wip

common/src/main/java/stirling/software/common/util/EmlToPdf.java

@@ -19,14 +19,15 @@ import java.util.Map;
 import java.util.Properties;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
-
+import lombok.Data;
-import org.apache.pdfbox.cos.COSDictionary;
+import lombok.Getter;
-import org.apache.pdfbox.cos.COSName;
+import lombok.experimental.UtilityClass;
+import lombok.extern.slf4j.Slf4j;
 import org.apache.pdfbox.pdmodel.PDDocument;
-import org.apache.pdfbox.pdmodel.PDDocumentCatalog;
 import org.apache.pdfbox.pdmodel.PDDocumentNameDictionary;
 import org.apache.pdfbox.pdmodel.PDEmbeddedFilesNameTreeNode;
 import org.apache.pdfbox.pdmodel.PDPage;
+import org.apache.pdfbox.pdmodel.PageMode;
 import org.apache.pdfbox.pdmodel.common.PDRectangle;
 import org.apache.pdfbox.pdmodel.common.filespecification.PDComplexFileSpecification;
 import org.apache.pdfbox.pdmodel.common.filespecification.PDEmbeddedFile;
@@ -35,12 +36,8 @@ import org.apache.pdfbox.pdmodel.interactive.annotation.PDAppearanceDictionary;
 import org.apache.pdfbox.pdmodel.interactive.annotation.PDAppearanceStream;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
-
-import lombok.Data;
-import lombok.Getter;
-import lombok.experimental.UtilityClass;
-import lombok.extern.slf4j.Slf4j;
 import stirling.software.common.model.api.converters.EmlToPdfRequest;
+import static stirling.software.common.util.PDFAttachmentUtils.setCatalogViewerPreferences;
 
 @Slf4j
 @UtilityClass
@@ -1107,15 +1104,13 @@ public class EmlToPdf {
                             new PDEmbeddedFile(document, new ByteArrayInputStream(attachment.getData()));
                     embeddedFile.setSize(attachment.getData().length);
                     embeddedFile.setCreationDate(new GregorianCalendar());
-                    if (attachment.getContentType() != null) {
-                        embeddedFile.setSubtype(attachment.getContentType());
-                    }
 
                     // Create file specification
                     PDComplexFileSpecification fileSpec = new PDComplexFileSpecification();
                     fileSpec.setFile(uniqueFilename);
                     fileSpec.setEmbeddedFile(embeddedFile);
                     if (attachment.getContentType() != null) {
+                        embeddedFile.setSubtype(attachment.getContentType());
                         fileSpec.setFileDescription("Email attachment: " + uniqueFilename);
                     }
 
@@ -1137,7 +1132,7 @@ public class EmlToPdf {
                 efTree.setNames(efMap);
 
                 // Set catalog viewer preferences to automatically show attachments pane
-                setCatalogViewerPreferences(document);
+                setCatalogViewerPreferences(document, PageMode.USE_ATTACHMENTS);
             }
 
             // Add attachment annotations to the first page for each embedded file
@@ -1285,38 +1280,6 @@ public class EmlToPdf {
         }
     }
 
-    private static void setCatalogViewerPreferences(PDDocument document) {
-        try {
-            PDDocumentCatalog catalog = document.getDocumentCatalog();
-            if (catalog != null) {
-                // Get the catalog's COS dictionary to work with low-level PDF objects
-                COSDictionary catalogDict = catalog.getCOSObject();
-
-                // Set PageMode to UseAttachments - this is the standard PDF specification approach
-                // PageMode values: UseNone, UseOutlines, UseThumbs, FullScreen, UseOC, UseAttachments
-                catalogDict.setName(COSName.PAGE_MODE, "UseAttachments");
-
-                // Also set viewer preferences for better attachment viewing experience
-                COSDictionary viewerPrefs = (COSDictionary) catalogDict.getDictionaryObject(COSName.VIEWER_PREFERENCES);
-                if (viewerPrefs == null) {
-                    viewerPrefs = new COSDictionary();
-                    catalogDict.setItem(COSName.VIEWER_PREFERENCES, viewerPrefs);
-                }
-
-                // Set NonFullScreenPageMode to UseAttachments as fallback for viewers that support it
-                viewerPrefs.setName(COSName.getPDFName("NonFullScreenPageMode"), "UseAttachments");
-
-                // Additional viewer preferences that may help with attachment display
-                viewerPrefs.setBoolean(COSName.getPDFName("DisplayDocTitle"), true);
-
-                log.info("Set PDF PageMode to UseAttachments to automatically show attachments pane");
-            }
-        } catch (Exception e) {
-            // Log warning but don't fail the entire operation for viewer preferences
-            log.warn("Failed to set catalog viewer preferences for attachments", e);
-        }
-    }
-
     // MIME header decoding functionality for RFC 2047 encoded headers - moved to constants
 
     private static String decodeMimeHeader(String encodedText) {

common/src/main/java/stirling/software/common/util/PDFAttachmentUtils.java

@@ -0,0 +1,45 @@
+package stirling.software.common.util;
+
+import lombok.extern.slf4j.Slf4j;
+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.PageMode;
+
+@Slf4j
+public class PDFAttachmentUtils {
+
+    public static void setCatalogViewerPreferences(PDDocument document, PageMode pageMode) {
+        try {
+            PDDocumentCatalog catalog = document.getDocumentCatalog();
+            if (catalog != null) {
+                // Get the catalog's COS dictionary to work with low-level PDF objects
+                COSDictionary catalogDict = catalog.getCOSObject();
+
+                // Set PageMode to UseAttachments - this is the standard PDF specification approach
+                // PageMode values: UseNone, UseOutlines, UseThumbs, FullScreen, UseOC, UseAttachments
+                catalog.setPageMode(pageMode);
+                catalogDict.setName(COSName.PAGE_MODE, pageMode.stringValue());
+
+                // Also set viewer preferences for better attachment viewing experience
+                COSDictionary viewerPrefs = (COSDictionary) catalogDict.getDictionaryObject(COSName.VIEWER_PREFERENCES);
+                if (viewerPrefs == null) {
+                    viewerPrefs = new COSDictionary();
+                    catalogDict.setItem(COSName.VIEWER_PREFERENCES, viewerPrefs);
+                }
+
+                // Set NonFullScreenPageMode to UseAttachments as fallback for viewers that support it
+                viewerPrefs.setName(COSName.getPDFName("NonFullScreenPageMode"), pageMode.stringValue());
+
+                // Additional viewer preferences that may help with attachment display
+                viewerPrefs.setBoolean(COSName.getPDFName("DisplayDocTitle"), true);
+
+                log.info("Set PDF PageMode to UseAttachments to automatically show attachments pane");
+            }
+        } catch (Exception e) {
+            // Log error but don't fail the entire operation for viewer preferences
+            log.error("Failed to set catalog viewer preferences for attachments", e);
+        }
+    }
+}

common/src/main/java/stirling/software/common/util/WebResponseUtils.java

@@ -16,12 +16,12 @@ import io.github.pixee.security.Filenames;
 
 public class WebResponseUtils {
 
-    public static ResponseEntity<byte[]> boasToWebResponse(
+    public static ResponseEntity<byte[]> baosToWebResponse(
             ByteArrayOutputStream baos, String docName) throws IOException {
         return WebResponseUtils.bytesToWebResponse(baos.toByteArray(), docName);
     }
 
-    public static ResponseEntity<byte[]> boasToWebResponse(
+    public static ResponseEntity<byte[]> baosToWebResponse(
             ByteArrayOutputStream baos, String docName, MediaType mediaType) throws IOException {
         return WebResponseUtils.bytesToWebResponse(baos.toByteArray(), docName, mediaType);
     }
@@ -44,7 +44,7 @@ public class WebResponseUtils {
         headers.setContentType(mediaType);
         headers.setContentLength(bytes.length);
         String encodedDocName =
-                URLEncoder.encode(docName, StandardCharsets.UTF_8.toString())
+                URLEncoder.encode(docName, StandardCharsets.UTF_8)
                         .replaceAll("\\+", "%20");
         headers.setContentDispositionFormData("attachment", encodedDocName);
         return new ResponseEntity<>(bytes, headers, HttpStatus.OK);
@@ -61,9 +61,8 @@ public class WebResponseUtils {
         // Open Byte Array and save document to it
         ByteArrayOutputStream baos = new ByteArrayOutputStream();
         document.save(baos);
-        // Close the document
         document.close();
 
-        return boasToWebResponse(baos, docName);
+        return baosToWebResponse(baos, docName);
     }
 }

common/src/test/java/stirling/software/common/util/WebResponseUtilsTest.java

@@ -25,7 +25,7 @@ public class WebResponseUtilsTest {
             String docName = "sample.pdf";
 
             ResponseEntity<byte[]> responseEntity =
-                    WebResponseUtils.boasToWebResponse(baos, docName);
+                    WebResponseUtils.baosToWebResponse(baos, docName);
 
             assertNotNull(responseEntity);
             assertEquals(HttpStatus.OK, responseEntity.getStatusCode());

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

@@ -173,6 +173,7 @@ public class EndpointConfiguration {
         addEndpointToGroup("Other", "get-info-on-pdf");
         addEndpointToGroup("Other", "show-javascript");
         addEndpointToGroup("Other", "remove-image-pdf");
+        addEndpointToGroup("Other", "add-attachments");
 
         // CLI
         addEndpointToGroup("CLI", "compress-pdf");
@@ -251,6 +252,7 @@ public class EndpointConfiguration {
         addEndpointToGroup("Java", "pdf-to-text");
         addEndpointToGroup("Java", "remove-image-pdf");
         addEndpointToGroup("Java", "pdf-to-markdown");
+        addEndpointToGroup("Java", "add-attachments");
 
         // Javascript
         addEndpointToGroup("Javascript", "pdf-organizer");

stirling-pdf/src/main/java/stirling/software/SPDF/controller/api/MergeController.java

@@ -225,7 +225,7 @@ public class MergeController {
             String mergedFileName =
                     files[0].getOriginalFilename().replaceFirst("[.][^.]+$", "")
                             + "_merged_unsigned.pdf";
-            return WebResponseUtils.boasToWebResponse(
+            return WebResponseUtils.baosToWebResponse(
                     baos, mergedFileName); // Return the modified PDF
 
         } catch (Exception ex) {

stirling-pdf/src/main/java/stirling/software/SPDF/controller/api/misc/AttachmentsController.java

@@ -0,0 +1,100 @@
+package stirling.software.SPDF.controller.api.misc;
+
+import java.io.IOException;
+import java.util.List;
+
+import org.apache.pdfbox.pdmodel.*;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.multipart.MultipartFile;
+
+import io.github.pixee.security.Filenames;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+
+import stirling.software.SPDF.service.PDFAttachmentServiceInterface;
+import stirling.software.common.service.CustomPDFDocumentFactory;
+import stirling.software.common.util.WebResponseUtils;
+
+@Slf4j
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/api/v1/misc")
+@Tag(name = "Misc", description = "Miscellaneous APIs")
+public class AttachmentsController {
+
+    private final CustomPDFDocumentFactory pdfDocumentFactory;
+
+    private final PDFAttachmentServiceInterface pdfAttachmentService;
+
+    @SuppressWarnings("DataFlowIssue")
+    @PostMapping(consumes = "multipart/form-data", value = "/add-attachments")
+    @Operation(
+            summary = "Add attachments to PDF",
+            description =
+                    "This endpoint adds embedded files (attachments) to a PDF and sets the PageMode to UseAttachments to make them visible. Input:PDF + Files Output:PDF Type:MISO")
+    public ResponseEntity<byte[]> addAttachments(
+            @RequestParam("fileInput") MultipartFile pdfFile,
+            @RequestParam("attachments") List<MultipartFile> attachments)
+            throws IOException {
+
+        // Load the PDF document
+        PDDocument document = pdfDocumentFactory.load(pdfFile, false);
+
+        // Get or create the document catalog
+        PDDocumentCatalog catalog = document.getDocumentCatalog();
+
+        // Create embedded files name tree if it doesn't exist
+        PDDocumentNameDictionary documentNames = catalog.getNames();
+        PDEmbeddedFilesNameTreeNode embeddedFilesTree = new PDEmbeddedFilesNameTreeNode();
+
+        if (documentNames != null) {
+            embeddedFilesTree = documentNames.getEmbeddedFiles();
+        } else {
+            documentNames = new PDDocumentNameDictionary(catalog);
+            documentNames.setEmbeddedFiles(embeddedFilesTree);
+        }
+
+        // Add attachments
+        catalog.setNames(documentNames);
+        byte[] output =
+                pdfAttachmentService.addAttachment(document, embeddedFilesTree, attachments);
+
+        return WebResponseUtils.bytesToWebResponse(
+                output,
+                Filenames.toSimpleFileName(pdfFile.getOriginalFilename())
+                                .replaceFirst("[.][^.]+$", "")
+                        + "_with_attachments.pdf");
+    }
+
+    @PostMapping(consumes = "multipart/form-data", value = "/remove-attachments")
+    @Operation(
+            summary = "Remove attachments from PDF",
+            description =
+                    "This endpoint removes all embedded files (attachments) from a PDF. Input:PDF Output:PDF Type:SISO")
+    public ResponseEntity<byte[]> removeAttachments(
+            @RequestParam("fileInput") MultipartFile pdfFile) throws IOException {
+
+        // Load the PDF document and document catalog
+        PDDocument document = pdfDocumentFactory.load(pdfFile);
+        PDDocumentCatalog catalog = document.getDocumentCatalog();
+
+        // Remove embedded files
+        if (catalog.getNames() != null) {
+            catalog.getNames().setEmbeddedFiles(null);
+        }
+
+        // Reset PageMode to UseNone (default)
+        catalog.setPageMode(PageMode.USE_NONE);
+
+        // Return the modified PDF
+        return WebResponseUtils.pdfDocToWebResponse(
+                document,
+                Filenames.toSimpleFileName(pdfFile.getOriginalFilename())
+                                .replaceFirst("[.][^.]+$", "")
+                        + "_attachments_removed.pdf");
+    }
+}

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

@@ -144,7 +144,7 @@ public class BlankPageController {
             zos.close();
 
             log.info("Returning ZIP file: {}", filename + "_processed.zip");
-            return WebResponseUtils.boasToWebResponse(
+            return WebResponseUtils.baosToWebResponse(
                     baos, filename + "_processed.zip", MediaType.APPLICATION_OCTET_STREAM);
 
         } catch (IOException e) {

stirling-pdf/src/main/java/stirling/software/SPDF/controller/api/misc/ExtractImagesController.java

@@ -148,7 +148,7 @@ public class ExtractImagesController {
         // Create ByteArrayResource from byte array
         byte[] zipContents = baos.toByteArray();
 
-        return WebResponseUtils.boasToWebResponse(
+        return WebResponseUtils.baosToWebResponse(
                 baos, filename + "_extracted-images.zip", MediaType.APPLICATION_OCTET_STREAM);
     }
 

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

@@ -118,7 +118,7 @@ public class PipelineController {
             }
             zipOut.close();
             log.info("Returning zipped file response...");
-            return WebResponseUtils.boasToWebResponse(
+            return WebResponseUtils.baosToWebResponse(
                     baos, "output.zip", MediaType.APPLICATION_OCTET_STREAM);
         } catch (Exception e) {
             log.error("Error handling data: ", e);

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

@@ -205,7 +205,7 @@ public class CertSignController {
                 location,
                 reason,
                 showLogo);
-        return WebResponseUtils.boasToWebResponse(
+        return WebResponseUtils.baosToWebResponse(
                 baos,
                 Filenames.toSimpleFileName(pdf.getOriginalFilename()).replaceFirst("[.][^.]+$", "")
                         + "_signed.pdf");

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

@@ -191,4 +191,11 @@ public class OtherWebController {
         model.addAttribute("currentPage", "auto-rename");
         return "misc/auto-rename";
     }
+
+    @GetMapping("/add-attachments")
+    @Hidden
+    public String attachmentsForm(Model model) {
+        model.addAttribute("currentPage", "add-attachments");
+        return "misc/add-attachments";
+    }
 }

stirling-pdf/src/main/java/stirling/software/SPDF/service/PDFAttachmentService.java

@@ -0,0 +1,125 @@
+package stirling.software.SPDF.service;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.GregorianCalendar;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.PDEmbeddedFilesNameTreeNode;
+import org.apache.pdfbox.pdmodel.PageMode;
+import org.apache.pdfbox.pdmodel.common.filespecification.PDComplexFileSpecification;
+import org.apache.pdfbox.pdmodel.common.filespecification.PDEmbeddedFile;
+import org.apache.pdfbox.pdmodel.encryption.AccessPermission;
+import org.apache.pdfbox.pdmodel.encryption.StandardProtectionPolicy;
+import org.springframework.stereotype.Service;
+import org.springframework.web.multipart.MultipartFile;
+
+import lombok.extern.slf4j.Slf4j;
+
+import stirling.software.common.util.PDFAttachmentUtils;
+
+@Slf4j
+@Service
+public class PDFAttachmentService implements PDFAttachmentServiceInterface {
+
+    @Override
+    public byte[] addAttachment(
+            PDDocument document,
+            PDEmbeddedFilesNameTreeNode embeddedFilesTree,
+            List<MultipartFile> attachments)
+            throws IOException {
+        Map<String, PDComplexFileSpecification> existingNames;
+
+        try {
+            existingNames = embeddedFilesTree.getNames();
+
+            if (existingNames == null) {
+                log.debug("No existing embedded files found, creating new names map.");
+                existingNames = new HashMap<>();
+            }
+
+            log.debug("Embedded files: {}", existingNames.keySet());
+        } catch (IOException e) {
+            log.error("Could not retrieve existing embedded files", e);
+            throw e;
+        }
+
+        grantAccessPermissions(document);
+        final Map<String, PDComplexFileSpecification> existingEmbeddedFiles = existingNames;
+
+        attachments.forEach(
+                attachment -> {
+                    String filename = attachment.getOriginalFilename();
+
+                    try {
+                        PDEmbeddedFile embeddedFile =
+                                new PDEmbeddedFile(document, attachment.getInputStream());
+                        embeddedFile.setSize((int) attachment.getSize());
+                        embeddedFile.setCreationDate(new GregorianCalendar());
+                        embeddedFile.setModDate(new GregorianCalendar());
+                        String contentType = attachment.getContentType();
+                        if (StringUtils.isNotBlank(contentType)) {
+                            embeddedFile.setSubtype(contentType);
+                        }
+
+                        // Create attachments specification and associate embedded attachment with
+                        // file
+                        PDComplexFileSpecification fileSpecification =
+                                new PDComplexFileSpecification();
+                        fileSpecification.setFile(filename);
+                        fileSpecification.setFileUnicode(filename);
+                        fileSpecification.setFileDescription("Embedded attachment: " + filename);
+                        embeddedFile.setFile(fileSpecification);
+                        fileSpecification.setEmbeddedFile(embeddedFile);
+                        fileSpecification.setEmbeddedFileUnicode(embeddedFile);
+
+                        // Add to the existing files map
+                        existingEmbeddedFiles.put(filename, fileSpecification);
+
+                        log.info("Added attachment: {} ({} bytes)", filename, attachment.getSize());
+                    } catch (IOException e) {
+                        log.warn("Failed to create embedded file for attachment: {}", filename, e);
+                    }
+                });
+
+        embeddedFilesTree.setNames(existingNames);
+        PDFAttachmentUtils.setCatalogViewerPreferences(document, PageMode.USE_ATTACHMENTS);
+        ByteArrayOutputStream output = new ByteArrayOutputStream();
+        document.save(output);
+
+        return output.toByteArray();
+    }
+
+    private void grantAccessPermissions(PDDocument document) {
+        try {
+            AccessPermission currentPermissions = document.getCurrentAccessPermission();
+
+            currentPermissions.setCanAssembleDocument(true);
+            currentPermissions.setCanFillInForm(currentPermissions.canFillInForm());
+            currentPermissions.setCanModify(true);
+            currentPermissions.setCanPrint(true);
+            currentPermissions.setCanPrintFaithful(true);
+
+            // Ensure these permissions are enabled for embedded file access
+            currentPermissions.setCanExtractContent(true);
+            currentPermissions.setCanExtractForAccessibility(true);
+            currentPermissions.setCanModifyAnnotations(true);
+
+            var protectionPolicy = new StandardProtectionPolicy(null, null, currentPermissions);
+
+            if (!document.isAllSecurityToBeRemoved()) {
+                document.setAllSecurityToBeRemoved(true);
+            }
+
+            document.protect(protectionPolicy);
+            ByteArrayOutputStream output = new ByteArrayOutputStream();
+            document.save(output);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}

stirling-pdf/src/main/java/stirling/software/SPDF/service/PDFAttachmentServiceInterface.java

@@ -0,0 +1,17 @@
+package stirling.software.SPDF.service;
+
+import java.io.IOException;
+import java.util.List;
+
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.PDEmbeddedFilesNameTreeNode;
+import org.springframework.web.multipart.MultipartFile;
+
+public interface PDFAttachmentServiceInterface {
+
+    byte[] addAttachment(
+            PDDocument document,
+            PDEmbeddedFilesNameTreeNode efTree,
+            List<MultipartFile> attachments)
+            throws IOException;
+}

stirling-pdf/src/main/resources/messages_ar_AR.properties

@@ -471,6 +471,10 @@ home.addImage.title=????? ???? ??? ??? PDF
 home.addImage.desc=????? ???? ??? ???? ???? ?? PDF (????? ??? ??????)
 addImage.tags=????,jpg,????,???? ??????????
 
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
 home.watermark.title=????? ????? ?????
 home.watermark.desc=??? ????? ????? ????? ??? ????? PDF ????? ??.
 watermark.tags=??,?????,?????,???,???? ?????,????? ??????,????,jpg,????,???? ??????????
@@ -1642,3 +1646,17 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_az_AZ.properties

@@ -1642,3 +1642,17 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_bg_BG.properties

@@ -1642,3 +1642,17 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_bo_CN.properties

@@ -1642,3 +1642,17 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_ca_CA.properties

@@ -1642,3 +1642,17 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_cs_CZ.properties

@@ -1642,3 +1642,16 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_da_DK.properties

@@ -1642,3 +1642,17 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_de_DE.properties

@@ -1642,3 +1642,17 @@ fakeScan.blur=Verwischen
 fakeScan.noise=Rauschen
 fakeScan.yellowish=Gelblich (simulieren Sie altes Papier)
 fakeScan.resolution=Auflösung (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_el_GR.properties

@@ -1642,3 +1642,17 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_en_GB.properties

@@ -513,6 +513,10 @@ home.addImage.title=Add image
 home.addImage.desc=Adds a image onto a set location on the PDF
 addImage.tags=img,jpg,picture,photo
 
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
 home.watermark.title=Add Watermark
 home.watermark.desc=Add a custom watermark to your PDF document.
 watermark.tags=Text,repeating,label,own,copyright,trademark,img,jpg,picture,photo
@@ -1193,6 +1197,16 @@ addImage.everyPage=Every Page?
 addImage.upload=Add image
 addImage.submit=Add image
 
+#attachments
+attachments.title=Add Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments
 
 #merge
 merge.title=Merge

stirling-pdf/src/main/resources/messages_en_US.properties

@@ -472,6 +472,10 @@ home.addImage.title=Add image
 home.addImage.desc=Adds a image onto a set location on the PDF
 addImage.tags=img,jpg,picture,photo
 
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
 home.watermark.title=Add Watermark
 home.watermark.desc=Add a custom watermark to your PDF document.
 watermark.tags=Text,repeating,label,own,copyright,trademark,img,jpg,picture,photo
@@ -480,7 +484,6 @@ home.permissions.title=Change Permissions
 home.permissions.desc=Change the permissions of your PDF document
 permissions.tags=read,write,edit,print
 
-
 home.removePages.title=Remove
 home.removePages.desc=Delete unwanted pages from your PDF document.
 removePages.tags=Remove pages,delete pages
@@ -1153,6 +1156,18 @@ addImage.upload=Add image
 addImage.submit=Add image
 
 
+#attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments
+
+
 #merge
 merge.title=Merge
 merge.header=Merge multiple PDFs (2+)

stirling-pdf/src/main/resources/messages_es_ES.properties

@@ -1642,3 +1642,17 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_eu_ES.properties

@@ -1642,3 +1642,16 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_fa_IR.properties

@@ -1642,3 +1642,17 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_fr_FR.properties

@@ -1642,3 +1642,17 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_ga_IE.properties

@@ -1642,3 +1642,17 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_hi_IN.properties

@@ -1642,3 +1642,17 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_hr_HR.properties

@@ -1642,3 +1642,17 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_hu_HU.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Elmos
 fakeScan.noise=Zaj
 fakeScan.yellowish=Sárgás (régi papír szimulálása)
 fakeScan.resolution=Felbontás (DPI)
+
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_id_ID.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_it_IT.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Sfocatura
 fakeScan.noise=Rumore
 fakeScan.yellowish=Giallastro (simula carta vecchia)
 fakeScan.resolution=Risoluzione (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_ja_JP.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_ko_KR.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_ml_IN.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_ml_ML.properties

@@ -1475,3 +1475,17 @@ cookieBanner.preferencesModal.necessary.description=വെബ്സൈറ്റ
 cookieBanner.preferencesModal.analytics.title=അനലിറ്റിക്സ്
 cookieBanner.preferencesModal.analytics.description=ഞങ്ങളുടെ ടൂളുകൾ എങ്ങനെ ഉപയോഗിക്കുന്നുവെന്ന് മനസ്സിലാക്കാൻ ഈ കുക്കികൾ ഞങ്ങളെ സഹായിക്കുന്നു, അതിനാൽ ഞങ്ങളുടെ കമ്മ്യൂണിറ്റി ഏറ്റവും കൂടുതൽ വിലമതിക്കുന്ന ഫീച്ചറുകൾ നിർമ്മിക്കുന്നതിൽ ഞങ്ങൾക്ക് ശ്രദ്ധ കേന്ദ്രീകരിക്കാൻ കഴിയും. ഉറപ്പാക്കുക—സ്റ്റെർലിംഗ് PDF-ന് നിങ്ങൾ പ്രവർത്തിക്കുന്ന പ്രമാണങ്ങളുടെ ഉള്ളടക്കം ട്രാക്ക് ചെയ്യാൻ കഴിയില്ല, ഒരിക്കലും കഴിയില്ല.
 
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_nl_NL.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_no_NB.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_pl_PL.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_pt_BR.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_pt_PT.properties

@@ -1642,3 +1642,19 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_ro_RO.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_ru_RU.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_sk_SK.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_sl_SI.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_sr_LATN_RS.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_sv_SE.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_th_TH.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_tr_TR.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_uk_UA.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_vi_VN.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_zh_CN.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/messages_zh_TW.properties

@@ -1642,3 +1642,18 @@ fakeScan.blur=Blur
 fakeScan.noise=Noise
 fakeScan.yellowish=Yellowish (simulate old paper)
 fakeScan.resolution=Resolution (DPI)
+
+#attachments
+home.attachments.title=Add Attachments
+home.attachments.desc=Add or remove embedded files (attachments) to/from a PDF
+attachments.tags=embed,attach,file,attachment,attachments
+
+attachments.title=Attachments
+attachments.header=Add attachments
+attachments.removeHeader=Remove attachments from PDF
+attachments.selectFiles=Select files to attach
+attachments.description=Allows you to add attachments to the PDF
+attachments.descriptionPlaceholder=Enter a description for the attachments...
+attachments.addButton=Add Attachments
+attachments.removeDescription=This will remove all embedded files from the PDF.
+attachments.removeButton=Remove All Attachments

stirling-pdf/src/main/resources/templates/fragments/navElements.html

@@ -237,6 +237,9 @@
       <div
         th:replace="~{fragments/navbarEntry :: navbarEntry('unlock-pdf-forms', 'preview_off', 'home.unlockPDFForms.title', 'home.unlockPDFForms.desc', 'unlockPDFForms.tags', 'other')}">
       </div>
+      <div
+        th:replace="~{fragments/navbarEntry :: navbarEntry('add-attachments', 'attachment', 'home.attachments.title', 'home.attachments.desc', 'attachments.tags', 'other')}">
+      </div>
     </div>
   </div>
   <div id="groupAdvanced" class="feature-group">

stirling-pdf/src/main/resources/templates/home-legacy.html

@@ -290,6 +290,9 @@
               <div
                 th:replace="~{fragments/card :: card(id='unlock-pdf-forms', cardTitle=#{home.unlockPDFForms.title}, cardText=#{home.unlockPDFForms.desc}, cardLink='unlock-pdf-forms', toolIcon='preview_off', tags=#{unlockPDFForms.tags}, toolGroup='other')}">
               </div>
+              <div
+                th:replace="~{fragments/navbarEntry :: navbarEntry('add-attachments', 'attachment', 'home.attachments.title', 'home.attachments.desc', 'attachments.tags', 'other')}">
+              </div>
 
             </div>
           </div>

stirling-pdf/src/main/resources/templates/misc/add-attachments.html

@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<html th:lang="${#locale.language}" th:dir="#{language.direction}" th:data-language="${#locale.toString()}"
+  xmlns:th="https://www.thymeleaf.org">
+
+<head>
+  <th:block th:insert="~{fragments/common :: head(title=#{attachments.title}, header=#{attachments.header})}"></th:block>
+</head>
+
+<body>
+  <div id="page-container">
+    <div id="content-wrap">
+      <th:block th:insert="~{fragments/navbar.html :: navbar}"></th:block>
+      <br><br>
+      <div class="container">
+        <div class="row justify-content-center">
+          <div class="col-md-6 bg-card">
+            <div class="tool-header">
+              <span class="material-symbols-rounded tool-header-icon other">attachment</span>
+              <span class="tool-header-text" th:text="#{attachments.header}"></span>
+            </div>
+
+            <form action="#" th:action="@{/api/v1/misc/add-attachments}" method="post" enctype="multipart/form-data">
+              <!-- PDF file selector -->
+              <div th:replace="~{fragments/common :: fileSelector(name='fileInput', disableMultipleFiles=true, multipleInputsForSingleRequest=false, accept='application/pdf')}">
+              </div>
+
+              <!-- Attachment files selector -->
+              <div th:replace="~{fragments/common :: fileSelector(name='attachments', disableMultipleFiles=false, multipleInputsForSingleRequest=true, accept='*/*', inputText=#{attachments.selectFiles})}">
+              </div>
+
+              <!-- Submit button -->
+              <button type="submit" id="submitBtn" class="btn btn-primary" th:text="#{attachments.addButton}">Add Attachments</button>
+            </form>
+          </div>
+        </div>
+      </div>
+    </div>
+    <th:block th:insert="~{fragments/footer.html :: footer}"></th:block>
+  </div>
+</body>
+
+</html>

stirling-pdf/src/test/java/stirling/software/SPDF/controller/api/misc/AttachmentsControllerTest.java

@@ -0,0 +1,221 @@
+package stirling.software.SPDF.controller.api.misc;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.ArgumentMatchers.*;
+import static org.mockito.Mockito.*;
+
+import java.io.IOException;
+import java.util.List;
+
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.PDDocumentCatalog;
+import org.apache.pdfbox.pdmodel.PDDocumentNameDictionary;
+import org.apache.pdfbox.pdmodel.PDEmbeddedFilesNameTreeNode;
+import org.apache.pdfbox.pdmodel.PageMode;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.mock.web.MockMultipartFile;
+import org.springframework.web.multipart.MultipartFile;
+
+import stirling.software.SPDF.service.PDFAttachmentServiceInterface;
+import stirling.software.common.service.CustomPDFDocumentFactory;
+
+@ExtendWith(MockitoExtension.class)
+class AttachmentsControllerTest {
+
+    @Mock
+    private CustomPDFDocumentFactory pdfDocumentFactory;
+
+    @Mock
+    private PDFAttachmentServiceInterface pdfAttachmentService;
+
+    @InjectMocks
+    private AttachmentsController attachmentsController;
+
+    private MockMultipartFile pdfFile;
+    private MockMultipartFile attachment1;
+    private MockMultipartFile attachment2;
+    private PDDocument mockDocument;
+    private PDDocumentCatalog mockCatalog;
+    private PDDocumentNameDictionary mockNameDict;
+    private PDEmbeddedFilesNameTreeNode mockEmbeddedFilesTree;
+
+    @BeforeEach
+    void setUp() {
+        pdfFile = new MockMultipartFile("fileInput", "test.pdf", "application/pdf", "PDF content".getBytes());
+        attachment1 = new MockMultipartFile("attachment1", "file1.txt", "text/plain", "File 1 content".getBytes());
+        attachment2 = new MockMultipartFile("attachment2", "file2.jpg", "image/jpeg", "Image content".getBytes());
+        
+        mockDocument = mock(PDDocument.class);
+        mockCatalog = mock(PDDocumentCatalog.class);
+        mockNameDict = mock(PDDocumentNameDictionary.class);
+        mockEmbeddedFilesTree = mock(PDEmbeddedFilesNameTreeNode.class);
+    }
+
+    @Test
+    void addAttachments_WithExistingNames() throws IOException {
+        List<MultipartFile> attachments = List.of(attachment1, attachment2);
+        byte[] expectedOutput = "modified PDF content".getBytes();
+
+        when(pdfDocumentFactory.load(pdfFile, false)).thenReturn(mockDocument);
+        when(mockDocument.getDocumentCatalog()).thenReturn(mockCatalog);
+        when(mockCatalog.getNames()).thenReturn(mockNameDict);
+        when(mockNameDict.getEmbeddedFiles()).thenReturn(mockEmbeddedFilesTree);
+        when(pdfAttachmentService.addAttachment(mockDocument, mockEmbeddedFilesTree, attachments)).thenReturn(expectedOutput);
+
+        ResponseEntity<byte[]> response = attachmentsController.addAttachments(pdfFile, attachments);
+
+        assertNotNull(response);
+        assertEquals(HttpStatus.OK, response.getStatusCode());
+        assertNotNull(response.getBody());
+        verify(pdfDocumentFactory).load(pdfFile, false);
+        verify(mockCatalog).setNames(mockNameDict);
+        verify(pdfAttachmentService).addAttachment(mockDocument, mockEmbeddedFilesTree, attachments);
+    }
+
+    @Test
+    void addAttachments_WithoutExistingNames() throws IOException {
+        List<MultipartFile> attachments = List.of(attachment1);
+        byte[] expectedOutput = "modified PDF content".getBytes();
+
+        try (PDDocument realDocument = new PDDocument()) {
+            when(pdfDocumentFactory.load(pdfFile, false)).thenReturn(realDocument);
+            when(pdfAttachmentService.addAttachment(eq(realDocument), any(PDEmbeddedFilesNameTreeNode.class), eq(attachments))).thenReturn(expectedOutput);
+
+            ResponseEntity<byte[]> response = attachmentsController.addAttachments(pdfFile, attachments);
+
+            assertNotNull(response);
+            assertEquals(HttpStatus.OK, response.getStatusCode());
+            assertNotNull(response.getBody());
+            verify(pdfDocumentFactory).load(pdfFile, false);
+            verify(pdfAttachmentService).addAttachment(eq(realDocument), any(PDEmbeddedFilesNameTreeNode.class), eq(attachments));
+        }
+    }
+
+    @Test
+    void addAttachments_IOExceptionFromPDFLoad() throws IOException {
+        List<MultipartFile> attachments = List.of(attachment1);
+        IOException ioException = new IOException("Failed to load PDF");
+
+        when(pdfDocumentFactory.load(pdfFile, false)).thenThrow(ioException);
+
+        assertThrows(IOException.class, () -> attachmentsController.addAttachments(pdfFile, attachments));
+        verify(pdfDocumentFactory).load(pdfFile, false);
+        verifyNoInteractions(pdfAttachmentService);
+    }
+
+    @Test
+    void addAttachments_IOExceptionFromAttachmentService() throws IOException {
+        List<MultipartFile> attachments = List.of(attachment1);
+        IOException ioException = new IOException("Failed to add attachment");
+
+        when(pdfDocumentFactory.load(pdfFile, false)).thenReturn(mockDocument);
+        when(mockDocument.getDocumentCatalog()).thenReturn(mockCatalog);
+        when(mockCatalog.getNames()).thenReturn(mockNameDict);
+        when(mockNameDict.getEmbeddedFiles()).thenReturn(mockEmbeddedFilesTree);
+        when(pdfAttachmentService.addAttachment(mockDocument, mockEmbeddedFilesTree, attachments)).thenThrow(ioException);
+
+        assertThrows(IOException.class, () -> attachmentsController.addAttachments(pdfFile, attachments));
+        verify(pdfAttachmentService).addAttachment(mockDocument, mockEmbeddedFilesTree, attachments);
+    }
+
+    @Test
+    void removeAttachments_WithExistingNames() throws IOException {
+        when(pdfDocumentFactory.load(pdfFile)).thenReturn(mockDocument);
+        when(mockDocument.getDocumentCatalog()).thenReturn(mockCatalog);
+        when(mockCatalog.getNames()).thenReturn(mockNameDict);
+
+        ResponseEntity<byte[]> response = attachmentsController.removeAttachments(pdfFile);
+
+        assertNotNull(response);
+        assertEquals(HttpStatus.OK, response.getStatusCode());
+        verify(pdfDocumentFactory).load(pdfFile);
+        verify(mockNameDict).setEmbeddedFiles(null);
+        verify(mockCatalog).setPageMode(PageMode.USE_NONE);
+    }
+
+    @Test
+    void removeAttachments_WithoutExistingNames() throws IOException {
+        when(pdfDocumentFactory.load(pdfFile)).thenReturn(mockDocument);
+        when(mockDocument.getDocumentCatalog()).thenReturn(mockCatalog);
+        when(mockCatalog.getNames()).thenReturn(null);
+
+        ResponseEntity<byte[]> response = attachmentsController.removeAttachments(pdfFile);
+
+        assertNotNull(response);
+        assertEquals(HttpStatus.OK, response.getStatusCode());
+        verify(pdfDocumentFactory).load(pdfFile);
+        verify(mockCatalog).setPageMode(PageMode.USE_NONE);
+        verifyNoInteractions(mockNameDict);
+    }
+
+    @Test
+    void removeAttachments_IOExceptionFromPDFLoad() throws IOException {
+        IOException ioException = new IOException("Failed to load PDF");
+
+        when(pdfDocumentFactory.load(pdfFile)).thenThrow(ioException);
+
+        assertThrows(IOException.class, () -> attachmentsController.removeAttachments(pdfFile));
+        verify(pdfDocumentFactory).load(pdfFile);
+    }
+
+    @Test
+    void addAttachments_EmptyAttachmentsList() throws IOException {
+        List<MultipartFile> emptyAttachments = List.of();
+        byte[] expectedOutput = "PDF content without new attachments".getBytes();
+
+        when(pdfDocumentFactory.load(pdfFile, false)).thenReturn(mockDocument);
+        when(mockDocument.getDocumentCatalog()).thenReturn(mockCatalog);
+        when(mockCatalog.getNames()).thenReturn(mockNameDict);
+        when(mockNameDict.getEmbeddedFiles()).thenReturn(mockEmbeddedFilesTree);
+        when(pdfAttachmentService.addAttachment(mockDocument, mockEmbeddedFilesTree, emptyAttachments)).thenReturn(expectedOutput);
+
+        ResponseEntity<byte[]> response = attachmentsController.addAttachments(pdfFile, emptyAttachments);
+
+        assertNotNull(response);
+        assertEquals(HttpStatus.OK, response.getStatusCode());
+        assertNotNull(response.getBody());
+        verify(pdfAttachmentService).addAttachment(mockDocument, mockEmbeddedFilesTree, emptyAttachments);
+    }
+
+    @Test
+    void addAttachments_NullFilename() throws IOException {
+        MockMultipartFile attachmentWithNullName = new MockMultipartFile("attachment", null, "text/plain", "content".getBytes());
+        List<MultipartFile> attachments = List.of(attachmentWithNullName);
+        byte[] expectedOutput = "PDF with null filename attachment".getBytes();
+
+        when(pdfDocumentFactory.load(pdfFile, false)).thenReturn(mockDocument);
+        when(mockDocument.getDocumentCatalog()).thenReturn(mockCatalog);
+        when(mockCatalog.getNames()).thenReturn(mockNameDict);
+        when(mockNameDict.getEmbeddedFiles()).thenReturn(mockEmbeddedFilesTree);
+        when(pdfAttachmentService.addAttachment(mockDocument, mockEmbeddedFilesTree, attachments)).thenReturn(expectedOutput);
+
+        ResponseEntity<byte[]> response = attachmentsController.addAttachments(pdfFile, attachments);
+
+        assertNotNull(response);
+        assertEquals(HttpStatus.OK, response.getStatusCode());
+        assertNotNull(response.getBody());
+        verify(pdfAttachmentService).addAttachment(mockDocument, mockEmbeddedFilesTree, attachments);
+    }
+
+    @Test
+    void removeAttachments_NullPDFFilename() throws IOException {
+        MockMultipartFile pdfWithNullName = new MockMultipartFile("fileInput", null, "application/pdf", "PDF content".getBytes());
+
+        when(pdfDocumentFactory.load(pdfWithNullName)).thenReturn(mockDocument);
+        when(mockDocument.getDocumentCatalog()).thenReturn(mockCatalog);
+        when(mockCatalog.getNames()).thenReturn(null);
+
+        ResponseEntity<byte[]> response = attachmentsController.removeAttachments(pdfWithNullName);
+
+        assertNotNull(response);
+        assertEquals(HttpStatus.OK, response.getStatusCode());
+        verify(mockCatalog).setPageMode(PageMode.USE_NONE);
+    }
+}

stirling-pdf/src/test/java/stirling/software/SPDF/service/PDFAttachmentServiceTest.java

@@ -0,0 +1,216 @@
+package stirling.software.SPDF.service;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.List;
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.PDEmbeddedFilesNameTreeNode;
+import org.apache.pdfbox.pdmodel.common.filespecification.PDComplexFileSpecification;
+import org.apache.pdfbox.pdmodel.encryption.AccessPermission;
+import org.apache.pdfbox.pdmodel.encryption.StandardProtectionPolicy;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.web.multipart.MultipartFile;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.ArgumentMatchers.anyMap;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+class PDFAttachmentServiceTest {
+
+    private PDFAttachmentService pdfAttachmentService;
+
+    @BeforeEach
+    void setUp() {
+        pdfAttachmentService = new PDFAttachmentService();
+    }
+
+    @Test
+    void addAttachmentToPDF() throws IOException {
+        try (var document = new PDDocument()) {
+            var embeddedFilesTree = mock(PDEmbeddedFilesNameTreeNode.class);
+            var attachments = List.of(mock(MultipartFile.class));
+            var existingNames = new HashMap<String, PDComplexFileSpecification>();
+
+            when(embeddedFilesTree.getNames()).thenReturn(existingNames);
+            when(attachments.get(0).getOriginalFilename()).thenReturn("test.txt");
+            when(attachments.get(0).getInputStream()).thenReturn(
+                    new ByteArrayInputStream("Test content".getBytes()));
+            when(attachments.get(0).getSize()).thenReturn(12L);
+            when(attachments.get(0).getContentType()).thenReturn("text/plain");
+
+            byte[] result = pdfAttachmentService.addAttachment(document, embeddedFilesTree, attachments);
+
+            assertNotNull(result);
+            assertTrue(result.length > 0);
+            verify(embeddedFilesTree).setNames(anyMap());
+        }
+    }
+
+    @Test
+    void addAttachmentToPDF_WithNullExistingNames() throws IOException {
+        try (var document = new PDDocument()) {
+            var embeddedFilesTree = mock(PDEmbeddedFilesNameTreeNode.class);
+            var attachments = List.of(mock(MultipartFile.class));
+
+            when(embeddedFilesTree.getNames()).thenReturn(null);
+            when(attachments.get(0).getOriginalFilename()).thenReturn("document.pdf");
+            when(attachments.get(0).getInputStream()).thenReturn(
+                    new ByteArrayInputStream("PDF content".getBytes()));
+            when(attachments.get(0).getSize()).thenReturn(15L);
+            when(attachments.get(0).getContentType()).thenReturn("application/pdf");
+
+            byte[] result = pdfAttachmentService.addAttachment(document, embeddedFilesTree, attachments);
+
+            assertNotNull(result);
+            assertTrue(result.length > 0);
+            verify(embeddedFilesTree).setNames(anyMap());
+        }
+    }
+
+    @Test
+    void addAttachmentToPDF_WithBlankContentType() throws IOException {
+        try (var document = new PDDocument()) {
+            var embeddedFilesTree = mock(PDEmbeddedFilesNameTreeNode.class);
+            var attachments = List.of(mock(MultipartFile.class));
+            var existingNames = new HashMap<String, PDComplexFileSpecification>();
+
+            when(embeddedFilesTree.getNames()).thenReturn(existingNames);
+            when(attachments.get(0).getOriginalFilename()).thenReturn("image.jpg");
+            when(attachments.get(0).getInputStream()).thenReturn(
+                    new ByteArrayInputStream("Image content".getBytes()));
+            when(attachments.get(0).getSize()).thenReturn(25L);
+            when(attachments.get(0).getContentType()).thenReturn("");
+
+            byte[] result = pdfAttachmentService.addAttachment(document, embeddedFilesTree, attachments);
+
+            assertNotNull(result);
+            assertTrue(result.length > 0);
+            verify(embeddedFilesTree).setNames(anyMap());
+        }
+    }
+
+    @Test
+    void addAttachmentToPDF_GetNamesThrowsIOException() throws IOException {
+        var document = mock(PDDocument.class);
+        var embeddedFilesTree = mock(PDEmbeddedFilesNameTreeNode.class);
+        var attachments = List.of(mock(MultipartFile.class));
+        var ioException = new IOException("Failed to retrieve embedded files");
+
+        when(embeddedFilesTree.getNames()).thenThrow(ioException);
+
+        assertThrows(IOException.class, () -> pdfAttachmentService.addAttachment(document, embeddedFilesTree, attachments));
+
+        verify(embeddedFilesTree).getNames();
+    }
+
+    @Test
+    void addAttachmentToPDF_AttachmentInputStreamThrowsIOException() throws IOException {
+        try (var document = new PDDocument()) {
+            var embeddedFilesTree = mock(PDEmbeddedFilesNameTreeNode.class);
+            var attachments = List.of(mock(MultipartFile.class));
+            var existingNames = new HashMap<String, PDComplexFileSpecification>();
+            var ioException = new IOException("Failed to read attachment stream");
+
+            when(embeddedFilesTree.getNames()).thenReturn(existingNames);
+            when(attachments.get(0).getOriginalFilename()).thenReturn("corrupted.file");
+            when(attachments.get(0).getInputStream()).thenThrow(ioException);
+            when(attachments.get(0).getSize()).thenReturn(10L);
+
+            byte[] result = pdfAttachmentService.addAttachment(document, embeddedFilesTree, attachments);
+
+            assertNotNull(result);
+            assertTrue(result.length > 0);
+            verify(embeddedFilesTree).setNames(anyMap());
+        }
+    }
+
+    @Test
+    void addAttachmentToPDF_WithProtectedDocument() throws IOException {
+        try (var document = new PDDocument()) {
+            // Create a document with restricted permissions (this simulates an encrypted/protected document)
+            AccessPermission ap = new AccessPermission();
+            ap.setCanExtractContent(false); // Restrict content extraction initially
+            var spp = new StandardProtectionPolicy("owner", "user", ap);
+            document.protect(spp);
+
+            var embeddedFilesTree = mock(PDEmbeddedFilesNameTreeNode.class);
+            var attachments = List.of(mock(MultipartFile.class));
+            var existingNames = new HashMap<String, PDComplexFileSpecification>();
+
+            when(embeddedFilesTree.getNames()).thenReturn(existingNames);
+            when(attachments.get(0).getOriginalFilename()).thenReturn("test.txt");
+            when(attachments.get(0).getInputStream()).thenReturn(
+                    new ByteArrayInputStream("Test content".getBytes()));
+            when(attachments.get(0).getSize()).thenReturn(12L);
+            when(attachments.get(0).getContentType()).thenReturn("text/plain");
+
+            byte[] result = pdfAttachmentService.addAttachment(document, embeddedFilesTree, attachments);
+
+            assertNotNull(result);
+            assertTrue(result.length > 0);
+            verify(embeddedFilesTree).setNames(anyMap());
+        }
+    }
+
+    @Test
+    void addAttachmentToPDF_WithRestrictedPermissions() throws IOException {
+        try (var document = new PDDocument()) {
+            // Create a document with very restricted permissions that should block permission changes
+            AccessPermission ap = new AccessPermission();
+            ap.setCanModify(false);
+            ap.setCanAssembleDocument(false);
+            ap.setCanExtractContent(false);
+            var spp = new StandardProtectionPolicy("owner", "user", ap);
+            document.protect(spp);
+
+            var embeddedFilesTree = mock(PDEmbeddedFilesNameTreeNode.class);
+            var attachments = List.of(mock(MultipartFile.class));
+            var existingNames = new HashMap<String, PDComplexFileSpecification>();
+
+            when(embeddedFilesTree.getNames()).thenReturn(existingNames);
+            when(attachments.get(0).getOriginalFilename()).thenReturn("test.txt");
+            when(attachments.get(0).getInputStream()).thenReturn(
+                    new ByteArrayInputStream("Test content".getBytes()));
+            when(attachments.get(0).getSize()).thenReturn(12L);
+            when(attachments.get(0).getContentType()).thenReturn("text/plain");
+
+            byte[] result = pdfAttachmentService.addAttachment(document, embeddedFilesTree, attachments);
+
+            assertNotNull(result);
+            assertTrue(result.length > 0);
+            verify(embeddedFilesTree).setNames(anyMap());
+        }
+    }
+
+    @Test
+    void addAttachmentToPDF_WithNonEncryptedDocument() throws IOException {
+        try (var document = new PDDocument()) {
+            var embeddedFilesTree = mock(PDEmbeddedFilesNameTreeNode.class);
+            var attachments = List.of(mock(MultipartFile.class));
+            var existingNames = new HashMap<String, PDComplexFileSpecification>();
+
+            when(embeddedFilesTree.getNames()).thenReturn(existingNames);
+            when(attachments.get(0).getOriginalFilename()).thenReturn("test.txt");
+            when(attachments.get(0).getInputStream()).thenReturn(
+                    new ByteArrayInputStream("Test content".getBytes()));
+            when(attachments.get(0).getSize()).thenReturn(12L);
+            when(attachments.get(0).getContentType()).thenReturn("text/plain");
+
+            byte[] result = pdfAttachmentService.addAttachment(document, embeddedFilesTree, attachments);
+
+            assertNotNull(result);
+            assertTrue(result.length > 0);
+            // Verify permissions are set correctly for non-encrypted documents
+            AccessPermission permissions = document.getCurrentAccessPermission();
+            assertTrue(permissions.canExtractContent());
+            assertTrue(permissions.canExtractForAccessibility());
+            assertTrue(permissions.canModifyAnnotations());
+            verify(embeddedFilesTree).setNames(anyMap());
+        }
+    }
+}

testing/allEndpointsRemovedSettings.yml

@@ -128,7 +128,7 @@ ui:
   languages: [] # If empty, all languages are enabled. To display only German and Polish ["de_DE", "pl_PL"]. British English is always enabled.
 
 endpoints: # All the possible endpoints are disabled
-  toRemove: [crop, merge-pdfs, multi-page-layout, overlay-pdfs, pdf-to-single-page, rearrange-pages, remove-image-pdf, remove-pages, rotate-pdf, scale-pages, split-by-size-or-count, split-pages, split-pdf-by-chapters, split-pdf-by-sections, add-password, add-watermark, auto-redact, cert-sign, get-info-on-pdf, redact, remove-cert-sign, remove-password, sanitize-pdf, validate-signature, file-to-pdf, html-to-pdf, img-to-pdf, markdown-to-pdf, pdf-to-csv, pdf-to-html, pdf-to-img, pdf-to-markdown, pdf-to-pdfa, pdf-to-presentation, pdf-to-text, pdf-to-word, pdf-to-xml, url-to-pdf, add-image, add-page-numbers, add-stamp, auto-rename, auto-split-pdf, compress-pdf, decompress-pdf, extract-image-scans, extract-images, flatten, ocr-pdf, remove-blanks, repair, replace-invert-pdf, show-javascript, update-metadata, filter-contains-image, filter-contains-text, filter-file-size, filter-page-count, filter-page-rotation, filter-page-size] # list endpoints to disable (e.g. ['img-to-pdf', 'remove-pages'])
+  toRemove: [crop, merge-pdfs, multi-page-layout, overlay-pdfs, pdf-to-single-page, rearrange-pages, remove-image-pdf, remove-pages, rotate-pdf, scale-pages, split-by-size-or-count, split-pages, split-pdf-by-chapters, split-pdf-by-sections, add-password, add-watermark, auto-redact, cert-sign, get-info-on-pdf, redact, remove-cert-sign, remove-password, sanitize-pdf, validate-signature, file-to-pdf, html-to-pdf, img-to-pdf, markdown-to-pdf, pdf-to-csv, pdf-to-html, pdf-to-img, pdf-to-markdown, pdf-to-pdfa, pdf-to-presentation, pdf-to-text, pdf-to-word, pdf-to-xml, url-to-pdf, add-image, add-page-numbers, add-stamp, auto-rename, auto-split-pdf, compress-pdf, decompress-pdf, extract-image-scans, extract-images, flatten, ocr-pdf, remove-blanks, repair, replace-invert-pdf, show-javascript, update-metadata, filter-contains-image, filter-contains-text, filter-file-size, filter-page-count, filter-page-rotation, filter-page-size, add-attachments] # list endpoints to disable (e.g. ['img-to-pdf', 'remove-pages'])
   groupsToRemove: [] # list groups to disable (e.g. ['LibreOffice'])
 
 metrics:

testing/endpoints.txt

@@ -30,6 +30,7 @@
 /api/v1/misc/add-stamp
 /api/v1/misc/add-page-numbers
 /api/v1/misc/add-image
+/api/v1/misc/add-attachments
 /api/v1/convert/url/pdf
 /api/v1/convert/pdf/xml
 /api/v1/convert/pdf/word

testing/webpage_urls.txt

@@ -51,3 +51,4 @@
 /swagger-ui/index.html
 /licenses
 /releases
+/add-attachments