User user = userOpt.get();
-
         if (!userService.isPasswordCorrect(user, currentPassword)) {
             return new RedirectView("/change-creds?messageType=incorrectPassword", true);
         }
-
         userService.changePassword(user, newPassword);
         userService.changeFirstUse(user, false);
         // Logout using Spring's utility
         new SecurityContextLogoutHandler().logout(request, response, null);
-
         return new RedirectView(LOGIN_MESSAGETYPE_CREDSUPDATED, true);
     }
 
@@ -166,24 +149,17 @@ public class UserController {
         if (principal == null) {
             return new RedirectView("/account?messageType=notAuthenticated", true);
         }
-
         Optional<User> userOpt = userService.findByUsernameIgnoreCase(principal.getName());
-
         if (userOpt == null || userOpt.isEmpty()) {
             return new RedirectView("/account?messageType=userNotFound", true);
         }
-
         User user = userOpt.get();
-
         if (!userService.isPasswordCorrect(user, currentPassword)) {
             return new RedirectView("/account?messageType=incorrectPassword", true);
         }
-
         userService.changePassword(user, newPassword);
-
         // Logout using Spring's utility
         new SecurityContextLogoutHandler().logout(request, response, null);
-
         return new RedirectView(LOGIN_MESSAGETYPE_CREDSUPDATED, true);
     }
 
@@ -193,17 +169,14 @@ public class UserController {
             throws IOException {
         Map<String, String[]> paramMap = request.getParameterMap();
         Map<String, String> updates = new HashMap<>();
-
         for (Map.Entry<String, String[]> entry : paramMap.entrySet()) {
             updates.put(entry.getKey(), entry.getValue()[0]);
         }
-
         log.debug("Processed updates: " + updates);
-
         // Assuming you have a method in userService to update the settings for a user
         userService.updateUserSettings(principal.getName(), updates);
-
-        return "redirect:/account"; // Redirect to a page of your choice after updating
+        // Redirect to a page of your choice after updating
+        return "redirect:/account";
     }
 
     @PreAuthorize("hasRole('ROLE_ADMIN')")
@@ -216,13 +189,10 @@ public class UserController {
             @RequestParam(name = "forceChange", required = false, defaultValue = "false")
                     boolean forceChange)
             throws IllegalArgumentException, IOException {
-
         if (!userService.isUsernameValid(username)) {
             return new RedirectView("/addUsers?messageType=invalidUsername", true);
         }
-
         Optional<User> userOpt = userService.findByUsernameIgnoreCase(username);
-
         if (userOpt.isPresent()) {
             User user = userOpt.get();
             if (user != null && user.getUsername().equalsIgnoreCase(username)) {
@@ -243,7 +213,6 @@ public class UserController {
             // If the role ID is not valid, redirect with an error message
             return new RedirectView("/addUsers?messageType=invalidRole", true);
         }
-
         if (authType.equalsIgnoreCase(AuthenticationType.SSO.toString())) {
             userService.saveUser(username, AuthenticationType.SSO, role);
         } else {
@@ -252,9 +221,9 @@ public class UserController {
             }
             userService.saveUser(username, password, role, forceChange);
         }
-
         return new RedirectView(
-                "/addUsers", true); // Redirect to account page after adding the user
+                "/addUsers", // Redirect to account page after adding the user
+                true);
     }
 
     @PreAuthorize("hasRole('ROLE_ADMIN')")
@@ -264,9 +233,7 @@ public class UserController {
             @RequestParam(name = "role") String role,
             Authentication authentication)
             throws IOException {
-
         Optional<User> userOpt = userService.findByUsernameIgnoreCase(username);
-
         if (!userOpt.isPresent()) {
             return new RedirectView("/addUsers?messageType=userNotFound", true);
         }
@@ -275,7 +242,6 @@ public class UserController {
         }
         // Get the currently authenticated username
         String currentUsername = authentication.getName();
-
         // Check if the provided username matches the current session's username
         if (currentUsername.equalsIgnoreCase(username)) {
             return new RedirectView("/addUsers?messageType=downgradeCurrentUser", true);
@@ -292,11 +258,10 @@ public class UserController {
             return new RedirectView("/addUsers?messageType=invalidRole", true);
         }
         User user = userOpt.get();
-
         userService.changeRole(user, role);
-
         return new RedirectView(
-                "/addUsers", true); // Redirect to account page after adding the user
+                "/addUsers", // Redirect to account page after adding the user
+                true);
     }
 
     @PreAuthorize("hasRole('ROLE_ADMIN')")
@@ -306,9 +271,7 @@ public class UserController {
             @RequestParam("enabled") boolean enabled,
             Authentication authentication)
             throws IOException {
-
         Optional<User> userOpt = userService.findByUsernameIgnoreCase(username);
-
         if (!userOpt.isPresent()) {
             return new RedirectView("/addUsers?messageType=userNotFound", true);
         }
@@ -317,15 +280,12 @@ public class UserController {
         }
         // Get the currently authenticated username
         String currentUsername = authentication.getName();
-
         // Check if the provided username matches the current session's username
         if (currentUsername.equalsIgnoreCase(username)) {
             return new RedirectView("/addUsers?messageType=disabledCurrentUser", true);
         }
         User user = userOpt.get();
-
         userService.changeUserEnabled(user, enabled);
-
         if (!enabled) {
             // Invalidate all sessions if the user is being disabled
             List<Object> principals = sessionRegistry.getAllPrincipals();
@@ -349,28 +309,24 @@ public class UserController {
                 }
             }
         }
-
         return new RedirectView(
-                "/addUsers", true); // Redirect to account page after adding the user
+                "/addUsers", // Redirect to account page after adding the user
+                true);
     }
 
     @PreAuthorize("hasRole('ROLE_ADMIN')")
     @PostMapping("/admin/deleteUser/{username}")
     public RedirectView deleteUser(
             @PathVariable("username") String username, Authentication authentication) {
-
         if (!userService.usernameExistsIgnoreCase(username)) {
             return new RedirectView("/addUsers?messageType=deleteUsernameExists", true);
         }
-
         // Get the currently authenticated username
         String currentUsername = authentication.getName();
-
         // Check if the provided username matches the current session's username
         if (currentUsername.equalsIgnoreCase(username)) {
             return new RedirectView("/addUsers?messageType=deleteCurrentUser", true);
         }
-
         // Invalidate all sessions before deleting the user
         List<SessionInformation> sessionsInformations =
                 sessionRegistry.getAllSessions(authentication.getPrincipal(), false);
@@ -410,6 +366,4 @@ public class UserController {
         }
         return ResponseEntity.ok(apiKey);
     }
-
-    private static final String LOGIN_MESSAGETYPE_CREDSUPDATED = "/login?messageType=credsUpdated";
 }

src/main/java/stirling/software/SPDF/controller/api/converters/ConvertOfficeController.java

@@ -33,6 +33,13 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 @RequestMapping("/api/v1/convert")
 public class ConvertOfficeController {
 
+    private final CustomPDDocumentFactory pdfDocumentFactory;
+
+    @Autowired
+    public ConvertOfficeController(CustomPDDocumentFactory pdfDocumentFactory) {
+        this.pdfDocumentFactory = pdfDocumentFactory;
+    }
+
     public File convertToPdf(MultipartFile inputFile) throws IOException, InterruptedException {
         // Check for valid file extension
         String originalFilename = Filenames.toSimpleFileName(inputFile.getOriginalFilename());
@@ -78,13 +85,6 @@ public class ConvertOfficeController {
         return fileExtension.matches(extensionPattern);
     }
 
-    private final CustomPDDocumentFactory pdfDocumentFactory;
-
-    @Autowired
-    public ConvertOfficeController(CustomPDDocumentFactory pdfDocumentFactory) {
-        this.pdfDocumentFactory = pdfDocumentFactory;
-    }
-
     @PostMapping(consumes = "multipart/form-data", value = "/file/pdf")
     @Operation(
             summary = "Convert a file to a PDF using LibreOffice",

src/main/java/stirling/software/SPDF/controller/api/converters/ConvertPDFToBookController.java

@@ -6,7 +6,6 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
@@ -26,9 +25,13 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 // @RequestMapping("/api/v1/convert")
 public class ConvertPDFToBookController {
 
-    @Autowired
     @Qualifier("bookAndHtmlFormatsInstalled")
-    private boolean bookAndHtmlFormatsInstalled;
+    private final boolean bookAndHtmlFormatsInstalled;
+
+    public ConvertPDFToBookController(
+            @Qualifier("bookAndHtmlFormatsInstalled") boolean bookAndHtmlFormatsInstalled) {
+        this.bookAndHtmlFormatsInstalled = bookAndHtmlFormatsInstalled;
+    }
 
     @PostMapping(consumes = "multipart/form-data", value = "/pdf/book")
     @Operation(
@@ -39,16 +42,13 @@ public class ConvertPDFToBookController {
     public ResponseEntity<byte[]> HtmlToPdf(@ModelAttribute PdfToBookRequest request)
             throws Exception {
         MultipartFile fileInput = request.getFileInput();
-
         if (!bookAndHtmlFormatsInstalled) {
             throw new IllegalArgumentException(
                     "bookAndHtmlFormatsInstalled flag is False, this functionality is not available");
         }
-
         if (fileInput == null) {
             throw new IllegalArgumentException("Please provide a file for conversion.");
         }
-
         // Validate the output format
         String outputFormat = request.getOutputFormat().toLowerCase();
         List<String> allowedFormats =
@@ -58,28 +58,24 @@ public class ConvertPDFToBookController {
         if (!allowedFormats.contains(outputFormat)) {
             throw new IllegalArgumentException("Invalid output format: " + outputFormat);
         }
-
         byte[] outputFileBytes;
         List<String> command = new ArrayList<>();
         Path tempOutputFile =
                 Files.createTempFile(
-                        "output_",
-                        "." + outputFormat); // Use the output format for the file extension
+                        "output_", // Use the output format for the file extension
+                        "." + outputFormat);
         Path tempInputFile = null;
-
         try {
             // Create temp input file from the provided PDF
-            tempInputFile = Files.createTempFile("input_", ".pdf"); // Assuming input is always PDF
+            // Assuming input is always PDF
+            tempInputFile = Files.createTempFile("input_", ".pdf");
             Files.write(tempInputFile, fileInput.getBytes());
-
             command.add("ebook-convert");
             command.add(tempInputFile.toString());
             command.add(tempOutputFile.toString());
-
             ProcessExecutorResult returnCode =
                     ProcessExecutor.getInstance(ProcessExecutor.Processes.CALIBRE)
                             .runCommandWithOutputHandling(command);
-
             outputFileBytes = Files.readAllBytes(tempOutputFile);
         } finally {
             // Clean up temporary files
@@ -88,13 +84,12 @@ public class ConvertPDFToBookController {
             }
             Files.deleteIfExists(tempOutputFile);
         }
-
         String outputFilename =
                 Filenames.toSimpleFileName(fileInput.getOriginalFilename())
                                 .replaceFirst("[.][^.]+$", "")
                         + "."
-                        + outputFormat; // Remove file extension and append .pdf
-
+                        + // Remove file extension and append .pdf
+                        outputFormat;
         return WebResponseUtils.bytesToWebResponse(outputFileBytes, outputFilename);
     }
 }

src/main/java/stirling/software/SPDF/controller/api/misc/AutoRenameController.java

@@ -46,16 +46,6 @@ public class AutoRenameController {
         PDDocument document = Loader.loadPDF(file.getBytes());
         PDFTextStripper reader =
                 new PDFTextStripper() {
-                    class LineInfo {
-                        String text;
-                        float fontSize;
-
-                        LineInfo(String text, float fontSize) {
-                            this.text = text;
-                            this.fontSize = fontSize;
-                        }
-                    }
-
                     List<LineInfo> lineInfos = new ArrayList<>();
                     StringBuilder lineBuilder = new StringBuilder();
                     float lastY = -1;
@@ -122,6 +112,16 @@ public class AutoRenameController {
                                                         .text)
                                         : null);
                     }
+
+                    class LineInfo {
+                        String text;
+                        float fontSize;
+
+                        LineInfo(String text, float fontSize) {
+                            this.text = text;
+                            this.fontSize = fontSize;
+                        }
+                    }
                 };
 
         String header = reader.getText(document);

src/main/java/stirling/software/SPDF/controller/api/misc/AutoSplitPdfController.java

@@ -23,12 +23,7 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.multipart.MultipartFile;
 
-import com.google.zxing.BinaryBitmap;
-import com.google.zxing.LuminanceSource;
-import com.google.zxing.MultiFormatReader;
-import com.google.zxing.NotFoundException;
-import com.google.zxing.PlanarYUVLuminanceSource;
-import com.google.zxing.Result;
+import com.google.zxing.*;
 import com.google.zxing.common.HybridBinarizer;
 
 import io.github.pixee.security.Filenames;
@@ -56,6 +51,52 @@ public class AutoSplitPdfController {
         this.pdfDocumentFactory = pdfDocumentFactory;
     }
 
+    private static String decodeQRCode(BufferedImage bufferedImage) {
+        LuminanceSource source;
+
+        if (bufferedImage.getRaster().getDataBuffer() instanceof DataBufferByte) {
+            byte[] pixels = ((DataBufferByte) bufferedImage.getRaster().getDataBuffer()).getData();
+            source =
+                    new PlanarYUVLuminanceSource(
+                            pixels,
+                            bufferedImage.getWidth(),
+                            bufferedImage.getHeight(),
+                            0,
+                            0,
+                            bufferedImage.getWidth(),
+                            bufferedImage.getHeight(),
+                            false);
+        } else if (bufferedImage.getRaster().getDataBuffer() instanceof DataBufferInt) {
+            int[] pixels = ((DataBufferInt) bufferedImage.getRaster().getDataBuffer()).getData();
+            byte[] newPixels = new byte[pixels.length];
+            for (int i = 0; i < pixels.length; i++) {
+                newPixels[i] = (byte) (pixels[i] & 0xff);
+            }
+            source =
+                    new PlanarYUVLuminanceSource(
+                            newPixels,
+                            bufferedImage.getWidth(),
+                            bufferedImage.getHeight(),
+                            0,
+                            0,
+                            bufferedImage.getWidth(),
+                            bufferedImage.getHeight(),
+                            false);
+        } else {
+            throw new IllegalArgumentException(
+                    "BufferedImage must have 8-bit gray scale, 24-bit RGB, 32-bit ARGB (packed int), byte gray, or 3-byte/4-byte RGB image data");
+        }
+
+        BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
+
+        try {
+            Result result = new MultiFormatReader().decode(bitmap);
+            return result.getText();
+        } catch (NotFoundException e) {
+            return null; // there is no QR code in the image
+        }
+    }
+
     @PostMapping(value = "/auto-split-pdf", consumes = "multipart/form-data")
     @Operation(
             summary = "Auto split PDF pages into separate documents",
@@ -154,50 +195,4 @@ public class AutoSplitPdfController {
             }
         }
     }
-
-    private static String decodeQRCode(BufferedImage bufferedImage) {
-        LuminanceSource source;
-
-        if (bufferedImage.getRaster().getDataBuffer() instanceof DataBufferByte) {
-            byte[] pixels = ((DataBufferByte) bufferedImage.getRaster().getDataBuffer()).getData();
-            source =
-                    new PlanarYUVLuminanceSource(
-                            pixels,
-                            bufferedImage.getWidth(),
-                            bufferedImage.getHeight(),
-                            0,
-                            0,
-                            bufferedImage.getWidth(),
-                            bufferedImage.getHeight(),
-                            false);
-        } else if (bufferedImage.getRaster().getDataBuffer() instanceof DataBufferInt) {
-            int[] pixels = ((DataBufferInt) bufferedImage.getRaster().getDataBuffer()).getData();
-            byte[] newPixels = new byte[pixels.length];
-            for (int i = 0; i < pixels.length; i++) {
-                newPixels[i] = (byte) (pixels[i] & 0xff);
-            }
-            source =
-                    new PlanarYUVLuminanceSource(
-                            newPixels,
-                            bufferedImage.getWidth(),
-                            bufferedImage.getHeight(),
-                            0,
-                            0,
-                            bufferedImage.getWidth(),
-                            bufferedImage.getHeight(),
-                            false);
-        } else {
-            throw new IllegalArgumentException(
-                    "BufferedImage must have 8-bit gray scale, 24-bit RGB, 32-bit ARGB (packed int), byte gray, or 3-byte/4-byte RGB image data");
-        }
-
-        BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
-
-        try {
-            Result result = new MultiFormatReader().decode(bitmap);
-            return result.getText();
-        } catch (NotFoundException e) {
-            return null; // there is no QR code in the image
-        }
-    }
 }

src/main/java/stirling/software/SPDF/controller/api/misc/BlankPageController.java

@@ -47,6 +47,32 @@ public class BlankPageController {
         this.pdfDocumentFactory = pdfDocumentFactory;
     }
 
+    public static boolean isBlankImage(
+            BufferedImage image, int threshold, double whitePercent, int blurSize) {
+        if (image == null) {
+            log.info("Error: Image is null");
+            return false;
+        }
+
+        // Convert to binary image based on the threshold
+        int whitePixels = 0;
+        int totalPixels = image.getWidth() * image.getHeight();
+
+        for (int i = 0; i < image.getHeight(); i++) {
+            for (int j = 0; j < image.getWidth(); j++) {
+                int color = image.getRGB(j, i) & 0xFF;
+                if (color >= 255 - threshold) {
+                    whitePixels++;
+                }
+            }
+        }
+
+        double whitePixelPercentage = (whitePixels / (double) totalPixels) * 100;
+        log.info(String.format("Page has white pixel percent of %.2f%%", whitePixelPercentage));
+
+        return whitePixelPercentage >= whitePercent;
+    }
+
     @PostMapping(consumes = "multipart/form-data", value = "/remove-blanks")
     @Operation(
             summary = "Remove blank pages from a PDF file",
@@ -143,30 +169,4 @@ public class BlankPageController {
             zos.closeEntry();
         }
     }
-
-    public static boolean isBlankImage(
-            BufferedImage image, int threshold, double whitePercent, int blurSize) {
-        if (image == null) {
-            log.info("Error: Image is null");
-            return false;
-        }
-
-        // Convert to binary image based on the threshold
-        int whitePixels = 0;
-        int totalPixels = image.getWidth() * image.getHeight();
-
-        for (int i = 0; i < image.getHeight(); i++) {
-            for (int j = 0; j < image.getWidth(); j++) {
-                int color = image.getRGB(j, i) & 0xFF;
-                if (color >= 255 - threshold) {
-                    whitePixels++;
-                }
-            }
-        }
-
-        double whitePixelPercentage = (whitePixels / (double) totalPixels) * 100;
-        log.info(String.format("Page has white pixel percent of %.2f%%", whitePixelPercentage));
-
-        return whitePixelPercentage >= whitePercent;
-    }
 }

src/main/java/stirling/software/SPDF/controller/api/misc/CompressController.java

@@ -1,6 +1,6 @@
 package stirling.software.SPDF.controller.api.misc;
 
-import java.awt.Image;
+import java.awt.*;
 import java.awt.image.BufferedImage;
 import java.io.ByteArrayOutputStream;
 import java.nio.file.Files;

src/main/java/stirling/software/SPDF/controller/api/misc/ExtractImageScansController.java

@@ -42,6 +42,8 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 @Tag(name = "Misc", description = "Miscellaneous APIs")
 public class ExtractImageScansController {
 
+    private static final String REPLACEFIRST = "[.][^.]+$";
+
     @PostMapping(consumes = "multipart/form-data", value = "/extract-image-scans")
     @Operation(
             summary = "Extract image scans from an input file",
@@ -221,6 +223,4 @@ public class ExtractImageScansController {
                     });
         }
     }
-
-    private static final String REPLACEFIRST = "[.][^.]+$";
 }

src/main/java/stirling/software/SPDF/controller/api/misc/FakeScanControllerWIP.java

@@ -1,19 +1,10 @@
 package stirling.software.SPDF.controller.api.misc;
 
-import java.awt.AlphaComposite;
-import java.awt.BasicStroke;
-import java.awt.Color;
-import java.awt.GradientPaint;
-import java.awt.Graphics2D;
-import java.awt.RenderingHints;
+import java.awt.*;
 import java.awt.geom.AffineTransform;
 import java.awt.geom.Ellipse2D;
 import java.awt.geom.Path2D;
-import java.awt.image.AffineTransformOp;
-import java.awt.image.BufferedImage;
-import java.awt.image.BufferedImageOp;
-import java.awt.image.ConvolveOp;
-import java.awt.image.Kernel;
+import java.awt.image.*;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.security.SecureRandom;

src/main/java/stirling/software/SPDF/controller/api/misc/MetadataController.java

@@ -13,11 +13,7 @@ import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDDocumentInformation;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.WebDataBinder;
-import org.springframework.web.bind.annotation.InitBinder;
-import org.springframework.web.bind.annotation.ModelAttribute;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 
 import io.github.pixee.security.Filenames;

src/main/java/stirling/software/SPDF/controller/api/misc/OCRController.java

@@ -1,18 +1,10 @@
 package stirling.software.SPDF.controller.api.misc;
 
 import java.awt.image.BufferedImage;
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStreamReader;
+import java.io.*;
 import java.nio.file.Files;
 import java.nio.file.Path;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.List;
+import java.util.*;
 import java.util.stream.Collectors;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
@@ -24,7 +16,6 @@ import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.apache.pdfbox.rendering.PDFRenderer;
 import org.apache.pdfbox.text.PDFTextStripper;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
@@ -48,12 +39,14 @@ import stirling.software.SPDF.service.CustomPDDocumentFactory;
 @Slf4j
 public class OCRController {
 
-    @Autowired private ApplicationProperties applicationProperties;
+    private final ApplicationProperties applicationProperties;
 
     private final CustomPDDocumentFactory pdfDocumentFactory;
 
-    @Autowired
-    public OCRController(CustomPDDocumentFactory pdfDocumentFactory) {
+    public OCRController(
+            ApplicationProperties applicationProperties,
+            CustomPDDocumentFactory pdfDocumentFactory) {
+        this.applicationProperties = applicationProperties;
         this.pdfDocumentFactory = pdfDocumentFactory;
     }
 
@@ -78,13 +71,11 @@ public class OCRController {
         MultipartFile inputFile = request.getFileInput();
         List<String> languages = request.getLanguages();
         String ocrType = request.getOcrType();
-
         Path tempDir = Files.createTempDirectory("ocr_process");
         Path tempInputFile = tempDir.resolve("input.pdf");
         Path tempOutputDir = tempDir.resolve("output");
         Path tempImagesDir = tempDir.resolve("images");
         Path finalOutputFile = tempDir.resolve("final_output.pdf");
-
         Files.createDirectories(tempOutputDir);
         Files.createDirectories(tempImagesDir);
         Process process = null;
@@ -93,39 +84,32 @@ public class OCRController {
             inputFile.transferTo(tempInputFile.toFile());
             PDFMergerUtility merger = new PDFMergerUtility();
             merger.setDestinationFileName(finalOutputFile.toString());
-
             try (PDDocument document = pdfDocumentFactory.load(tempInputFile.toFile())) {
                 PDFRenderer pdfRenderer = new PDFRenderer(document);
                 int pageCount = document.getNumberOfPages();
-
                 for (int pageNum = 0; pageNum < pageCount; pageNum++) {
                     PDPage page = document.getPage(pageNum);
                     boolean hasText = false;
-
                     // Check for existing text
                     try (PDDocument tempDoc = new PDDocument()) {
                         tempDoc.addPage(page);
                         PDFTextStripper stripper = new PDFTextStripper();
                         hasText = !stripper.getText(tempDoc).trim().isEmpty();
                     }
-
                     boolean shouldOcr =
                             switch (ocrType) {
                                 case "skip-text" -> !hasText;
                                 case "force-ocr" -> true;
                                 default -> true;
                             };
-
                     Path pageOutputPath =
                             tempOutputDir.resolve(String.format("page_%d.pdf", pageNum));
-
                     if (shouldOcr) {
                         // Convert page to image
                         BufferedImage image = pdfRenderer.renderImageWithDPI(pageNum, 300);
                         Path imagePath =
                                 tempImagesDir.resolve(String.format("page_%d.png", pageNum));
                         ImageIO.write(image, "png", imagePath.toFile());
-
                         // Build OCR command
                         List<String> command = new ArrayList<>();
                         command.add("tesseract");
@@ -136,11 +120,10 @@ public class OCRController {
                                         .toString());
                         command.add("-l");
                         command.add(String.join("+", languages));
-                        command.add("pdf"); // Always output PDF
-
+                        // Always output PDF
+                        command.add("pdf");
                         ProcessBuilder pb = new ProcessBuilder(command);
                         process = pb.start();
-
                         // Capture any error output
                         try (BufferedReader reader =
                                 new BufferedReader(
@@ -150,13 +133,11 @@ public class OCRController {
                                 log.debug("Tesseract: {}", line);
                             }
                         }
-
                         int exitCode = process.waitFor();
                         if (exitCode != 0) {
                             throw new RuntimeException(
                                     "Tesseract failed with exit code: " + exitCode);
                         }
-
                         // Add OCR'd PDF to merger
                         merger.addSource(pageOutputPath.toFile());
                     } else {
@@ -169,29 +150,24 @@ public class OCRController {
                     }
                 }
             }
-
             // Merge all pages into final PDF
             merger.mergeDocuments(null);
-
             // Read the final PDF file
             byte[] pdfContent = Files.readAllBytes(finalOutputFile);
             String outputFilename =
                     Filenames.toSimpleFileName(inputFile.getOriginalFilename())
                                     .replaceFirst("[.][^.]+$", "")
                             + "_OCR.pdf";
-
             return ResponseEntity.ok()
                     .header(
                             "Content-Disposition",
                             "attachment; filename=\"" + outputFilename + "\"")
                     .contentType(MediaType.APPLICATION_PDF)
                     .body(pdfContent);
-
         } finally {
             if (process != null) {
                 process.destroy();
             }
-
             // Clean up temporary files
             deleteDirectory(tempDir);
         }
@@ -203,17 +179,14 @@ public class OCRController {
             log.warn("File {} does not exist, skipping", file);
             return;
         }
-
         try (FileInputStream fis = new FileInputStream(file)) {
             ZipEntry zipEntry = new ZipEntry(filename);
             zipOut.putNextEntry(zipEntry);
-
             byte[] buffer = new byte[1024];
             int length;
             while ((length = fis.read(buffer)) >= 0) {
                 zipOut.write(buffer, 0, length);
             }
-
             zipOut.closeEntry();
         }
     }

src/main/java/stirling/software/SPDF/controller/api/misc/PrintFileController.java

@@ -1,7 +1,6 @@
 package stirling.software.SPDF.controller.api.misc;
 
-import java.awt.Graphics;
-import java.awt.Graphics2D;
+import java.awt.*;
 import java.awt.image.BufferedImage;
 import java.awt.print.PageFormat;
 import java.awt.print.Printable;

src/main/java/stirling/software/SPDF/controller/api/misc/StampController.java

@@ -1,6 +1,6 @@
 package stirling.software.SPDF.controller.api.misc;
 
-import java.awt.Color;
+import java.awt.*;
 import java.awt.image.BufferedImage;
 import java.io.File;
 import java.io.FileOutputStream;

src/main/java/stirling/software/SPDF/controller/api/pipeline/ApiDocService.java

@@ -30,17 +30,24 @@ public class ApiDocService {
 
     private final Map<String, ApiEndpoint> apiDocumentation = new HashMap<>();
 
-    @Autowired private ServletContext servletContext;
+    private final ServletContext servletContext;
+    private final UserServiceInterface userService;
+    Map<String, List<String>> outputToFileTypes = new HashMap<>();
+    JsonNode apiDocsJsonRootNode;
+
+    public ApiDocService(
+            ServletContext servletContext,
+            @Autowired(required = false) UserServiceInterface userService) {
+        this.servletContext = servletContext;
+        this.userService = userService;
+    }
 
     private String getApiDocsUrl() {
         String contextPath = servletContext.getContextPath();
         String port = SPdfApplication.getStaticPort();
-
         return "http://localhost:" + port + contextPath + "/v1/api-docs";
     }
 
-    Map<String, List<String>> outputToFileTypes = new HashMap<>();
-
     public List<String> getExtensionTypes(boolean output, String operationName) {
         if (outputToFileTypes.size() == 0) {
             outputToFileTypes.put("PDF", Arrays.asList("pdf"));
@@ -64,14 +71,12 @@ public class ApiDocService {
                     "BOOK", Arrays.asList("epub", "mobi", "azw3", "fb2", "txt", "docx"));
             // type.
         }
-
         if (apiDocsJsonRootNode == null || apiDocumentation.size() == 0) {
             loadApiDocumentation();
         }
         if (!apiDocumentation.containsKey(operationName)) {
             return null;
         }
-
         ApiEndpoint endpoint = apiDocumentation.get(operationName);
         String description = endpoint.getDescription();
         Pattern pattern = null;
@@ -90,16 +95,11 @@ public class ApiDocService {
         return null;
     }
 
-    @Autowired(required = false)
-    private UserServiceInterface userService;
-
     private String getApiKeyForUser() {
         if (userService == null) return "";
         return userService.getApiKeyForUser(Role.INTERNAL_API_USER.getRoleId());
     }
 
-    JsonNode apiDocsJsonRootNode;
-
     // @EventListener(ApplicationReadyEvent.class)
     private synchronized void loadApiDocumentation() {
         String apiDocsJson = "";
@@ -110,15 +110,12 @@ public class ApiDocService {
                 headers.set("X-API-KEY", apiKey);
             }
             HttpEntity<String> entity = new HttpEntity<>(headers);
-
             RestTemplate restTemplate = new RestTemplate();
             ResponseEntity<String> response =
                     restTemplate.exchange(getApiDocsUrl(), HttpMethod.GET, entity, String.class);
             apiDocsJson = response.getBody();
-
             ObjectMapper mapper = new ObjectMapper();
             apiDocsJsonRootNode = mapper.readTree(apiDocsJson);
-
             JsonNode paths = apiDocsJsonRootNode.path("paths");
             paths.fields()
                     .forEachRemaining(
@@ -155,19 +152,15 @@ public class ApiDocService {
         if (!apiDocumentation.containsKey(operationName)) {
             return false;
         }
-
         ApiEndpoint endpoint = apiDocumentation.get(operationName);
         String description = endpoint.getDescription();
-
         Pattern pattern = Pattern.compile("Type:(\\w+)");
         Matcher matcher = pattern.matcher(description);
         if (matcher.find()) {
             String type = matcher.group(1);
             return type.startsWith("MI");
         }
-
         return false;
     }
 }
-
 // Model class for API Endpoint

src/main/java/stirling/software/SPDF/controller/api/pipeline/PipelineController.java

@@ -8,7 +8,6 @@ import java.util.Map;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.core.io.Resource;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
@@ -37,17 +36,27 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 public class PipelineController {
 
     final String watchedFoldersDir = "./pipeline/watchedFolders/";
+
     final String finishedFoldersDir = "./pipeline/finishedFolders/";
-    @Autowired PipelineProcessor processor;
 
-    @Autowired ApplicationProperties applicationProperties;
+    private final PipelineProcessor processor;
 
-    @Autowired private ObjectMapper objectMapper;
+    private final ApplicationProperties applicationProperties;
+
+    private final ObjectMapper objectMapper;
+
+    public PipelineController(
+            PipelineProcessor processor,
+            ApplicationProperties applicationProperties,
+            ObjectMapper objectMapper) {
+        this.processor = processor;
+        this.applicationProperties = applicationProperties;
+        this.objectMapper = objectMapper;
+    }
 
     @PostMapping("/handleData")
     public ResponseEntity<byte[]> handleData(@ModelAttribute HandleDataRequest request)
             throws JsonMappingException, JsonProcessingException {
-
         MultipartFile[] files = request.getFileInput();
         String jsonString = request.getJson();
         if (files == null) {
@@ -68,26 +77,21 @@ public class PipelineController {
                 byte[] bytes = new byte[(int) singleFile.contentLength()];
                 is.read(bytes);
                 is.close();
-
                 log.info("Returning single file response...");
                 return WebResponseUtils.bytesToWebResponse(
                         bytes, singleFile.getFilename(), MediaType.APPLICATION_OCTET_STREAM);
             } else if (outputFiles == null) {
                 return null;
             }
-
             // Create a ByteArrayOutputStream to hold the zip
             ByteArrayOutputStream baos = new ByteArrayOutputStream();
             ZipOutputStream zipOut = new ZipOutputStream(baos);
-
             // A map to keep track of filenames and their counts
             Map<String, Integer> filenameCount = new HashMap<>();
-
             // Loop through each file and add it to the zip
             for (Resource file : outputFiles) {
                 String originalFilename = file.getFilename();
                 String filename = originalFilename;
-
                 // Check if the filename already exists, and modify it if necessary
                 if (filenameCount.containsKey(originalFilename)) {
                     int count = filenameCount.get(originalFilename);
@@ -98,24 +102,18 @@ public class PipelineController {
                 } else {
                     filenameCount.put(originalFilename, 1);
                 }
-
                 ZipEntry zipEntry = new ZipEntry(filename);
                 zipOut.putNextEntry(zipEntry);
-
                 // Read the file into a byte array
                 InputStream is = file.getInputStream();
                 byte[] bytes = new byte[(int) file.contentLength()];
                 is.read(bytes);
-
                 // Write the bytes of the file to the zip
                 zipOut.write(bytes, 0, bytes.length);
                 zipOut.closeEntry();
-
                 is.close();
             }
-
             zipOut.close();
-
             log.info("Returning zipped file response...");
             return WebResponseUtils.boasToWebResponse(
                     baos, "output.zip", MediaType.APPLICATION_OCTET_STREAM);

src/main/java/stirling/software/SPDF/controller/api/pipeline/PipelineDirectoryProcessor.java

@@ -16,7 +16,6 @@ import java.util.List;
 import java.util.Optional;
 import java.util.stream.Stream;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.core.io.ByteArrayResource;
 import org.springframework.core.io.Resource;
@@ -34,19 +33,31 @@ import stirling.software.SPDF.utils.FileMonitor;
 @Slf4j
 public class PipelineDirectoryProcessor {
 
-    @Autowired private ObjectMapper objectMapper;
-    @Autowired private ApiDocService apiDocService;
-    @Autowired PipelineProcessor processor;
-    @Autowired FileMonitor fileMonitor;
+    private final ObjectMapper objectMapper;
 
-    final String watchedFoldersDir;
-    final String finishedFoldersDir;
+    private final ApiDocService apiDocService;
+
+    private final PipelineProcessor processor;
+
+    private final FileMonitor fileMonitor;
+
+    private final String watchedFoldersDir;
+
+    private final String finishedFoldersDir;
 
     public PipelineDirectoryProcessor(
+            ObjectMapper objectMapper,
+            ApiDocService apiDocService,
             @Qualifier("watchedFoldersDir") String watchedFoldersDir,
-            @Qualifier("finishedFoldersDir") String finishedFoldersDir) {
+            @Qualifier("finishedFoldersDir") String finishedFoldersDir,
+            PipelineProcessor processor,
+            FileMonitor fileMonitor) {
+        this.objectMapper = objectMapper;
+        this.apiDocService = apiDocService;
         this.watchedFoldersDir = watchedFoldersDir;
         this.finishedFoldersDir = finishedFoldersDir;
+        this.processor = processor;
+        this.fileMonitor = fileMonitor;
     }
 
     @Scheduled(fixedRate = 60000)
@@ -81,13 +92,11 @@ public class PipelineDirectoryProcessor {
     public void handleDirectory(Path dir) throws IOException {
         log.info("Handling directory: {}", dir);
         Path processingDir = createProcessingDirectory(dir);
-
         Optional<Path> jsonFileOptional = findJsonFile(dir);
         if (!jsonFileOptional.isPresent()) {
             log.warn("No .JSON settings file found. No processing will happen for dir {}.", dir);
             return;
         }
-
         Path jsonFile = jsonFileOptional.get();
         PipelineConfig config = readAndParseJson(jsonFile);
         processPipelineOperations(dir, processingDir, jsonFile, config);
@@ -166,13 +175,11 @@ public class PipelineDirectoryProcessor {
     private Path resolveUniqueFilePath(Path directory, String originalFileName) {
         Path filePath = directory.resolve(originalFileName);
         int counter = 1;
-
         while (Files.exists(filePath)) {
             String newName = appendSuffixToFileName(originalFileName, "(" + counter + ")");
             filePath = directory.resolve(newName);
             counter++;
         }
-
         return filePath;
     }
 
@@ -211,17 +218,14 @@ public class PipelineDirectoryProcessor {
         for (Resource resource : resources) {
             String outputFileName = createOutputFileName(resource, config);
             Path outputPath = determineOutputPath(config, dir);
-
             if (!Files.exists(outputPath)) {
                 Files.createDirectories(outputPath);
                 log.info("Created directory: {}", outputPath);
             }
-
             Path outputFile = outputPath.resolve(outputFileName);
             try (OutputStream os = new FileOutputStream(outputFile.toFile())) {
                 os.write(((ByteArrayResource) resource).getByteArray());
             }
-
             log.info("File moved and renamed to {}", outputFile);
         }
     }
@@ -230,7 +234,6 @@ public class PipelineDirectoryProcessor {
         String resourceName = resource.getFilename();
         String baseName = resourceName.substring(0, resourceName.lastIndexOf('.'));
         String extension = resourceName.substring(resourceName.lastIndexOf('.') + 1);
-
         String outputFileName =
                 config.getOutputPattern()
                                 .replace("{filename}", baseName)
@@ -245,7 +248,6 @@ public class PipelineDirectoryProcessor {
                                                 .format(DateTimeFormatter.ofPattern("HHmmss")))
                         + "."
                         + extension;
-
         return outputFileName;
     }
 
@@ -255,7 +257,6 @@ public class PipelineDirectoryProcessor {
                         .replace("{outputFolder}", finishedFoldersDir)
                         .replace("{folderName}", dir.toString())
                         .replaceAll("\\\\?watchedFolders", "");
-
         return Paths.get(outputDir).isAbsolute() ? Paths.get(outputDir) : Paths.get(".", outputDir);
     }
 

src/main/java/stirling/software/SPDF/controller/api/pipeline/PipelineProcessor.java

@@ -1,10 +1,6 @@
 package stirling.software.SPDF.controller.api.pipeline;
 
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.File;
-import java.io.IOException;
-import java.io.PrintStream;
+import java.io.*;
 import java.net.URLDecoder;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
@@ -22,12 +18,7 @@ import java.util.zip.ZipInputStream;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.core.io.ByteArrayResource;
 import org.springframework.core.io.Resource;
-import org.springframework.http.HttpEntity;
-import org.springframework.http.HttpHeaders;
-import org.springframework.http.HttpMethod;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.MediaType;
-import org.springframework.http.ResponseEntity;
+import org.springframework.http.*;
 import org.springframework.stereotype.Service;
 import org.springframework.util.LinkedMultiValueMap;
 import org.springframework.util.MultiValueMap;
@@ -48,12 +39,39 @@ import stirling.software.SPDF.model.Role;
 @Slf4j
 public class PipelineProcessor {
 
-    @Autowired private ApiDocService apiDocService;
+    private final ApiDocService apiDocService;
 
-    @Autowired(required = false)
-    private UserServiceInterface userService;
+    private final UserServiceInterface userService;
 
-    @Autowired private ServletContext servletContext;
+    private final ServletContext servletContext;
+
+    public PipelineProcessor(
+            ApiDocService apiDocService,
+            @Autowired(required = false) UserServiceInterface userService,
+            ServletContext servletContext) {
+        this.apiDocService = apiDocService;
+        this.userService = userService;
+        this.servletContext = servletContext;
+    }
+
+    public static String removeTrailingNaming(String filename) {
+        // Splitting filename into name and extension
+        int dotIndex = filename.lastIndexOf(".");
+        if (dotIndex == -1) {
+            // No extension found
+            return filename;
+        }
+        String name = filename.substring(0, dotIndex);
+        String extension = filename.substring(dotIndex);
+        // Finding the last underscore
+        int underscoreIndex = name.lastIndexOf("_");
+        if (underscoreIndex == -1) {
+            // No underscore found
+            return filename;
+        }
+        // Removing the last part and reattaching the extension
+        return name.substring(0, underscoreIndex) + extension;
+    }
 
     private String getApiKeyForUser() {
         if (userService == null) return "";
@@ -63,22 +81,17 @@ public class PipelineProcessor {
     private String getBaseUrl() {
         String contextPath = servletContext.getContextPath();
         String port = SPdfApplication.getStaticPort();
-
         return "http://localhost:" + port + contextPath + "/";
     }
 
     List<Resource> runPipelineAgainstFiles(List<Resource> outputFiles, PipelineConfig config)
             throws Exception {
-
         ByteArrayOutputStream logStream = new ByteArrayOutputStream();
         PrintStream logPrintStream = new PrintStream(logStream);
-
         boolean hasErrors = false;
-
         for (PipelineOperation pipelineOperation : config.getOperations()) {
             String operation = pipelineOperation.getOperation();
             boolean isMultiInputOperation = apiDocService.isMultiInput(operation);
-
             log.info(
                     "Running operation: {} isMultiInputOperation {}",
                     operation,
@@ -89,9 +102,7 @@ public class PipelineProcessor {
                 inputFileTypes = new ArrayList<String>(Arrays.asList("ALL"));
             }
             // List outputFileTypes = apiDocService.getExtensionTypes(true, operation);
-
             String url = getBaseUrl() + operation;
-
             List<Resource> newOutputFiles = new ArrayList<>();
             if (!isMultiInputOperation) {
                 for (Resource file : outputFiles) {
@@ -101,7 +112,6 @@ public class PipelineProcessor {
                             hasInputFileType = true;
                             MultiValueMap<String, Object> body = new LinkedMultiValueMap<>();
                             body.add("fileInput", file);
-
                             for (Entry<String, Object> entry : parameters.entrySet()) {
                                 if (entry.getValue() instanceof List) {
                                     List<?> list = (List<?>) entry.getValue();
@@ -112,9 +122,7 @@ public class PipelineProcessor {
                                     body.add(entry.getKey(), entry.getValue());
                                 }
                             }
-
                             ResponseEntity<byte[]> response = sendWebRequest(url, body);
-
                             // If the operation is filter and the response body is null or empty,
                             // skip
                             // this
@@ -125,7 +133,6 @@ public class PipelineProcessor {
                                 log.info("Skipping file due to failing {}", operation);
                                 continue;
                             }
-
                             if (!response.getStatusCode().equals(HttpStatus.OK)) {
                                 logPrintStream.println("Error: " + response.getBody());
                                 hasErrors = true;
@@ -134,7 +141,6 @@ public class PipelineProcessor {
                             processOutputFiles(operation, response, newOutputFiles);
                         }
                     }
-
                     if (!hasInputFileType) {
                         logPrintStream.println(
                                 "No files with extension "
@@ -144,7 +150,6 @@ public class PipelineProcessor {
                         hasErrors = true;
                     }
                 }
-
             } else {
                 // Filter and collect all files that match the inputFileExtension
                 List<Resource> matchingFiles;
@@ -160,17 +165,14 @@ public class PipelineProcessor {
                                                             .anyMatch(file.getFilename()::endsWith))
                                     .collect(Collectors.toList());
                 }
-
                 // Check if there are matching files
                 if (!matchingFiles.isEmpty()) {
                     // Create a new MultiValueMap for the request body
                     MultiValueMap<String, Object> body = new LinkedMultiValueMap<>();
-
                     // Add all matching files to the body
                     for (Resource file : matchingFiles) {
                         body.add("fileInput", file);
                     }
-
                     for (Entry<String, Object> entry : parameters.entrySet()) {
                         if (entry.getValue() instanceof List) {
                             List<?> list = (List<?>) entry.getValue();
@@ -181,9 +183,7 @@ public class PipelineProcessor {
                             body.add(entry.getKey(), entry.getValue());
                         }
                     }
-
                     ResponseEntity<byte[]> response = sendWebRequest(url, body);
-
                     // Handle the response
                     if (response.getStatusCode().equals(HttpStatus.OK)) {
                         processOutputFiles(operation, response, newOutputFiles);
@@ -208,48 +208,22 @@ public class PipelineProcessor {
         if (hasErrors) {
             log.error("Errors occurred during processing. Log: {}", logStream.toString());
         }
-
         return outputFiles;
     }
 
     private ResponseEntity<byte[]> sendWebRequest(String url, MultiValueMap<String, Object> body) {
         RestTemplate restTemplate = new RestTemplate();
-
         // Set up headers, including API key
-
         HttpHeaders headers = new HttpHeaders();
         String apiKey = getApiKeyForUser();
         headers.add("X-API-KEY", apiKey);
         headers.setContentType(MediaType.MULTIPART_FORM_DATA);
-
         // Create HttpEntity with the body and headers
         HttpEntity<MultiValueMap<String, Object>> entity = new HttpEntity<>(body, headers);
-
         // Make the request to the REST endpoint
         return restTemplate.exchange(url, HttpMethod.POST, entity, byte[].class);
     }
 
-    public static String removeTrailingNaming(String filename) {
-        // Splitting filename into name and extension
-        int dotIndex = filename.lastIndexOf(".");
-        if (dotIndex == -1) {
-            // No extension found
-            return filename;
-        }
-        String name = filename.substring(0, dotIndex);
-        String extension = filename.substring(dotIndex);
-
-        // Finding the last underscore
-        int underscoreIndex = name.lastIndexOf("_");
-        if (underscoreIndex == -1) {
-            // No underscore found
-            return filename;
-        }
-
-        // Removing the last part and reattaching the extension
-        return name.substring(0, underscoreIndex) + extension;
-    }
-
     private List<Resource> processOutputFiles(
             String operation, ResponseEntity<byte[]> response, List<Resource> newOutputFiles)
             throws IOException {
@@ -259,13 +233,11 @@ public class PipelineProcessor {
             // If the operation is "auto-rename", generate a new filename.
             // This is a simple example of generating a filename using current timestamp.
             // Modify as per your needs.
-
             newFilename = extractFilename(response);
         } else {
             // Otherwise, keep the original filename.
             newFilename = removeTrailingNaming(extractFilename(response));
         }
-
         // Check if the response body is a zip file
         if (isZip(response.getBody())) {
             // Unzip the file and add all the files to the new output files
@@ -273,6 +245,7 @@ public class PipelineProcessor {
         } else {
             Resource outputResource =
                     new ByteArrayResource(response.getBody()) {
+
                         @Override
                         public String getFilename() {
                             return newFilename;
@@ -280,16 +253,14 @@ public class PipelineProcessor {
                     };
             newOutputFiles.add(outputResource);
         }
-
         return newOutputFiles;
     }
 
     public String extractFilename(ResponseEntity<byte[]> response) {
-        String filename = "default-filename.ext"; // Default filename if not found
-
+        // Default filename if not found
+        String filename = "default-filename.ext";
         HttpHeaders headers = response.getHeaders();
         String contentDisposition = headers.getFirst(HttpHeaders.CONTENT_DISPOSITION);
-
         if (contentDisposition != null && !contentDisposition.isEmpty()) {
             String[] parts = contentDisposition.split(";");
             for (String part : parts) {
@@ -297,12 +268,10 @@ public class PipelineProcessor {
                     // Extracts filename and removes quotes if present
                     filename = part.split("=")[1].trim().replace("\"", "");
                     filename = URLDecoder.decode(filename, StandardCharsets.UTF_8);
-
                     break;
                 }
             }
         }
-
         return filename;
     }
 
@@ -311,16 +280,15 @@ public class PipelineProcessor {
             log.info("No files");
             return null;
         }
-
         List<Resource> outputFiles = new ArrayList<>();
-
         for (File file : files) {
             Path path = Paths.get(file.getAbsolutePath());
-            log.info("Reading file: " + path); // debug statement
-
+            // debug statement
+            log.info("Reading file: " + path);
             if (Files.exists(path)) {
                 Resource fileResource =
                         new ByteArrayResource(Files.readAllBytes(path)) {
+
                             @Override
                             public String getFilename() {
                                 return file.getName();
@@ -340,12 +308,11 @@ public class PipelineProcessor {
             log.info("No files");
             return null;
         }
-
         List<Resource> outputFiles = new ArrayList<>();
-
         for (MultipartFile file : files) {
             Resource fileResource =
                     new ByteArrayResource(file.getBytes()) {
+
                         @Override
                         public String getFilename() {
                             return Filenames.toSimpleFileName(file.getOriginalFilename());
@@ -361,7 +328,6 @@ public class PipelineProcessor {
         if (data == null || data.length < 4) {
             return false;
         }
-
         // Check the first four bytes of the data against the standard zip magic number
         return data[0] == 0x50 && data[1] == 0x4B && data[2] == 0x03 && data[3] == 0x04;
     }
@@ -369,29 +335,25 @@ public class PipelineProcessor {
     private List<Resource> unzip(byte[] data) throws IOException {
         log.info("Unzipping data of length: {}", data.length);
         List<Resource> unzippedFiles = new ArrayList<>();
-
         try (ByteArrayInputStream bais = new ByteArrayInputStream(data);
                 ZipInputStream zis = ZipSecurity.createHardenedInputStream(bais)) {
-
             ZipEntry entry;
             while ((entry = zis.getNextEntry()) != null) {
                 ByteArrayOutputStream baos = new ByteArrayOutputStream();
                 byte[] buffer = new byte[1024];
                 int count;
-
                 while ((count = zis.read(buffer)) != -1) {
                     baos.write(buffer, 0, count);
                 }
-
                 final String filename = entry.getName();
                 Resource fileResource =
                         new ByteArrayResource(baos.toByteArray()) {
+
                             @Override
                             public String getFilename() {
                                 return filename;
                             }
                         };
-
                 // If the unzipped file is a zip file, unzip it
                 if (isZip(baos.toByteArray())) {
                     log.info("File {} is a zip file. Unzipping...", filename);
@@ -401,7 +363,6 @@ public class PipelineProcessor {
                 }
             }
         }
-
         log.info("Unzipping completed. {} files were unzipped.", unzippedFiles.size());
         return unzippedFiles;
     }

src/main/java/stirling/software/SPDF/controller/api/security/CertSignController.java

@@ -1,20 +1,9 @@
 package stirling.software.SPDF.controller.api.security;
 
-import java.awt.Color;
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.File;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.OutputStream;
+import java.awt.*;
+import java.io.*;
 import java.nio.file.Files;
-import java.security.KeyStore;
-import java.security.KeyStoreException;
-import java.security.NoSuchAlgorithmException;
-import java.security.PrivateKey;
-import java.security.Security;
-import java.security.UnrecoverableKeyException;
+import java.security.*;
 import java.security.cert.Certificate;
 import java.security.cert.CertificateException;
 import java.security.cert.CertificateFactory;
@@ -91,6 +80,151 @@ public class CertSignController {
         Security.addProvider(new BouncyCastleProvider());
     }
 
+    private final CustomPDDocumentFactory pdfDocumentFactory;
+
+    @Autowired
+    public CertSignController(CustomPDDocumentFactory pdfDocumentFactory) {
+        this.pdfDocumentFactory = pdfDocumentFactory;
+    }
+
+    private static void sign(
+            CustomPDDocumentFactory pdfDocumentFactory,
+            byte[] input,
+            OutputStream output,
+            CreateSignature instance,
+            Boolean showSignature,
+            Integer pageNumber,
+            String name,
+            String location,
+            String reason,
+            Boolean showLogo) {
+        try (PDDocument doc = pdfDocumentFactory.load(input)) {
+            PDSignature signature = new PDSignature();
+            signature.setFilter(PDSignature.FILTER_ADOBE_PPKLITE);
+            signature.setSubFilter(PDSignature.SUBFILTER_ADBE_PKCS7_DETACHED);
+            signature.setName(name);
+            signature.setLocation(location);
+            signature.setReason(reason);
+            signature.setSignDate(Calendar.getInstance());
+
+            if (showSignature) {
+                SignatureOptions signatureOptions = new SignatureOptions();
+                signatureOptions.setVisualSignature(
+                        instance.createVisibleSignature(doc, signature, pageNumber, showLogo));
+                signatureOptions.setPage(pageNumber);
+
+                doc.addSignature(signature, instance, signatureOptions);
+
+            } else {
+                doc.addSignature(signature, instance);
+            }
+            doc.saveIncremental(output);
+        } catch (Exception e) {
+            log.error("exception", e);
+        }
+    }
+
+    @PostMapping(consumes = "multipart/form-data", value = "/cert-sign")
+    @Operation(
+            summary = "Sign PDF with a Digital Certificate",
+            description =
+                    "This endpoint accepts a PDF file, a digital certificate and related information to sign"
+                            + " the PDF. It then returns the digitally signed PDF file. Input:PDF Output:PDF"
+                            + " Type:SISO")
+    public ResponseEntity<byte[]> signPDFWithCert(@ModelAttribute SignPDFWithCertRequest request)
+            throws Exception {
+        MultipartFile pdf = request.getFileInput();
+        String certType = request.getCertType();
+        MultipartFile privateKeyFile = request.getPrivateKeyFile();
+        MultipartFile certFile = request.getCertFile();
+        MultipartFile p12File = request.getP12File();
+        MultipartFile jksfile = request.getJksFile();
+        String password = request.getPassword();
+        Boolean showSignature = request.isShowSignature();
+        String reason = request.getReason();
+        String location = request.getLocation();
+        String name = request.getName();
+        Integer pageNumber = request.getPageNumber() - 1;
+        Boolean showLogo = request.isShowLogo();
+
+        if (certType == null) {
+            throw new IllegalArgumentException("Cert type must be provided");
+        }
+
+        KeyStore ks = null;
+
+        switch (certType) {
+            case "PEM":
+                ks = KeyStore.getInstance("JKS");
+                ks.load(null);
+                PrivateKey privateKey = getPrivateKeyFromPEM(privateKeyFile.getBytes(), password);
+                Certificate cert = (Certificate) getCertificateFromPEM(certFile.getBytes());
+                ks.setKeyEntry(
+                        "alias", privateKey, password.toCharArray(), new Certificate[] {cert});
+                break;
+            case "PKCS12":
+                ks = KeyStore.getInstance("PKCS12");
+                ks.load(p12File.getInputStream(), password.toCharArray());
+                break;
+            case "JKS":
+                ks = KeyStore.getInstance("JKS");
+                ks.load(jksfile.getInputStream(), password.toCharArray());
+                break;
+            default:
+                throw new IllegalArgumentException("Invalid cert type: " + certType);
+        }
+
+        CreateSignature createSignature = new CreateSignature(ks, password.toCharArray());
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        sign(
+                pdfDocumentFactory,
+                pdf.getBytes(),
+                baos,
+                createSignature,
+                showSignature,
+                pageNumber,
+                name,
+                location,
+                reason,
+                showLogo);
+        return WebResponseUtils.boasToWebResponse(
+                baos,
+                Filenames.toSimpleFileName(pdf.getOriginalFilename()).replaceFirst("[.][^.]+$", "")
+                        + "_signed.pdf");
+    }
+
+    private PrivateKey getPrivateKeyFromPEM(byte[] pemBytes, String password)
+            throws IOException, OperatorCreationException, PKCSException {
+        try (PEMParser pemParser =
+                new PEMParser(new InputStreamReader(new ByteArrayInputStream(pemBytes)))) {
+            Object pemObject = pemParser.readObject();
+            JcaPEMKeyConverter converter = new JcaPEMKeyConverter().setProvider("BC");
+            PrivateKeyInfo pkInfo;
+            if (pemObject instanceof PKCS8EncryptedPrivateKeyInfo) {
+                InputDecryptorProvider decProv =
+                        new JceOpenSSLPKCS8DecryptorProviderBuilder().build(password.toCharArray());
+                pkInfo = ((PKCS8EncryptedPrivateKeyInfo) pemObject).decryptPrivateKeyInfo(decProv);
+            } else if (pemObject instanceof PEMEncryptedKeyPair) {
+                PEMDecryptorProvider decProv =
+                        new JcePEMDecryptorProviderBuilder().build(password.toCharArray());
+                pkInfo =
+                        ((PEMEncryptedKeyPair) pemObject)
+                                .decryptKeyPair(decProv)
+                                .getPrivateKeyInfo();
+            } else {
+                pkInfo = ((PEMKeyPair) pemObject).getPrivateKeyInfo();
+            }
+            return converter.getPrivateKey(pkInfo);
+        }
+    }
+
+    private Certificate getCertificateFromPEM(byte[] pemBytes)
+            throws IOException, CertificateException {
+        try (ByteArrayInputStream bis = new ByteArrayInputStream(pemBytes)) {
+            return CertificateFactory.getInstance("X.509").generateCertificate(bis);
+        }
+    }
+
     class CreateSignature extends CreateSignatureBase {
         File logoFile;
 
@@ -198,149 +332,4 @@ public class CertSignController {
             }
         }
     }
-
-    private final CustomPDDocumentFactory pdfDocumentFactory;
-
-    @Autowired
-    public CertSignController(CustomPDDocumentFactory pdfDocumentFactory) {
-        this.pdfDocumentFactory = pdfDocumentFactory;
-    }
-
-    @PostMapping(consumes = "multipart/form-data", value = "/cert-sign")
-    @Operation(
-            summary = "Sign PDF with a Digital Certificate",
-            description =
-                    "This endpoint accepts a PDF file, a digital certificate and related information to sign"
-                            + " the PDF. It then returns the digitally signed PDF file. Input:PDF Output:PDF"
-                            + " Type:SISO")
-    public ResponseEntity<byte[]> signPDFWithCert(@ModelAttribute SignPDFWithCertRequest request)
-            throws Exception {
-        MultipartFile pdf = request.getFileInput();
-        String certType = request.getCertType();
-        MultipartFile privateKeyFile = request.getPrivateKeyFile();
-        MultipartFile certFile = request.getCertFile();
-        MultipartFile p12File = request.getP12File();
-        MultipartFile jksfile = request.getJksFile();
-        String password = request.getPassword();
-        Boolean showSignature = request.isShowSignature();
-        String reason = request.getReason();
-        String location = request.getLocation();
-        String name = request.getName();
-        Integer pageNumber = request.getPageNumber() - 1;
-        Boolean showLogo = request.isShowLogo();
-
-        if (certType == null) {
-            throw new IllegalArgumentException("Cert type must be provided");
-        }
-
-        KeyStore ks = null;
-
-        switch (certType) {
-            case "PEM":
-                ks = KeyStore.getInstance("JKS");
-                ks.load(null);
-                PrivateKey privateKey = getPrivateKeyFromPEM(privateKeyFile.getBytes(), password);
-                Certificate cert = (Certificate) getCertificateFromPEM(certFile.getBytes());
-                ks.setKeyEntry(
-                        "alias", privateKey, password.toCharArray(), new Certificate[] {cert});
-                break;
-            case "PKCS12":
-                ks = KeyStore.getInstance("PKCS12");
-                ks.load(p12File.getInputStream(), password.toCharArray());
-                break;
-            case "JKS":
-                ks = KeyStore.getInstance("JKS");
-                ks.load(jksfile.getInputStream(), password.toCharArray());
-                break;
-            default:
-                throw new IllegalArgumentException("Invalid cert type: " + certType);
-        }
-
-        CreateSignature createSignature = new CreateSignature(ks, password.toCharArray());
-        ByteArrayOutputStream baos = new ByteArrayOutputStream();
-        sign(
-                pdfDocumentFactory,
-                pdf.getBytes(),
-                baos,
-                createSignature,
-                showSignature,
-                pageNumber,
-                name,
-                location,
-                reason,
-                showLogo);
-        return WebResponseUtils.boasToWebResponse(
-                baos,
-                Filenames.toSimpleFileName(pdf.getOriginalFilename()).replaceFirst("[.][^.]+$", "")
-                        + "_signed.pdf");
-    }
-
-    private static void sign(
-            CustomPDDocumentFactory pdfDocumentFactory,
-            byte[] input,
-            OutputStream output,
-            CreateSignature instance,
-            Boolean showSignature,
-            Integer pageNumber,
-            String name,
-            String location,
-            String reason,
-            Boolean showLogo) {
-        try (PDDocument doc = pdfDocumentFactory.load(input)) {
-            PDSignature signature = new PDSignature();
-            signature.setFilter(PDSignature.FILTER_ADOBE_PPKLITE);
-            signature.setSubFilter(PDSignature.SUBFILTER_ADBE_PKCS7_DETACHED);
-            signature.setName(name);
-            signature.setLocation(location);
-            signature.setReason(reason);
-            signature.setSignDate(Calendar.getInstance());
-
-            if (showSignature) {
-                SignatureOptions signatureOptions = new SignatureOptions();
-                signatureOptions.setVisualSignature(
-                        instance.createVisibleSignature(doc, signature, pageNumber, showLogo));
-                signatureOptions.setPage(pageNumber);
-
-                doc.addSignature(signature, instance, signatureOptions);
-
-            } else {
-                doc.addSignature(signature, instance);
-            }
-            doc.saveIncremental(output);
-        } catch (Exception e) {
-            log.error("exception", e);
-        }
-    }
-
-    private PrivateKey getPrivateKeyFromPEM(byte[] pemBytes, String password)
-            throws IOException, OperatorCreationException, PKCSException {
-        try (PEMParser pemParser =
-                new PEMParser(new InputStreamReader(new ByteArrayInputStream(pemBytes)))) {
-            Object pemObject = pemParser.readObject();
-            JcaPEMKeyConverter converter = new JcaPEMKeyConverter().setProvider("BC");
-            PrivateKeyInfo pkInfo;
-            if (pemObject instanceof PKCS8EncryptedPrivateKeyInfo) {
-                InputDecryptorProvider decProv =
-                        new JceOpenSSLPKCS8DecryptorProviderBuilder().build(password.toCharArray());
-                pkInfo = ((PKCS8EncryptedPrivateKeyInfo) pemObject).decryptPrivateKeyInfo(decProv);
-            } else if (pemObject instanceof PEMEncryptedKeyPair) {
-                PEMDecryptorProvider decProv =
-                        new JcePEMDecryptorProviderBuilder().build(password.toCharArray());
-                pkInfo =
-                        ((PEMEncryptedKeyPair) pemObject)
-                                .decryptKeyPair(decProv)
-                                .getPrivateKeyInfo();
-            } else {
-                pkInfo = ((PEMKeyPair) pemObject).getPrivateKeyInfo();
-            }
-            return converter.getPrivateKey(pkInfo);
-        }
-    }
-
-    private Certificate getCertificateFromPEM(byte[] pemBytes)
-            throws IOException, CertificateException {
-        try (ByteArrayInputStream bis = new ByteArrayInputStream(pemBytes)) {
-            return CertificateFactory.getInstance("X.509").generateCertificate(bis);
-        }
-    }
 }

src/main/java/stirling/software/SPDF/controller/api/security/GetInfoOnPDF.java

@@ -4,25 +4,13 @@ import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.nio.charset.StandardCharsets;
 import java.text.SimpleDateFormat;
-import java.util.Calendar;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
+import java.util.*;
 
 import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.cos.COSInputStream;
 import org.apache.pdfbox.cos.COSName;
 import org.apache.pdfbox.cos.COSString;
-import org.apache.pdfbox.pdmodel.PDDocument;
-import org.apache.pdfbox.pdmodel.PDDocumentCatalog;
-import org.apache.pdfbox.pdmodel.PDDocumentInformation;
-import org.apache.pdfbox.pdmodel.PDDocumentNameDictionary;
-import org.apache.pdfbox.pdmodel.PDEmbeddedFilesNameTreeNode;
-import org.apache.pdfbox.pdmodel.PDJavascriptNameTreeNode;
-import org.apache.pdfbox.pdmodel.PDPage;
-import org.apache.pdfbox.pdmodel.PDResources;
+import org.apache.pdfbox.pdmodel.*;
 import org.apache.pdfbox.pdmodel.common.PDMetadata;
 import org.apache.pdfbox.pdmodel.common.PDRectangle;
 import org.apache.pdfbox.pdmodel.common.PDStream;
@@ -83,6 +71,48 @@ public class GetInfoOnPDF {
 
     static ObjectMapper objectMapper = new ObjectMapper();
 
+    private static void addOutlinesToArray(PDOutlineItem outline, ArrayNode arrayNode) {
+        if (outline == null) return;
+
+        ObjectNode outlineNode = objectMapper.createObjectNode();
+        outlineNode.put("Title", outline.getTitle());
+        // You can add other properties if needed
+        arrayNode.add(outlineNode);
+
+        PDOutlineItem child = outline.getFirstChild();
+        while (child != null) {
+            addOutlinesToArray(child, arrayNode);
+            child = child.getNextSibling();
+        }
+    }
+
+    public static boolean checkForStandard(PDDocument document, String standardKeyword) {
+        // Check XMP Metadata
+        try {
+            PDMetadata pdMetadata = document.getDocumentCatalog().getMetadata();
+            if (pdMetadata != null) {
+                COSInputStream metaStream = pdMetadata.createInputStream();
+                DomXmpParser domXmpParser = new DomXmpParser();
+                XMPMetadata xmpMeta = domXmpParser.parse(metaStream);
+
+                ByteArrayOutputStream baos = new ByteArrayOutputStream();
+                new XmpSerializer().serialize(xmpMeta, baos, true);
+                String xmpString = new String(baos.toByteArray(), StandardCharsets.UTF_8);
+
+                if (xmpString.contains(standardKeyword)) {
+                    return true;
+                }
+            }
+        } catch (
+                Exception
+                        e) { // Catching general exception for brevity, ideally you'd catch specific
+            // exceptions.
+            log.error("exception", e);
+        }
+
+        return false;
+    }
+
     @PostMapping(consumes = "multipart/form-data", value = "/get-info-on-pdf")
     @Operation(summary = "Summary here", description = "desc. Input:PDF Output:JSON Type:SISO")
     public ResponseEntity<byte[]> getPdfInfo(@ModelAttribute PDFFile request) throws IOException {
@@ -606,21 +636,6 @@ public class GetInfoOnPDF {
         return state ? "Allowed" : "Not Allowed";
     }
 
-    private static void addOutlinesToArray(PDOutlineItem outline, ArrayNode arrayNode) {
-        if (outline == null) return;
-
-        ObjectNode outlineNode = objectMapper.createObjectNode();
-        outlineNode.put("Title", outline.getTitle());
-        // You can add other properties if needed
-        arrayNode.add(outlineNode);
-
-        PDOutlineItem child = outline.getFirstChild();
-        while (child != null) {
-            addOutlinesToArray(child, arrayNode);
-            child = child.getNextSibling();
-        }
-    }
-
     public String getPageOrientation(double width, double height) {
         if (width > height) {
             return "Landscape";
@@ -678,33 +693,6 @@ public class GetInfoOnPDF {
         return dimensionInfo;
     }
 
-    public static boolean checkForStandard(PDDocument document, String standardKeyword) {
-        // Check XMP Metadata
-        try {
-            PDMetadata pdMetadata = document.getDocumentCatalog().getMetadata();
-            if (pdMetadata != null) {
-                COSInputStream metaStream = pdMetadata.createInputStream();
-                DomXmpParser domXmpParser = new DomXmpParser();
-                XMPMetadata xmpMeta = domXmpParser.parse(metaStream);
-
-                ByteArrayOutputStream baos = new ByteArrayOutputStream();
-                new XmpSerializer().serialize(xmpMeta, baos, true);
-                String xmpString = new String(baos.toByteArray(), StandardCharsets.UTF_8);
-
-                if (xmpString.contains(standardKeyword)) {
-                    return true;
-                }
-            }
-        } catch (
-                Exception
-                        e) { // Catching general exception for brevity, ideally you'd catch specific
-            // exceptions.
-            log.error("exception", e);
-        }
-
-        return false;
-    }
-
     public ArrayNode exploreStructureTree(List<Object> nodes) {
         ArrayNode elementsArray = objectMapper.createArrayNode();
         if (nodes != null) {

src/main/java/stirling/software/SPDF/controller/api/security/RedactController.java

@@ -1,6 +1,6 @@
 package stirling.software.SPDF.controller.api.security;
 
-import java.awt.Color;
+import java.awt.*;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.util.List;

src/main/java/stirling/software/SPDF/controller/api/security/SanitizeController.java

@@ -4,17 +4,9 @@ import java.io.IOException;
 
 import org.apache.pdfbox.cos.COSDictionary;
 import org.apache.pdfbox.cos.COSName;
-import org.apache.pdfbox.pdmodel.PDDocument;
-import org.apache.pdfbox.pdmodel.PDDocumentCatalog;
-import org.apache.pdfbox.pdmodel.PDPage;
-import org.apache.pdfbox.pdmodel.PDPageTree;
-import org.apache.pdfbox.pdmodel.PDResources;
+import org.apache.pdfbox.pdmodel.*;
 import org.apache.pdfbox.pdmodel.common.PDMetadata;
-import org.apache.pdfbox.pdmodel.interactive.action.PDAction;
-import org.apache.pdfbox.pdmodel.interactive.action.PDActionJavaScript;
-import org.apache.pdfbox.pdmodel.interactive.action.PDActionLaunch;
-import org.apache.pdfbox.pdmodel.interactive.action.PDActionURI;
-import org.apache.pdfbox.pdmodel.interactive.action.PDFormFieldAdditionalActions;
+import org.apache.pdfbox.pdmodel.interactive.action.*;
 import org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotation;
 import org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotationLink;
 import org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotationWidget;

src/main/java/stirling/software/SPDF/controller/api/security/ValidateSignatureController.java

@@ -14,11 +14,7 @@ import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.interactive.digitalsignature.PDSignature;
 import org.bouncycastle.cert.X509CertificateHolder;
 import org.bouncycastle.cert.jcajce.JcaX509CertificateConverter;
-import org.bouncycastle.cms.CMSProcessable;
-import org.bouncycastle.cms.CMSProcessableByteArray;
-import org.bouncycastle.cms.CMSSignedData;
-import org.bouncycastle.cms.SignerInformation;
-import org.bouncycastle.cms.SignerInformationStore;
+import org.bouncycastle.cms.*;
 import org.bouncycastle.cms.jcajce.JcaSimpleSignerInfoVerifierBuilder;
 import org.bouncycastle.util.Store;
 import org.springframework.beans.factory.annotation.Autowired;

src/main/java/stirling/software/SPDF/controller/api/security/WatermarkController.java

@@ -1,6 +1,6 @@
 package stirling.software.SPDF.controller.api.security;
 
-import java.awt.Color;
+import java.awt.*;
 import java.awt.image.BufferedImage;
 import java.io.File;
 import java.io.FileOutputStream;

src/main/java/stirling/software/SPDF/controller/web/AccountWebController.java

@@ -5,7 +5,6 @@ import java.time.temporal.ChronoUnit;
 import java.util.*;
 import java.util.stream.Collectors;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.security.core.Authentication;
 import org.springframework.security.core.userdetails.UserDetails;
@@ -38,24 +37,30 @@ import stirling.software.SPDF.repository.UserRepository;
 @Tag(name = "Account Security", description = "Account Security APIs")
 public class AccountWebController {
 
-    @Autowired ApplicationProperties applicationProperties;
-    @Autowired SessionPersistentRegistry sessionPersistentRegistry;
+    private final ApplicationProperties applicationProperties;
 
-    @Autowired
-    private UserRepository userRepository; // Assuming you have a repository for user operations
+    private final SessionPersistentRegistry sessionPersistentRegistry;
+
+    private final UserRepository // Assuming you have a repository for user operations
+            userRepository;
+
+    public AccountWebController(
+            ApplicationProperties applicationProperties,
+            SessionPersistentRegistry sessionPersistentRegistry,
+            UserRepository userRepository) {
+        this.applicationProperties = applicationProperties;
+        this.sessionPersistentRegistry = sessionPersistentRegistry;
+        this.userRepository = userRepository;
+    }
 
     @GetMapping("/login")
     public String login(HttpServletRequest request, Model model, Authentication authentication) {
-
         // If the user is already authenticated, redirect them to the home page.
         if (authentication != null && authentication.isAuthenticated()) {
             return "redirect:/";
         }
-
         Map<String, String> providerList = new HashMap<>();
-
         Security securityProps = applicationProperties.getSecurity();
-
         OAUTH2 oauth = securityProps.getOauth2();
         if (oauth != null) {
             if (oauth.getEnabled()) {
@@ -70,14 +75,12 @@ public class AccountWebController {
                                 "/oauth2/authorization/" + google.getName(),
                                 google.getClientName());
                     }
-
                     GithubProvider github = client.getGithub();
                     if (github.isSettingsValid()) {
                         providerList.put(
                                 "/oauth2/authorization/" + github.getName(),
                                 github.getClientName());
                     }
-
                     KeycloakProvider keycloak = client.getKeycloak();
                     if (keycloak.isSettingsValid()) {
                         providerList.put(
@@ -87,7 +90,6 @@ public class AccountWebController {
                 }
             }
         }
-
         SAML2 saml2 = securityProps.getSaml2();
         if (securityProps.isSaml2Activ()
                 && applicationProperties.getSystem().getEnableAlphaFunctionality()) {
@@ -98,16 +100,12 @@ public class AccountWebController {
                 .entrySet()
                 .removeIf(entry -> entry.getKey() == null || entry.getValue() == null);
         model.addAttribute("providerlist", providerList);
-
         model.addAttribute("loginMethod", securityProps.getLoginMethod());
         boolean altLogin = providerList.size() > 0 ? securityProps.isAltLogin() : false;
         model.addAttribute("altLogin", altLogin);
-
         model.addAttribute("currentPage", "login");
-
         String error = request.getParameter("error");
         if (error != null) {
-
             switch (error) {
                 case "badcredentials":
                     error = "login.invalid";
@@ -121,12 +119,10 @@ public class AccountWebController {
                 default:
                     break;
             }
-
             model.addAttribute("error", error);
         }
         String erroroauth = request.getParameter("erroroauth");
         if (erroroauth != null) {
-
             switch (erroroauth) {
                 case "oauth2AutoCreateDisabled":
                     erroroauth = "login.oauth2AutoCreateDisabled";
@@ -178,18 +174,14 @@ public class AccountWebController {
                 default:
                     break;
             }
-
             model.addAttribute("erroroauth", erroroauth);
         }
         if (request.getParameter("messageType") != null) {
-
             model.addAttribute("messageType", "changedCredsMessage");
         }
         if (request.getParameter("logout") != null) {
-
             model.addAttribute("logoutMessage", "You have been logged out.");
         }
-
         return "login";
     }
 
@@ -200,14 +192,11 @@ public class AccountWebController {
         List<User> allUsers = userRepository.findAll();
         Iterator<User> iterator = allUsers.iterator();
         Map<String, String> roleDetails = Role.getAllRoleDetails();
-
         // Map to store session information and user activity status
         Map<String, Boolean> userSessions = new HashMap<>();
         Map<String, Date> userLastRequest = new HashMap<>();
-
         int activeUsers = 0;
         int disabledUsers = 0;
-
         while (iterator.hasNext()) {
             User user = iterator.next();
             if (user != null) {
@@ -215,22 +204,20 @@ public class AccountWebController {
                     if (authority.getAuthority().equals(Role.INTERNAL_API_USER.getRoleId())) {
                         iterator.remove();
                         roleDetails.remove(Role.INTERNAL_API_USER.getRoleId());
-                        break; // Break out of the inner loop once the user is removed
+                        // Break out of the inner loop once the user is removed
+                        break;
                     }
                 }
-
                 // Determine the user's session status and last request time
                 int maxInactiveInterval = sessionPersistentRegistry.getMaxInactiveInterval();
                 boolean hasActiveSession = false;
                 Date lastRequest = null;
-
                 Optional<SessionEntity> latestSession =
                         sessionPersistentRegistry.findLatestSession(user.getUsername());
                 if (latestSession.isPresent()) {
                     SessionEntity sessionEntity = latestSession.get();
                     Date lastAccessedTime = sessionEntity.getLastRequest();
                     Instant now = Instant.now();
-
                     // Calculate session expiration and update session status accordingly
                     Instant expirationTime =
                             lastAccessedTime
@@ -242,16 +229,14 @@ public class AccountWebController {
                     } else {
                         hasActiveSession = !sessionEntity.isExpired();
                     }
-
                     lastRequest = sessionEntity.getLastRequest();
                 } else {
                     hasActiveSession = false;
-                    lastRequest = new Date(0); // No session, set default last request time
+                    // No session, set default last request time
+                    lastRequest = new Date(0);
                 }
-
                 userSessions.put(user.getUsername(), hasActiveSession);
                 userLastRequest.put(user.getUsername(), lastRequest);
-
                 if (hasActiveSession) {
                     activeUsers++;
                 }
@@ -260,7 +245,6 @@ public class AccountWebController {
                 }
             }
         }
-
         // Sort users by active status and last request date
         List<User> sortedUsers =
                 allUsers.stream()
@@ -268,7 +252,6 @@ public class AccountWebController {
                                 (u1, u2) -> {
                                     boolean u1Active = userSessions.get(u1.getUsername());
                                     boolean u2Active = userSessions.get(u2.getUsername());
-
                                     if (u1Active && !u2Active) {
                                         return -1;
                                     } else if (!u1Active && u2Active) {
@@ -284,9 +267,7 @@ public class AccountWebController {
                                     }
                                 })
                         .collect(Collectors.toList());
-
         String messageType = request.getParameter("messageType");
-
         String deleteMessage = null;
         if (messageType != null) {
             switch (messageType) {
@@ -300,7 +281,6 @@ public class AccountWebController {
                     break;
             }
             model.addAttribute("deleteMessage", deleteMessage);
-
             String addMessage = null;
             switch (messageType) {
                 case "usernameExists":
@@ -317,7 +297,6 @@ public class AccountWebController {
             }
             model.addAttribute("addMessage", addMessage);
         }
-
         String changeMessage = null;
         if (messageType != null) {
             switch (messageType) {
@@ -336,7 +315,6 @@ public class AccountWebController {
             }
             model.addAttribute("changeMessage", changeMessage);
         }
-
         model.addAttribute("users", sortedUsers);
         model.addAttribute("currentUsername", authentication.getName());
         model.addAttribute("roleDetails", roleDetails);
@@ -357,21 +335,17 @@ public class AccountWebController {
         if (authentication != null && authentication.isAuthenticated()) {
             Object principal = authentication.getPrincipal();
             String username = null;
-
             if (principal instanceof UserDetails) {
                 // Cast the principal object to UserDetails
                 UserDetails userDetails = (UserDetails) principal;
-
                 // Retrieve username and other attributes
                 username = userDetails.getUsername();
-
                 // Add oAuth2 Login attributes to the model
                 model.addAttribute("oAuth2Login", false);
             }
             if (principal instanceof OAuth2User) {
                 // Cast the principal object to OAuth2User
                 OAuth2User userDetails = (OAuth2User) principal;
-
                 // Retrieve username and other attributes
                 username =
                         userDetails.getAttribute(
@@ -383,22 +357,21 @@ public class AccountWebController {
                 // Cast the principal object to OAuth2User
                 CustomSaml2AuthenticatedPrincipal userDetails =
                         (CustomSaml2AuthenticatedPrincipal) principal;
-
                 // Retrieve username and other attributes
                 username = userDetails.getName();
                 // Add oAuth2 Login attributes to the model
                 model.addAttribute("oAuth2Login", true);
             }
-
             if (username != null) {
                 // Fetch user details from the database
                 Optional<User> user =
-                        userRepository.findByUsernameIgnoreCaseWithSettings(
-                                username); // Assuming findByUsername method exists
+                        userRepository
+                                .findByUsernameIgnoreCaseWithSettings( // Assuming findByUsername
+                                        // method exists
+                                        username);
                 if (!user.isPresent()) {
                     return "redirect:/error";
                 }
-
                 // Convert settings map to JSON string
                 ObjectMapper objectMapper = new ObjectMapper();
                 String settingsJson;
@@ -409,7 +382,6 @@ public class AccountWebController {
                     log.error("exception", e);
                     return "redirect:/error";
                 }
-
                 String messageType = request.getParameter("messageType");
                 if (messageType != null) {
                     switch (messageType) {
@@ -433,7 +405,6 @@ public class AccountWebController {
                     }
                     model.addAttribute("messageType", messageType);
                 }
-
                 // Add attributes to the model
                 model.addAttribute("username", username);
                 model.addAttribute("role", user.get().getRolesAsString());
@@ -456,23 +427,21 @@ public class AccountWebController {
         }
         if (authentication != null && authentication.isAuthenticated()) {
             Object principal = authentication.getPrincipal();
-
             if (principal instanceof UserDetails) {
                 // Cast the principal object to UserDetails
                 UserDetails userDetails = (UserDetails) principal;
-
                 // Retrieve username and other attributes
                 String username = userDetails.getUsername();
-
                 // Fetch user details from the database
                 Optional<User> user =
-                        userRepository.findByUsernameIgnoreCase(
-                                username); // Assuming findByUsername method exists
+                        userRepository
+                                .findByUsernameIgnoreCase( // Assuming findByUsername method exists
+                                        username);
                 if (!user.isPresent()) {
                     // Handle error appropriately
-                    return "redirect:/error"; // Example redirection in case of error
+                    // Example redirection in case of error
+                    return "redirect:/error";
                 }
-
                 String messageType = request.getParameter("messageType");
                 if (messageType != null) {
                     switch (messageType) {
@@ -493,7 +462,6 @@ public class AccountWebController {
                     }
                     model.addAttribute("messageType", messageType);
                 }
-
                 // Add attributes to the model
                 model.addAttribute("username", username);
             }

src/main/java/stirling/software/SPDF/controller/web/DatabaseWebController.java

@@ -2,7 +2,6 @@ package stirling.software.SPDF.controller.web;
 
 import java.util.List;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.security.core.Authentication;
 import org.springframework.stereotype.Controller;
@@ -19,25 +18,25 @@ import stirling.software.SPDF.utils.FileInfo;
 @Tag(name = "Database Management", description = "Database management and security APIs")
 public class DatabaseWebController {
 
-    @Autowired private DatabaseBackupHelper databaseBackupHelper;
+    private final DatabaseBackupHelper databaseBackupHelper;
+
+    public DatabaseWebController(DatabaseBackupHelper databaseBackupHelper) {
+        this.databaseBackupHelper = databaseBackupHelper;
+    }
 
     @PreAuthorize("hasRole('ROLE_ADMIN')")
     @GetMapping("/database")
     public String database(HttpServletRequest request, Model model, Authentication authentication) {
         String error = request.getParameter("error");
         String confirmed = request.getParameter("infoMessage");
-
         if (error != null) {
             model.addAttribute("error", error);
         } else if (confirmed != null) {
             model.addAttribute("infoMessage", confirmed);
         }
-
         List<FileInfo> backupList = databaseBackupHelper.getBackupList();
         model.addAttribute("backupFiles", backupList);
-
         model.addAttribute("databaseVersion", databaseBackupHelper.getH2Version());
-
         return "database";
     }
 }

src/main/java/stirling/software/SPDF/controller/web/GeneralWebController.java

@@ -6,12 +6,7 @@ import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Objects;
+import java.util.*;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
@@ -39,31 +34,41 @@ import stirling.software.SPDF.service.SignatureService;
 @Slf4j
 public class GeneralWebController {
 
+    private static final String SIGNATURE_BASE_PATH = "customFiles/static/signatures/";
+    private static final String ALL_USERS_FOLDER = "ALL_USERS";
+    private final SignatureService signatureService;
+    private final UserServiceInterface userService;
+    private final ResourceLoader resourceLoader;
+
+    public GeneralWebController(
+            SignatureService signatureService,
+            @Autowired(required = false) UserServiceInterface userService,
+            ResourceLoader resourceLoader) {
+        this.signatureService = signatureService;
+        this.userService = userService;
+        this.resourceLoader = resourceLoader;
+    }
+
     @GetMapping("/pipeline")
     @Hidden
     public String pipelineForm(Model model) {
         model.addAttribute("currentPage", "pipeline");
-
         List<String> pipelineConfigs = new ArrayList<>();
         List<Map<String, String>> pipelineConfigsWithNames = new ArrayList<>();
-
         if (new File("./pipeline/defaultWebUIConfigs/").exists()) {
             try (Stream<Path> paths = Files.walk(Paths.get("./pipeline/defaultWebUIConfigs/"))) {
                 List<Path> jsonFiles =
                         paths.filter(Files::isRegularFile)
                                 .filter(p -> p.toString().endsWith(".json"))
                                 .collect(Collectors.toList());
-
                 for (Path jsonFile : jsonFiles) {
                     String content = Files.readString(jsonFile, StandardCharsets.UTF_8);
                     pipelineConfigs.add(content);
                 }
-
                 for (String config : pipelineConfigs) {
                     Map<String, Object> jsonContent =
                             new ObjectMapper()
                                     .readValue(config, new TypeReference<Map<String, Object>>() {});
-
                     String name = (String) jsonContent.get("name");
                     if (name == null || name.length() < 1) {
                         String filename =
@@ -78,7 +83,6 @@ public class GeneralWebController {
                     configWithName.put("name", name);
                     pipelineConfigsWithNames.add(configWithName);
                 }
-
             } catch (IOException e) {
                 log.error("exception", e);
             }
@@ -90,9 +94,7 @@ public class GeneralWebController {
             pipelineConfigsWithNames.add(configWithName);
         }
         model.addAttribute("pipelineConfigsWithNames", pipelineConfigsWithNames);
-
         model.addAttribute("pipelineConfigs", pipelineConfigs);
-
         return "pipeline";
     }
 
@@ -173,14 +175,6 @@ public class GeneralWebController {
         return "split-pdfs";
     }
 
-    private static final String SIGNATURE_BASE_PATH = "customFiles/static/signatures/";
-    private static final String ALL_USERS_FOLDER = "ALL_USERS";
-
-    @Autowired private SignatureService signatureService;
-
-    @Autowired(required = false)
-    private UserServiceInterface userService;
-
     @GetMapping("/sign")
     @Hidden
     public String signForm(Model model) {
@@ -188,10 +182,8 @@ public class GeneralWebController {
         if (userService != null) {
             username = userService.getCurrentUsername();
         }
-
         // Get signatures from both personal and ALL_USERS folders
         List<SignatureFile> signatures = signatureService.getAvailableSignatures(username);
-
         model.addAttribute("currentPage", "sign");
         model.addAttribute("fonts", getFontNames());
         model.addAttribute("signatures", signatures);
@@ -226,17 +218,12 @@ public class GeneralWebController {
         return "overlay-pdf";
     }
 
-    @Autowired private ResourceLoader resourceLoader;
-
     private List<FontResource> getFontNames() {
         List<FontResource> fontNames = new ArrayList<>();
-
         // Extract font names from classpath
         fontNames.addAll(getFontNamesFromLocation("classpath:static/fonts/*.woff2"));
-
         // Extract font names from external directory
         fontNames.addAll(getFontNamesFromLocation("file:customFiles/static/fonts/*"));
-
         return fontNames;
     }
 
@@ -283,13 +270,38 @@ public class GeneralWebController {
             case "svg":
                 return "svg";
             default:
-                return ""; // or throw an exception if an unexpected extension is encountered
+                // or throw an exception if an unexpected extension is encountered
+                return "";
         }
     }
 
+    @GetMapping("/crop")
+    @Hidden
+    public String cropForm(Model model) {
+        model.addAttribute("currentPage", "crop");
+        return "crop";
+    }
+
+    @GetMapping("/auto-split-pdf")
+    @Hidden
+    public String autoSPlitPDFForm(Model model) {
+        model.addAttribute("currentPage", "auto-split-pdf");
+        return "auto-split-pdf";
+    }
+
+    @GetMapping("/remove-image-pdf")
+    @Hidden
+    public String removeImagePdfForm(Model model) {
+        model.addAttribute("currentPage", "remove-image-pdf");
+        return "remove-image-pdf";
+    }
+
     public class FontResource {
+
         private String name;
+
         private String extension;
+
         private String type;
 
         public FontResource(String name, String extension) {
@@ -322,25 +334,4 @@ public class GeneralWebController {
             this.type = type;
         }
     }
-
-    @GetMapping("/crop")
-    @Hidden
-    public String cropForm(Model model) {
-        model.addAttribute("currentPage", "crop");
-        return "crop";
-    }
-
-    @GetMapping("/auto-split-pdf")
-    @Hidden
-    public String autoSPlitPDFForm(Model model) {
-        model.addAttribute("currentPage", "auto-split-pdf");
-        return "auto-split-pdf";
-    }
-
-    @GetMapping("/remove-image-pdf")
-    @Hidden
-    public String removeImagePdfForm(Model model) {
-        model.addAttribute("currentPage", "remove-image-pdf");
-        return "remove-image-pdf";
-    }
 }

src/main/java/stirling/software/SPDF/controller/web/HomeWebController.java

@@ -6,7 +6,6 @@ import java.nio.charset.StandardCharsets;
 import java.util.List;
 import java.util.Map;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.core.io.ClassPathResource;
 import org.springframework.core.io.Resource;
 import org.springframework.http.MediaType;
@@ -28,6 +27,12 @@ import stirling.software.SPDF.model.Dependency;
 @Slf4j
 public class HomeWebController {
 
+    private final ApplicationProperties applicationProperties;
+
+    public HomeWebController(ApplicationProperties applicationProperties) {
+        this.applicationProperties = applicationProperties;
+    }
+
     @GetMapping("/about")
     @Hidden
     public String gameForm(Model model) {
@@ -69,8 +74,6 @@ public class HomeWebController {
         return "redirect:/";
     }
 
-    @Autowired ApplicationProperties applicationProperties;
-
     @GetMapping(value = "/robots.txt", produces = MediaType.TEXT_PLAIN_VALUE)
     @ResponseBody
     @Hidden

src/main/java/stirling/software/SPDF/controller/web/MetricsController.java

@@ -5,7 +5,6 @@ import java.time.LocalDateTime;
 import java.util.*;
 import java.util.stream.Collectors;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -30,12 +29,18 @@ import stirling.software.SPDF.model.ApplicationProperties;
 @Slf4j
 public class MetricsController {
 
-    @Autowired ApplicationProperties applicationProperties;
+    private final ApplicationProperties applicationProperties;
 
     private final MeterRegistry meterRegistry;
 
     private boolean metricsEnabled;
 
+    public MetricsController(
+            ApplicationProperties applicationProperties, MeterRegistry meterRegistry) {
+        this.applicationProperties = applicationProperties;
+        this.meterRegistry = meterRegistry;
+    }
+
     @PostConstruct
     public void init() {
         Boolean metricsEnabled = applicationProperties.getMetrics().getEnabled();
@@ -43,11 +48,6 @@ public class MetricsController {
         this.metricsEnabled = metricsEnabled;
     }
 
-    @Autowired
-    public MetricsController(MeterRegistry meterRegistry) {
-        this.meterRegistry = meterRegistry;
-    }
-
     @GetMapping("/status")
     @Operation(
             summary = "Application status and version",
@@ -57,7 +57,6 @@ public class MetricsController {
         if (!metricsEnabled) {
             return ResponseEntity.status(HttpStatus.FORBIDDEN).body("This endpoint is disabled.");
         }
-
         Map<String, String> status = new HashMap<>();
         status.put("status", "UP");
         status.put("version", getClass().getPackage().getImplementationVersion());
@@ -236,7 +235,6 @@ public class MetricsController {
                             String uri = counter.getId().getTag("uri");
                             counts.merge(uri, counter.count(), Double::sum);
                         });
-
         List<EndpointCount> result =
                 counts.entrySet().stream()
                         .map(entry -> new EndpointCount(entry.getKey(), entry.getValue()))
@@ -271,7 +269,6 @@ public class MetricsController {
     private List<EndpointCount> getUniqueUserCounts(String method) {
         log.info("Getting unique user counts for method: {}", method);
         Map<String, Set<String>> uniqueUsers = new HashMap<>();
-
         meterRegistry
                 .find("http.requests")
                 .tag("method", method)
@@ -284,19 +281,37 @@ public class MetricsController {
                                 uniqueUsers.computeIfAbsent(uri, k -> new HashSet<>()).add(session);
                             }
                         });
-
         List<EndpointCount> result =
                 uniqueUsers.entrySet().stream()
                         .map(entry -> new EndpointCount(entry.getKey(), entry.getValue().size()))
                         .sorted(Comparator.comparing(EndpointCount::getCount).reversed())
                         .collect(Collectors.toList());
-
         log.info("Found {} endpoints with unique user counts", result.size());
         return result;
     }
 
+    @GetMapping("/uptime")
+    public ResponseEntity<?> getUptime() {
+        if (!metricsEnabled) {
+            return ResponseEntity.status(HttpStatus.FORBIDDEN).body("This endpoint is disabled.");
+        }
+        LocalDateTime now = LocalDateTime.now();
+        Duration uptime = Duration.between(StartupApplicationListener.startTime, now);
+        return ResponseEntity.ok(formatDuration(uptime));
+    }
+
+    private String formatDuration(Duration duration) {
+        long days = duration.toDays();
+        long hours = duration.toHoursPart();
+        long minutes = duration.toMinutesPart();
+        long seconds = duration.toSecondsPart();
+        return String.format("%dd %dh %dm %ds", days, hours, minutes, seconds);
+    }
+
     public static class EndpointCount {
+
         private String endpoint;
+
         private double count;
 
         public EndpointCount(String endpoint, double count) {
@@ -320,23 +335,4 @@ public class MetricsController {
             this.count = count;
         }
     }
-
-    @GetMapping("/uptime")
-    public ResponseEntity<?> getUptime() {
-        if (!metricsEnabled) {
-            return ResponseEntity.status(HttpStatus.FORBIDDEN).body("This endpoint is disabled.");
-        }
-
-        LocalDateTime now = LocalDateTime.now();
-        Duration uptime = Duration.between(StartupApplicationListener.startTime, now);
-        return ResponseEntity.ok(formatDuration(uptime));
-    }
-
-    private String formatDuration(Duration duration) {
-        long days = duration.toDays();
-        long hours = duration.toHoursPart();
-        long minutes = duration.toMinutesPart();
-        long seconds = duration.toSecondsPart();
-        return String.format("%dd %dh %dm %ds", days, hours, minutes, seconds);
-    }
 }

src/main/java/stirling/software/SPDF/controller/web/OtherWebController.java

@@ -6,7 +6,6 @@ import java.util.Collections;
 import java.util.List;
 import java.util.stream.Collectors;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -22,7 +21,11 @@ import stirling.software.SPDF.utils.CheckProgramInstall;
 @Tag(name = "Misc", description = "Miscellaneous APIs")
 public class OtherWebController {
 
-    @Autowired ApplicationProperties applicationProperties;
+    private final ApplicationProperties applicationProperties;
+
+    public OtherWebController(ApplicationProperties applicationProperties) {
+        this.applicationProperties = applicationProperties;
+    }
 
     @GetMapping("/compress-pdf")
     @Hidden

src/main/java/stirling/software/SPDF/controller/web/SignatureController.java

@@ -18,10 +18,16 @@ import stirling.software.SPDF.service.SignatureService;
 @RequestMapping("/api/v1/general")
 public class SignatureController {
 
-    @Autowired private SignatureService signatureService;
+    private final SignatureService signatureService;
 
-    @Autowired(required = false)
-    private UserServiceInterface userService;
+    private final UserServiceInterface userService;
+
+    public SignatureController(
+            SignatureService signatureService,
+            @Autowired(required = false) UserServiceInterface userService) {
+        this.signatureService = signatureService;
+        this.userService = userService;
+    }
 
     @GetMapping("/sign/{fileName}")
     public ResponseEntity<byte[]> getSignature(@PathVariable(name = "fileName") String fileName)
@@ -30,15 +36,14 @@ public class SignatureController {
         if (userService != null) {
             username = userService.getCurrentUsername();
         }
-
         // Verify access permission
         if (!signatureService.hasAccessToFile(username, fileName)) {
             return ResponseEntity.status(HttpStatus.FORBIDDEN).build();
         }
-
         byte[] imageBytes = signatureService.getSignatureBytes(username, fileName);
         return ResponseEntity.ok()
-                .contentType(MediaType.IMAGE_JPEG) // Adjust based on file type
+                .contentType( // Adjust based on file type
+                        MediaType.IMAGE_JPEG)
                 .body(imageBytes);
     }
 }

src/main/java/stirling/software/SPDF/model/ApplicationProperties.java

@@ -79,6 +79,23 @@ public class ApplicationProperties {
             return saml2.getEnabled() || oauth2.getEnabled();
         }
 
+        public boolean isUserPass() {
+            return (loginMethod.equalsIgnoreCase(LoginMethods.NORMAL.toString())
+                    || loginMethod.equalsIgnoreCase(LoginMethods.ALL.toString()));
+        }
+
+        public boolean isOauth2Activ() {
+            return (oauth2 != null
+                    && oauth2.getEnabled()
+                    && !loginMethod.equalsIgnoreCase(LoginMethods.NORMAL.toString()));
+        }
+
+        public boolean isSaml2Activ() {
+            return (saml2 != null
+                    && saml2.getEnabled()
+                    && !loginMethod.equalsIgnoreCase(LoginMethods.NORMAL.toString()));
+        }
+
         public enum LoginMethods {
             ALL("all"),
             NORMAL("normal"),
@@ -97,23 +114,6 @@ public class ApplicationProperties {
             }
         }
 
-        public boolean isUserPass() {
-            return (loginMethod.equalsIgnoreCase(LoginMethods.NORMAL.toString())
-                    || loginMethod.equalsIgnoreCase(LoginMethods.ALL.toString()));
-        }
-
-        public boolean isOauth2Activ() {
-            return (oauth2 != null
-                    && oauth2.getEnabled()
-                    && !loginMethod.equalsIgnoreCase(LoginMethods.NORMAL.toString()));
-        }
-
-        public boolean isSaml2Activ() {
-            return (saml2 != null
-                    && saml2.getEnabled()
-                    && !loginMethod.equalsIgnoreCase(LoginMethods.NORMAL.toString()));
-        }
-
         @Data
         public static class InitialLogin {
             private String username;

src/main/java/stirling/software/SPDF/model/Authority.java

@@ -2,14 +2,7 @@ package stirling.software.SPDF.model;
 
 import java.io.Serializable;
 
-import jakarta.persistence.Column;
-import jakarta.persistence.Entity;
-import jakarta.persistence.GeneratedValue;
-import jakarta.persistence.GenerationType;
-import jakarta.persistence.Id;
-import jakarta.persistence.JoinColumn;
-import jakarta.persistence.ManyToOne;
-import jakarta.persistence.Table;
+import jakarta.persistence.*;
 
 @Entity
 @Table(name = "authorities")
@@ -17,14 +10,6 @@ public class Authority implements Serializable {
 
     private static final long serialVersionUID = 1L;
 
-    public Authority() {}
-
-    public Authority(String authority, User user) {
-        this.authority = authority;
-        this.user = user;
-        user.getAuthorities().add(this);
-    }
-
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
@@ -36,6 +21,14 @@ public class Authority implements Serializable {
     @JoinColumn(name = "user_id")
     private User user;
 
+    public Authority() {}
+
+    public Authority(String authority, User user) {
+        this.authority = authority;
+        this.user = user;
+        user.getAuthorities().add(this);
+    }
+
     public Long getId() {
         return id;
     }

src/main/java/stirling/software/SPDF/model/Role.java

@@ -40,22 +40,6 @@ public enum Role {
         this.roleName = roleName;
     }
 
-    public String getRoleId() {
-        return roleId;
-    }
-
-    public int getApiCallsPerDay() {
-        return apiCallsPerDay;
-    }
-
-    public int getWebCallsPerDay() {
-        return webCallsPerDay;
-    }
-
-    public String getRoleName() {
-        return roleName;
-    }
-
     public static String getRoleNameByRoleId(String roleId) {
         // Using the fromString method to get the Role enum based on the roleId
         Role role = fromString(roleId);
@@ -81,4 +65,20 @@ public enum Role {
         }
         throw new IllegalArgumentException("No Role defined for id: " + roleId);
     }
+
+    public String getRoleId() {
+        return roleId;
+    }
+
+    public int getApiCallsPerDay() {
+        return apiCallsPerDay;
+    }
+
+    public int getWebCallsPerDay() {
+        return webCallsPerDay;
+    }
+
+    public String getRoleName() {
+        return roleName;
+    }
 }

src/main/java/stirling/software/SPDF/model/User.java

@@ -111,14 +111,14 @@ public class User implements Serializable {
         this.enabled = enabled;
     }
 
-    public void setAuthenticationType(AuthenticationType authenticationType) {
-        this.authenticationType = authenticationType.toString().toLowerCase();
-    }
-
     public String getAuthenticationType() {
         return authenticationType;
     }
 
+    public void setAuthenticationType(AuthenticationType authenticationType) {
+        this.authenticationType = authenticationType.toString().toLowerCase();
+    }
+
     public Set<Authority> getAuthorities() {
         return authorities;
     }

src/main/java/stirling/software/SPDF/model/provider/GithubProvider.java

@@ -12,6 +12,10 @@ public class GithubProvider extends Provider {
     private static final String authorizationUri = "https://github.com/login/oauth/authorize";
     private static final String tokenUri = "https://github.com/login/oauth/access_token";
     private static final String userInfoUri = "https://api.github.com/user";
+    private String clientId;
+    private String clientSecret;
+    private Collection<String> scopes = new ArrayList<>();
+    private String useAsUsername = "login";
 
     public String getAuthorizationuri() {
         return authorizationUri;
@@ -25,11 +29,6 @@ public class GithubProvider extends Provider {
         return userInfoUri;
     }
 
-    private String clientId;
-    private String clientSecret;
-    private Collection<String> scopes = new ArrayList<>();
-    private String useAsUsername = "login";
-
     @Override
     public String getIssuer() {
         return new String();

src/main/java/stirling/software/SPDF/model/provider/GoogleProvider.java

@@ -13,6 +13,10 @@ public class GoogleProvider extends Provider {
     private static final String tokenUri = "https://www.googleapis.com/oauth2/v4/token";
     private static final String userInfoUri =
             "https://www.googleapis.com/oauth2/v3/userinfo?alt=json";
+    private String clientId;
+    private String clientSecret;
+    private Collection<String> scopes = new ArrayList<>();
+    private String useAsUsername = "email";
 
     public String getAuthorizationuri() {
         return authorizationUri;
@@ -26,11 +30,6 @@ public class GoogleProvider extends Provider {
         return userInfoUri;
     }
 
-    private String clientId;
-    private String clientSecret;
-    private Collection<String> scopes = new ArrayList<>();
-    private String useAsUsername = "email";
-
     @Override
     public String getIssuer() {
         return new String();

src/main/java/stirling/software/SPDF/pdf/TextFinder.java

@@ -21,16 +21,6 @@ public class TextFinder extends PDFTextStripper {
     private final boolean wholeWordSearch;
     private final List<PDFText> textOccurrences = new ArrayList<>();
 
-    private class MatchInfo {
-        int startIndex;
-        int matchLength;
-
-        MatchInfo(int startIndex, int matchLength) {
-            this.startIndex = startIndex;
-            this.matchLength = matchLength;
-        }
-    }
-
     public TextFinder(String searchText, boolean useRegex, boolean wholeWordSearch)
             throws IOException {
         this.searchText = searchText.toLowerCase();
@@ -103,4 +93,14 @@ public class TextFinder extends PDFTextStripper {
 
         return textOccurrences;
     }
+
+    private class MatchInfo {
+        int startIndex;
+        int matchLength;
+
+        MatchInfo(int startIndex, int matchLength) {
+            this.startIndex = startIndex;
+            this.matchLength = matchLength;
+        }
+    }
 }

src/main/java/stirling/software/SPDF/repository/JPATokenRepositoryImpl.java

@@ -2,7 +2,6 @@ package stirling.software.SPDF.repository;
 
 import java.util.Date;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.security.web.authentication.rememberme.PersistentRememberMeToken;
 import org.springframework.security.web.authentication.rememberme.PersistentTokenRepository;
 import org.springframework.transaction.annotation.Transactional;
@@ -11,7 +10,11 @@ import stirling.software.SPDF.model.PersistentLogin;
 
 public class JPATokenRepositoryImpl implements PersistentTokenRepository {
 
-    @Autowired private PersistentLoginRepository persistentLoginRepository;
+    private final PersistentLoginRepository persistentLoginRepository;
+
+    public JPATokenRepositoryImpl(PersistentLoginRepository persistentLoginRepository) {
+        this.persistentLoginRepository = persistentLoginRepository;
+    }
 
     @Override
     @Transactional

src/main/java/stirling/software/SPDF/service/CertificateValidationService.java

@@ -1,25 +1,10 @@
 package stirling.software.SPDF.service;
 
-import java.io.BufferedReader;
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.InputStream;
-import java.io.InputStreamReader;
+import java.io.*;
 import java.security.KeyStore;
 import java.security.KeyStoreException;
-import java.security.cert.CertPath;
-import java.security.cert.CertPathValidator;
-import java.security.cert.CertificateExpiredException;
-import java.security.cert.CertificateFactory;
-import java.security.cert.CertificateNotYetValidException;
-import java.security.cert.PKIXParameters;
-import java.security.cert.TrustAnchor;
-import java.security.cert.X509Certificate;
-import java.util.Arrays;
-import java.util.Enumeration;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
+import java.security.cert.*;
+import java.util.*;
 
 import org.springframework.stereotype.Service;
 

src/main/java/stirling/software/SPDF/service/PostHogService.java

@@ -6,11 +6,7 @@ import java.net.InetAddress;
 import java.net.NetworkInterface;
 import java.nio.file.Files;
 import java.nio.file.Paths;
-import java.util.Enumeration;
-import java.util.HashMap;
-import java.util.Locale;
-import java.util.Map;
-import java.util.TimeZone;
+import java.util.*;
 
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;

src/main/java/stirling/software/SPDF/utils/FileInfo.java

@@ -11,15 +11,14 @@ import lombok.Data;
 @AllArgsConstructor
 @Data
 public class FileInfo {
+    private static final DateTimeFormatter DATE_FORMATTER =
+            DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
     private String fileName;
     private String filePath;
     private LocalDateTime modificationDate;
     private long fileSize;
     private LocalDateTime creationDate;
 
-    private static final DateTimeFormatter DATE_FORMATTER =
-            DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
-
     // Converts the file path string to a Path object.
     public Path getFilePathAsPath() {
         return Paths.get(filePath);

src/main/java/stirling/software/SPDF/utils/FileToPdf.java

@@ -1,11 +1,6 @@
 package stirling.software.SPDF.utils;
 
-import java.io.ByteArrayInputStream;
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.FileWriter;
-import java.io.IOException;
-import java.io.UncheckedIOException;
+import java.io.*;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.FileVisitResult;
 import java.nio.file.Files;

src/main/java/stirling/software/SPDF/utils/GeneralUtils.java

@@ -4,18 +4,9 @@ import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.net.HttpURLConnection;
-import java.net.InetAddress;
-import java.net.MalformedURLException;
-import java.net.NetworkInterface;
-import java.net.URI;
-import java.net.URL;
+import java.net.*;
 import java.nio.charset.StandardCharsets;
-import java.nio.file.FileVisitResult;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.nio.file.SimpleFileVisitor;
+import java.nio.file.*;
 import java.nio.file.attribute.BasicFileAttributes;
 import java.security.MessageDigest;
 import java.util.ArrayList;

src/main/java/stirling/software/SPDF/utils/ImageProcessingUtils.java

@@ -1,11 +1,7 @@
 package stirling.software.SPDF.utils;
 
 import java.awt.geom.AffineTransform;
-import java.awt.image.AffineTransformOp;
-import java.awt.image.BufferedImage;
-import java.awt.image.DataBuffer;
-import java.awt.image.DataBufferByte;
-import java.awt.image.DataBufferInt;
+import java.awt.image.*;
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.ByteBuffer;

src/main/java/stirling/software/SPDF/utils/PdfUtils.java

@@ -126,82 +126,6 @@ public class PdfUtils {
         return pageText.contains(phrase);
     }
 
-    public boolean containsTextInFile(PDDocument pdfDocument, String text, String pagesToCheck)
-            throws IOException {
-        PDFTextStripper textStripper = new PDFTextStripper();
-        String pdfText = "";
-
-        if (pagesToCheck == null || "all".equals(pagesToCheck)) {
-            pdfText = textStripper.getText(pdfDocument);
-        } else {
-            // remove whitespaces
-            pagesToCheck = pagesToCheck.replaceAll("\\s+", "");
-
-            String[] splitPoints = pagesToCheck.split(",");
-            for (String splitPoint : splitPoints) {
-                if (splitPoint.contains("-")) {
-                    // Handle page ranges
-                    String[] range = splitPoint.split("-");
-                    int startPage = Integer.parseInt(range[0]);
-                    int endPage = Integer.parseInt(range[1]);
-
-                    for (int i = startPage; i <= endPage; i++) {
-                        textStripper.setStartPage(i);
-                        textStripper.setEndPage(i);
-                        pdfText += textStripper.getText(pdfDocument);
-                    }
-                } else {
-                    // Handle individual page
-                    int page = Integer.parseInt(splitPoint);
-                    textStripper.setStartPage(page);
-                    textStripper.setEndPage(page);
-                    pdfText += textStripper.getText(pdfDocument);
-                }
-            }
-        }
-
-        pdfDocument.close();
-
-        return pdfText.contains(text);
-    }
-
-    public boolean pageCount(PDDocument pdfDocument, int pageCount, String comparator)
-            throws IOException {
-        int actualPageCount = pdfDocument.getNumberOfPages();
-        pdfDocument.close();
-
-        switch (comparator.toLowerCase()) {
-            case "greater":
-                return actualPageCount > pageCount;
-            case "equal":
-                return actualPageCount == pageCount;
-            case "less":
-                return actualPageCount < pageCount;
-            default:
-                throw new IllegalArgumentException(
-                        "Invalid comparator. Only 'greater', 'equal', and 'less' are supported.");
-        }
-    }
-
-    public boolean pageSize(PDDocument pdfDocument, String expectedPageSize) throws IOException {
-        PDPage firstPage = pdfDocument.getPage(0);
-        PDRectangle mediaBox = firstPage.getMediaBox();
-
-        float actualPageWidth = mediaBox.getWidth();
-        float actualPageHeight = mediaBox.getHeight();
-
-        pdfDocument.close();
-
-        // Assumes the expectedPageSize is in the format "widthxheight", e.g. "595x842"
-        // for A4
-        String[] dimensions = expectedPageSize.split("x");
-        float expectedPageWidth = Float.parseFloat(dimensions[0]);
-        float expectedPageHeight = Float.parseFloat(dimensions[1]);
-
-        // Checks if the actual page size matches the expected page size
-        return actualPageWidth == expectedPageWidth && actualPageHeight == expectedPageHeight;
-    }
-
     public static byte[] convertFromPdf(
             byte[] inputStream,
             String imageType,
@@ -518,6 +442,82 @@ public class PdfUtils {
         return baos.toByteArray();
     }
 
+    public boolean containsTextInFile(PDDocument pdfDocument, String text, String pagesToCheck)
+            throws IOException {
+        PDFTextStripper textStripper = new PDFTextStripper();
+        String pdfText = "";
+
+        if (pagesToCheck == null || "all".equals(pagesToCheck)) {
+            pdfText = textStripper.getText(pdfDocument);
+        } else {
+            // remove whitespaces
+            pagesToCheck = pagesToCheck.replaceAll("\\s+", "");
+
+            String[] splitPoints = pagesToCheck.split(",");
+            for (String splitPoint : splitPoints) {
+                if (splitPoint.contains("-")) {
+                    // Handle page ranges
+                    String[] range = splitPoint.split("-");
+                    int startPage = Integer.parseInt(range[0]);
+                    int endPage = Integer.parseInt(range[1]);
+
+                    for (int i = startPage; i <= endPage; i++) {
+                        textStripper.setStartPage(i);
+                        textStripper.setEndPage(i);
+                        pdfText += textStripper.getText(pdfDocument);
+                    }
+                } else {
+                    // Handle individual page
+                    int page = Integer.parseInt(splitPoint);
+                    textStripper.setStartPage(page);
+                    textStripper.setEndPage(page);
+                    pdfText += textStripper.getText(pdfDocument);
+                }
+            }
+        }
+
+        pdfDocument.close();
+
+        return pdfText.contains(text);
+    }
+
+    public boolean pageCount(PDDocument pdfDocument, int pageCount, String comparator)
+            throws IOException {
+        int actualPageCount = pdfDocument.getNumberOfPages();
+        pdfDocument.close();
+
+        switch (comparator.toLowerCase()) {
+            case "greater":
+                return actualPageCount > pageCount;
+            case "equal":
+                return actualPageCount == pageCount;
+            case "less":
+                return actualPageCount < pageCount;
+            default:
+                throw new IllegalArgumentException(
+                        "Invalid comparator. Only 'greater', 'equal', and 'less' are supported.");
+        }
+    }
+
+    public boolean pageSize(PDDocument pdfDocument, String expectedPageSize) throws IOException {
+        PDPage firstPage = pdfDocument.getPage(0);
+        PDRectangle mediaBox = firstPage.getMediaBox();
+
+        float actualPageWidth = mediaBox.getWidth();
+        float actualPageHeight = mediaBox.getHeight();
+
+        pdfDocument.close();
+
+        // Assumes the expectedPageSize is in the format "widthxheight", e.g. "595x842"
+        // for A4
+        String[] dimensions = expectedPageSize.split("x");
+        float expectedPageWidth = Float.parseFloat(dimensions[0]);
+        float expectedPageHeight = Float.parseFloat(dimensions[1]);
+
+        // Checks if the actual page size matches the expected page size
+        return actualPageWidth == expectedPageWidth && actualPageHeight == expectedPageHeight;
+    }
+
     /** Key for storing the dimensions of a rendered image in a map. */
     private record PdfRenderSettingsKey(float mediaBoxWidth, float mediaBoxHeight, int rotation) {}
 

src/main/java/stirling/software/SPDF/utils/ProcessExecutor.java

@@ -1,10 +1,6 @@
 package stirling.software.SPDF.utils;
 
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.io.InterruptedIOException;
+import java.io.*;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.List;
@@ -21,20 +17,17 @@ import stirling.software.SPDF.model.ApplicationProperties;
 @Slf4j
 public class ProcessExecutor {
 
-    private static ApplicationProperties applicationProperties = new ApplicationProperties();
-
-    public enum Processes {
-        LIBRE_OFFICE,
-        PDFTOHTML,
-        PYTHON_OPENCV,
-        WEASYPRINT,
-        INSTALL_APP,
-        CALIBRE,
-        TESSERACT,
-        QPDF
-    }
-
     private static final Map<Processes, ProcessExecutor> instances = new ConcurrentHashMap<>();
+    private static ApplicationProperties applicationProperties = new ApplicationProperties();
+    private final Semaphore semaphore;
+    private final boolean liveUpdates;
+    private long timeoutDuration;
+
+    private ProcessExecutor(int semaphoreLimit, boolean liveUpdates, long timeout) {
+        this.semaphore = new Semaphore(semaphoreLimit);
+        this.liveUpdates = liveUpdates;
+        this.timeoutDuration = timeout;
+    }
 
     public static ProcessExecutor getInstance(Processes processType) {
         return getInstance(processType, true);
@@ -135,16 +128,6 @@ public class ProcessExecutor {
                 });
     }
 
-    private final Semaphore semaphore;
-    private final boolean liveUpdates;
-    private long timeoutDuration;
-
-    private ProcessExecutor(int semaphoreLimit, boolean liveUpdates, long timeout) {
-        this.semaphore = new Semaphore(semaphoreLimit);
-        this.liveUpdates = liveUpdates;
-        this.timeoutDuration = timeout;
-    }
-
     public ProcessExecutorResult runCommandWithOutputHandling(List<String> command)
             throws IOException, InterruptedException {
         return runCommandWithOutputHandling(command, null);
@@ -271,6 +254,17 @@ public class ProcessExecutor {
         return new ProcessExecutorResult(exitCode, messages);
     }
 
+    public enum Processes {
+        LIBRE_OFFICE,
+        PDFTOHTML,
+        PYTHON_OPENCV,
+        WEASYPRINT,
+        INSTALL_APP,
+        CALIBRE,
+        TESSERACT,
+        QPDF
+    }
+
     public class ProcessExecutorResult {
         int rc;
         String messages;

src/main/java/stirling/software/SPDF/utils/misc/CustomColorReplaceStrategy.java

@@ -14,7 +14,10 @@ import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.apache.pdfbox.pdmodel.PDPageContentStream;
 import org.apache.pdfbox.pdmodel.PDPageTree;
-import org.apache.pdfbox.pdmodel.font.*;
+import org.apache.pdfbox.pdmodel.font.PDFont;
+import org.apache.pdfbox.pdmodel.font.PDFontFactory;
+import org.apache.pdfbox.pdmodel.font.PDType1Font;
+import org.apache.pdfbox.pdmodel.font.Standard14Fonts;
 import org.apache.pdfbox.text.TextPosition;
 import org.springframework.core.io.InputStreamResource;
 import org.springframework.web.multipart.MultipartFile;

src/main/resources/application.properties

@@ -1,5 +1,4 @@
 multipart.enabled=true
-
 logging.level.org.springframework=WARN
 logging.level.org.hibernate=WARN
 logging.level.org.eclipse.jetty=WARN
@@ -8,52 +7,38 @@ logging.level.org.eclipse.jetty=WARN
 #logging.level.org.opensaml=DEBUG
 #logging.level.stirling.software.SPDF.config.security: DEBUG
 logging.level.com.zaxxer.hikari=WARN
-
 spring.jpa.open-in-view=false
-
 server.forward-headers-strategy=NATIVE
-
 server.error.path=/error
 server.error.whitelabel.enabled=false
 server.error.include-stacktrace=always
 server.error.include-exception=true
 server.error.include-message=always
-
 #logging.level.org.springframework.web=DEBUG
 #logging.level.org.springframework=DEBUG
 #logging.level.org.springframework.security=DEBUG
-
 spring.servlet.multipart.max-file-size=2000MB
 spring.servlet.multipart.max-request-size=2000MB
-
 server.servlet.session.tracking-modes=cookie
 server.servlet.context-path=${SYSTEM_ROOTURIPATH:/}
-
 spring.devtools.restart.enabled=true
 spring.devtools.livereload.enabled=true
 spring.devtools.restart.exclude=stirling.software.SPDF.config.security/**
-
 spring.thymeleaf.encoding=UTF-8
-
 spring.web.resources.mime-mappings.webmanifest=application/manifest+json
-
 spring.mvc.async.request-timeout=${SYSTEM_CONNECTIONTIMEOUTMILLISECONDS:1200000}
 #spring.thymeleaf.prefix=file:/customFiles/templates/,classpath:/templates/
 #spring.thymeleaf.cache=false
-
 spring.datasource.url=jdbc:h2:file:./configs/stirling-pdf-DB-2.3.232;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE
 spring.datasource.driver-class-name=org.h2.Driver
 spring.datasource.username=sa
 spring.datasource.password=
 spring.h2.console.enabled=false
 spring.jpa.hibernate.ddl-auto=update
-server.servlet.session.timeout: 30m
+server.servlet.session.timeout:30m
 # Change the default URL path for OpenAPI JSON
 springdoc.api-docs.path=/v1/api-docs
-
 # Set the URL of the OpenAPI JSON for the Swagger UI
 springdoc.swagger-ui.url=/v1/api-docs
-
-
 posthog.api.key=phc_fiR65u5j6qmXTYL56MNrLZSWqLaDW74OrZH0Insd2xq
 posthog.host=https://eu.i.posthog.com

src/main/resources/logback.xml

@@ -11,8 +11,8 @@
     <appender name="AUTHLOG" class="ch.qos.logback.core.rolling.RollingFileAppender">
         <file>logs/invalid-auths.log</file>
         <encoder>
-		    <pattern>%d %p %c{1} [%thread] %m%n</pattern>
-		</encoder>
+            <pattern>%d %p %c{1} [%thread] %m%n</pattern>
+        </encoder>
 
         <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
             <!-- daily rollover and keep 7 days' worth of history -->
@@ -21,12 +21,12 @@
         </rollingPolicy>
     </appender>
 
-	<!-- Rolling File Appender -->
+    <!-- Rolling File Appender -->
     <appender name="GENERAL" class="ch.qos.logback.core.rolling.RollingFileAppender">
         <file>logs/info.log</file>
         <encoder>
-		    <pattern>%d %p %c{1} [%thread] %m%n</pattern>
-		</encoder>
+            <pattern>%d %p %c{1} [%thread] %m%n</pattern>
+        </encoder>
 
         <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
             <!-- daily rollover and keep 7 days' worth of history -->
@@ -43,7 +43,8 @@
     </root>
 
     <!-- Specific Logger -->
-    <logger name="stirling.software.SPDF.config.security.CustomAuthenticationFailureHandler" level="ERROR" additivity="false">
+    <logger name="stirling.software.SPDF.config.security.CustomAuthenticationFailureHandler" level="ERROR"
+            additivity="false">
         <appender-ref ref="CONSOLE"/>
         <appender-ref ref="AUTHLOG"/>
     </logger>

src/test/java/stirling/software/SPDF/SPdfApplicationTest.java

@@ -15,6 +15,7 @@ import org.mockito.Mock;
 import org.mockito.junit.jupiter.MockitoExtension;
 import org.springframework.core.env.Environment;
 
+import stirling.software.SPDF.UI.WebBrowser;
 import stirling.software.SPDF.model.ApplicationProperties;
 
 @ExtendWith(MockitoExtension.class)
@@ -25,13 +26,12 @@ public class SPdfApplicationTest {
 
     @Mock
     private ApplicationProperties applicationProperties;
-
+    
     @InjectMocks
     private SPdfApplication sPdfApplication;
 
     @BeforeEach
     public void setUp() {
-        sPdfApplication = new SPdfApplication();
         sPdfApplication.setServerPortStatic("8080");
     }
 

src/test/java/stirling/software/SPDF/controller/api/RearrangePagesPDFControllerTest.java

@@ -8,6 +8,7 @@ import java.util.Arrays;
 import java.util.List;
 
 import static org.junit.jupiter.api.Assertions.*;
+
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 import stirling.software.SPDF.service.CustomPDDocumentFactory;
@@ -16,7 +17,10 @@ import java.util.Arrays;
 import java.util.List;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.assertNotNull;import org.junit.jupiter.api.BeforeEach;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+import org.junit.jupiter.api.BeforeEach;
+
 class RearrangePagesPDFControllerTest {
 
     @Mock
@@ -53,7 +57,7 @@ class RearrangePagesPDFControllerTest {
         List<Integer> newPageOrder = sut.oddEvenMerge(totalNumberOfPages);
 
         assertNotNull(newPageOrder, "Returning null instead of page order list");
-        assertEquals(Arrays.asList(0,3,1,4,2), newPageOrder, "Page order doesn't match");
+        assertEquals(Arrays.asList(0, 3, 1, 4, 2), newPageOrder, "Page order doesn't match");
     }
 
     /**
@@ -66,13 +70,14 @@ class RearrangePagesPDFControllerTest {
         List<Integer> newPageOrder = sut.oddEvenMerge(totalNumberOfPages);
 
         assertNotNull(newPageOrder, "Returning null instead of page order list");
-        assertEquals(Arrays.asList(0,3,1,4,2,5), newPageOrder, "Page order doesn't match");
+        assertEquals(Arrays.asList(0, 3, 1, 4, 2, 5), newPageOrder, "Page order doesn't match");
     }
 
     /**
      * Tests the behavior of the oddEvenMerge method with multiple test cases of multiple pages.
+     *
      * @param totalNumberOfPages The total number of pages in the document.
-     * @param expectedPageOrder The expected order of the pages after rearranging.
+     * @param expectedPageOrder  The expected order of the pages after rearranging.
      */
     @ParameterizedTest
     @CsvSource({

src/test/java/stirling/software/SPDF/controller/api/converters/ConvertWebsiteToPdfTest.java

@@ -4,13 +4,11 @@ import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
-import org.springframework.http.ResponseEntity;
-
-import stirling.software.SPDF.controller.api.RearrangePagesPDFController;
 import stirling.software.SPDF.model.api.converters.UrlToPdfRequest;
 import stirling.software.SPDF.service.CustomPDDocumentFactory;
 
-import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 public class ConvertWebsiteToPdfTest {
 

src/test/java/stirling/software/SPDF/utils/FileToPdfTest.java

@@ -1,12 +1,11 @@
 package stirling.software.SPDF.utils;
 
-import static org.junit.jupiter.api.Assertions.*;
+import org.junit.jupiter.api.Test;
+import stirling.software.SPDF.model.api.converters.HTMLToPdfRequest;
 
 import java.io.IOException;
 
-import org.junit.jupiter.api.Test;
-
-import stirling.software.SPDF.model.api.converters.HTMLToPdfRequest;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 public class FileToPdfTest {
 

src/test/java/stirling/software/SPDF/utils/GeneralUtilsTest.java

@@ -1,105 +1,108 @@
 package stirling.software.SPDF.utils;
 
-import static org.junit.jupiter.api.Assertions.*;
 import org.junit.jupiter.api.Test;
+
 import java.util.List;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 
 public class GeneralUtilsTest {
 
-	 
 
-	    @Test
-	    void testParsePageListWithAll() {
-	        List<Integer> result = GeneralUtils.parsePageList(new String[]{"all"}, 5, false);
-	        assertEquals(List.of(0, 1, 2, 3, 4), result, "'All' keyword should return all pages.");
-	    }
-	    
-	    @Test
-	    void testParsePageListWithAllOneBased() {
-	        List<Integer> result = GeneralUtils.parsePageList(new String[]{"all"}, 5, true);
-	        assertEquals(List.of(1, 2, 3, 4, 5), result, "'All' keyword should return all pages.");
-	    }
-	    
-	    @Test
-	    void nFunc() {
-	        List<Integer> result = GeneralUtils.parsePageList(new String[]{"n"}, 5, true);
-	        assertEquals(List.of(1, 2, 3, 4, 5), result, "'n' keyword should return all pages.");
-	    }
-	    
-	    @Test
-	    void nFuncAdvanced() {
-	        List<Integer> result = GeneralUtils.parsePageList(new String[]{"4n"}, 9, true);
-	        //skip 0 as not valid
-	        assertEquals(List.of(4,8), result, "'All' keyword should return all pages.");
-	    }
+    @Test
+    void testParsePageListWithAll() {
+        List<Integer> result = GeneralUtils.parsePageList(new String[]{"all"}, 5, false);
+        assertEquals(List.of(0, 1, 2, 3, 4), result, "'All' keyword should return all pages.");
+    }
 
-	    @Test
-	    void nFuncAdvancedZero() {
-	        List<Integer> result = GeneralUtils.parsePageList(new String[]{"4n"}, 9, false);
-	        //skip 0 as not valid
-	        assertEquals(List.of(3,7), result, "'All' keyword should return all pages.");
-	    }
-	    
-	    @Test
-	    void nFuncAdvanced2() {
-	        List<Integer> result = GeneralUtils.parsePageList(new String[]{"4n-1"}, 9, true);
-	        // skip -1 as not valid
-	        assertEquals(List.of(3,7), result, "4n-1 should do (0-1), (4-1), (8-1)");
-	    }
-	    
-	    @Test
-	    void nFuncAdvanced3() {
-	        List<Integer> result = GeneralUtils.parsePageList(new String[]{"4n+1"}, 9, true);
-	        assertEquals(List.of(1,5,9), result, "'All' keyword should return all pages.");
-	    }
-	    
-	    
-	    @Test
-	    void nFuncAdvanced4() {
-	        List<Integer> result = GeneralUtils.parsePageList(new String[]{"3+2n"}, 9, true);
-	        assertEquals(List.of(3,5,7,9), result, "'All' keyword should return all pages.");
-	    }
-	    
-	    @Test
-	    void nFuncAdvancedZerobased() {
-	        List<Integer> result = GeneralUtils.parsePageList(new String[]{"4n"}, 9, false);
-	        assertEquals(List.of(3,7), result, "'All' keyword should return all pages.");
-	    }
+    @Test
+    void testParsePageListWithAllOneBased() {
+        List<Integer> result = GeneralUtils.parsePageList(new String[]{"all"}, 5, true);
+        assertEquals(List.of(1, 2, 3, 4, 5), result, "'All' keyword should return all pages.");
+    }
 
-	    @Test
-	    void nFuncAdvanced2Zerobased() {
-	        List<Integer> result = GeneralUtils.parsePageList(new String[]{"4n-1"}, 9, false);
-	        assertEquals(List.of(2,6), result, "'All' keyword should return all pages.");
-	    }
-	    @Test
-	    void testParsePageListWithRangeOneBasedOutput() {
-	        List<Integer> result = GeneralUtils.parsePageList(new String[]{"1-3"}, 5, true);
-	        assertEquals(List.of(1, 2, 3), result, "Range should be parsed correctly.");
-	    }
+    @Test
+    void nFunc() {
+        List<Integer> result = GeneralUtils.parsePageList(new String[]{"n"}, 5, true);
+        assertEquals(List.of(1, 2, 3, 4, 5), result, "'n' keyword should return all pages.");
+    }
 
-	    
-	    @Test
-	    void testParsePageListWithRangeZeroBaseOutput() {
-	        List<Integer> result = GeneralUtils.parsePageList(new String[]{"1-3"}, 5, false);
-	        assertEquals(List.of(0, 1, 2), result, "Range should be parsed correctly.");
-	    }
-	    
-	    
-	    @Test
-	    void testParsePageListWithRangeOneBasedOutputFull() {
-	        List<Integer> result = GeneralUtils.parsePageList(new String[]{"1,3,7-8"}, 8, true);
-	        assertEquals(List.of(1, 3, 7,8), result, "Range should be parsed correctly.");
-	    }
+    @Test
+    void nFuncAdvanced() {
+        List<Integer> result = GeneralUtils.parsePageList(new String[]{"4n"}, 9, true);
+        //skip 0 as not valid
+        assertEquals(List.of(4, 8), result, "'All' keyword should return all pages.");
+    }
 
-	    @Test
-	    void testParsePageListWithRangeOneBasedOutputFullOutOfRange() {
-	        List<Integer> result = GeneralUtils.parsePageList(new String[]{"1,3,7-8"}, 5, true);
-	        assertEquals(List.of(1, 3), result, "Range should be parsed correctly.");
-	    }
-	    @Test
-	    void testParsePageListWithRangeZeroBaseOutputFull() {
-	        List<Integer> result = GeneralUtils.parsePageList(new String[]{"1,3,7-8"}, 8, false);
-	        assertEquals(List.of(0, 2, 6,7), result, "Range should be parsed correctly.");
-	    }
+    @Test
+    void nFuncAdvancedZero() {
+        List<Integer> result = GeneralUtils.parsePageList(new String[]{"4n"}, 9, false);
+        //skip 0 as not valid
+        assertEquals(List.of(3, 7), result, "'All' keyword should return all pages.");
+    }
+
+    @Test
+    void nFuncAdvanced2() {
+        List<Integer> result = GeneralUtils.parsePageList(new String[]{"4n-1"}, 9, true);
+        // skip -1 as not valid
+        assertEquals(List.of(3, 7), result, "4n-1 should do (0-1), (4-1), (8-1)");
+    }
+
+    @Test
+    void nFuncAdvanced3() {
+        List<Integer> result = GeneralUtils.parsePageList(new String[]{"4n+1"}, 9, true);
+        assertEquals(List.of(1, 5, 9), result, "'All' keyword should return all pages.");
+    }
+
+
+    @Test
+    void nFuncAdvanced4() {
+        List<Integer> result = GeneralUtils.parsePageList(new String[]{"3+2n"}, 9, true);
+        assertEquals(List.of(3, 5, 7, 9), result, "'All' keyword should return all pages.");
+    }
+
+    @Test
+    void nFuncAdvancedZerobased() {
+        List<Integer> result = GeneralUtils.parsePageList(new String[]{"4n"}, 9, false);
+        assertEquals(List.of(3, 7), result, "'All' keyword should return all pages.");
+    }
+
+    @Test
+    void nFuncAdvanced2Zerobased() {
+        List<Integer> result = GeneralUtils.parsePageList(new String[]{"4n-1"}, 9, false);
+        assertEquals(List.of(2, 6), result, "'All' keyword should return all pages.");
+    }
+
+    @Test
+    void testParsePageListWithRangeOneBasedOutput() {
+        List<Integer> result = GeneralUtils.parsePageList(new String[]{"1-3"}, 5, true);
+        assertEquals(List.of(1, 2, 3), result, "Range should be parsed correctly.");
+    }
+
+
+    @Test
+    void testParsePageListWithRangeZeroBaseOutput() {
+        List<Integer> result = GeneralUtils.parsePageList(new String[]{"1-3"}, 5, false);
+        assertEquals(List.of(0, 1, 2), result, "Range should be parsed correctly.");
+    }
+
+
+    @Test
+    void testParsePageListWithRangeOneBasedOutputFull() {
+        List<Integer> result = GeneralUtils.parsePageList(new String[]{"1,3,7-8"}, 8, true);
+        assertEquals(List.of(1, 3, 7, 8), result, "Range should be parsed correctly.");
+    }
+
+    @Test
+    void testParsePageListWithRangeOneBasedOutputFullOutOfRange() {
+        List<Integer> result = GeneralUtils.parsePageList(new String[]{"1,3,7-8"}, 5, true);
+        assertEquals(List.of(1, 3), result, "Range should be parsed correctly.");
+    }
+
+    @Test
+    void testParsePageListWithRangeZeroBaseOutputFull() {
+        List<Integer> result = GeneralUtils.parsePageList(new String[]{"1,3,7-8"}, 8, false);
+        assertEquals(List.of(0, 2, 6, 7), result, "Range should be parsed correctly.");
+    }
 }

src/test/java/stirling/software/SPDF/utils/ImageProcessingUtilsTest.java

@@ -2,8 +2,8 @@ package stirling.software.SPDF.utils;
 
 import org.junit.jupiter.api.Test;
 
+import java.awt.*;
 import java.awt.image.BufferedImage;
-import java.awt.Color;
 
 import static org.junit.jupiter.api.Assertions.*;
 
@@ -13,14 +13,14 @@ public class ImageProcessingUtilsTest {
     void testConvertColorTypeToGreyscale() {
         BufferedImage sourceImage = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
         fillImageWithColor(sourceImage, Color.RED);
-        
+
         BufferedImage convertedImage = ImageProcessingUtils.convertColorType(sourceImage, "greyscale");
 
         assertNotNull(convertedImage);
         assertEquals(BufferedImage.TYPE_BYTE_GRAY, convertedImage.getType());
         assertEquals(sourceImage.getWidth(), convertedImage.getWidth());
         assertEquals(sourceImage.getHeight(), convertedImage.getHeight());
-        
+
         // Check if a pixel is correctly converted to greyscale
         Color grey = new Color(convertedImage.getRGB(0, 0));
         assertEquals(grey.getRed(), grey.getGreen());
@@ -31,14 +31,14 @@ public class ImageProcessingUtilsTest {
     void testConvertColorTypeToBlackWhite() {
         BufferedImage sourceImage = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
         fillImageWithColor(sourceImage, Color.RED);
-        
+
         BufferedImage convertedImage = ImageProcessingUtils.convertColorType(sourceImage, "blackwhite");
 
         assertNotNull(convertedImage);
         assertEquals(BufferedImage.TYPE_BYTE_BINARY, convertedImage.getType());
         assertEquals(sourceImage.getWidth(), convertedImage.getWidth());
         assertEquals(sourceImage.getHeight(), convertedImage.getHeight());
-        
+
         // Check if a pixel is converted correctly (binary image will be either black or white)
         int rgb = convertedImage.getRGB(0, 0);
         assertTrue(rgb == Color.BLACK.getRGB() || rgb == Color.WHITE.getRGB());
@@ -48,7 +48,7 @@ public class ImageProcessingUtilsTest {
     void testConvertColorTypeToFullColor() {
         BufferedImage sourceImage = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
         fillImageWithColor(sourceImage, Color.RED);
-        
+
         BufferedImage convertedImage = ImageProcessingUtils.convertColorType(sourceImage, "fullcolor");
 
         assertNotNull(convertedImage);
@@ -59,7 +59,7 @@ public class ImageProcessingUtilsTest {
     void testConvertColorTypeInvalid() {
         BufferedImage sourceImage = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
         fillImageWithColor(sourceImage, Color.RED);
-        
+
         BufferedImage convertedImage = ImageProcessingUtils.convertColorType(sourceImage, "invalidtype");
 
         assertNotNull(convertedImage);

src/test/java/stirling/software/SPDF/utils/PdfUtilsTest.java

@@ -1,11 +1,12 @@
 package stirling.software.SPDF.utils;
 
-import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.cos.COSName;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.apache.pdfbox.pdmodel.PDResources;
+import org.apache.pdfbox.pdmodel.common.PDRectangle;
+import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
 import org.junit.jupiter.api.Test;
 import org.mockito.Mockito;
-import stirling.software.SPDF.model.PdfMetadata;
 
 import java.io.IOException;
 import java.util.Collections;
@@ -13,9 +14,6 @@ import java.util.HashSet;
 import java.util.Set;
 
 import static org.junit.jupiter.api.Assertions.*;
-import org.apache.pdfbox.pdmodel.common.PDRectangle;
-import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
-import org.apache.pdfbox.cos.COSName;
 
 public class PdfUtilsTest {
 

src/test/java/stirling/software/SPDF/utils/ProcessExecutorTest.java

@@ -1,13 +1,13 @@
 package stirling.software.SPDF.utils;
 
-import static org.junit.jupiter.api.Assertions.*;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
 
 public class ProcessExecutorTest {
 

src/test/java/stirling/software/SPDF/utils/RequestUriUtilsTest.java

@@ -1,10 +1,10 @@
 package stirling.software.SPDF.utils;
 
+import org.junit.jupiter.api.Test;
+
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
-import org.junit.jupiter.api.Test;
-
 public class RequestUriUtilsTest {
 
     @Test

src/test/java/stirling/software/SPDF/utils/WebResponseUtilsTest.java

@@ -1,10 +1,5 @@
 package stirling.software.SPDF.utils;
 
-import static org.junit.jupiter.api.Assertions.*;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.junit.jupiter.api.Test;
 import org.springframework.http.HttpHeaders;
@@ -13,6 +8,11 @@ import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.mock.web.MockMultipartFile;
 
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+import static org.junit.jupiter.api.Assertions.*;
+
 public class WebResponseUtilsTest {
 
     @Test
@@ -55,7 +55,7 @@ public class WebResponseUtilsTest {
             assertNotNull(headers);
             assertEquals(MediaType.TEXT_PLAIN, headers.getContentType());
             assertNotNull(headers.getContentDisposition());
-        
+
         } catch (IOException e) {
             fail("Exception thrown: " + e.getMessage());
         }
@@ -78,7 +78,7 @@ public class WebResponseUtilsTest {
             assertNotNull(headers);
             assertEquals(MediaType.TEXT_PLAIN, headers.getContentType());
             assertNotNull(headers.getContentDisposition());
-            
+
 
         } catch (IOException e) {
             fail("Exception thrown: " + e.getMessage());
@@ -102,7 +102,7 @@ public class WebResponseUtilsTest {
             assertNotNull(headers);
             assertEquals(MediaType.APPLICATION_PDF, headers.getContentType());
             assertNotNull(headers.getContentDisposition());
-            
+
 
         } catch (IOException e) {
             fail("Exception thrown: " + e.getMessage());