.github/workflows/PR-Demo-Comment-with-react.yml

@@ -38,8 +38,7 @@ jobs:
       pr_ref: ${{ steps.get-pr-info.outputs.ref }}
       comment_id: ${{ github.event.comment.id }}
       disable_security: ${{ steps.check-security-flag.outputs.disable_security }}
-      enable_pro: ${{ steps.check-pro-flag.outputs.enable_pro }}
+
-      enable_enterprise: ${{ steps.check-pro-flag.outputs.enable_enterprise }}
     steps:
       - name: Harden Runner
         uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
@@ -99,25 +98,6 @@ jobs:
             echo "disable_security=true" >> $GITHUB_OUTPUT
           fi
 
-      - name: Check for pro flag
-        id: check-pro-flag
-        env:
-          COMMENT_BODY: ${{ github.event.comment.body }}
-        run: |
-          if [[ "$COMMENT_BODY" == *"pro"* ]] || [[ "$COMMENT_BODY" == *"premium"* ]]; then
-            echo "pro flags detected in comment"
-            echo "enable_pro=true" >> $GITHUB_OUTPUT
-            echo "enable_enterprise=false" >> $GITHUB_OUTPUT
-          elif [[ "$COMMENT_BODY" == *"enterprise"* ]]; then
-            echo "enterprise flags detected in comment"
-            echo "enable_enterprise=true" >> $GITHUB_OUTPUT
-            echo "enable_pro=false" >> $GITHUB_OUTPUT
-          else
-            echo "No pro or enterprise flags detected in comment"
-            echo "enable_pro=false" >> $GITHUB_OUTPUT
-            echo "enable_enterprise=false" >> $GITHUB_OUTPUT
-          fi
-
       - name: Add 'in_progress' reaction to comment
         id: add-eyes-reaction
         uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
@@ -229,21 +209,6 @@ jobs:
             SECURITY_STATUS="Security Disabled"
           fi
 
-          # Set pro/enterprise settings (enterprise implies pro)
-          if [ "${{ needs.check-comment.outputs.enable_enterprise }}" == "true" ]; then
-            PREMIUM_ENABLED="true"
-            PREMIUM_KEY="${{ secrets.ENTERPRISE_KEY }}"
-            PREMIUM_PROFEATURES_AUDIT_ENABLED="true"
-          elif [ "${{ needs.check-comment.outputs.enable_pro }}" == "true" ]; then
-            PREMIUM_ENABLED="true"
-            PREMIUM_KEY="${{ secrets.PREMIUM_KEY }}"
-            PREMIUM_PROFEATURES_AUDIT_ENABLED="true"
-          else
-            PREMIUM_ENABLED="false"
-            PREMIUM_KEY=""
-            PREMIUM_PROFEATURES_AUDIT_ENABLED="false"
-          fi
-
           # First create the docker-compose content locally
           cat > docker-compose.yml << EOF
           version: '3.3'
@@ -267,9 +232,6 @@ jobs:
                 SYSTEM_MAXFILESIZE: "100"
                 METRICS_ENABLED: "true"
                 SYSTEM_GOOGLEVISIBILITY: "false"
-                PREMIUM_KEY:                         "${PREMIUM_KEY}"
-                PREMIUM_ENABLED:                     "${PREMIUM_ENABLED}"
-                PREMIUM_PROFEATURES_AUDIT_ENABLED:   "${PREMIUM_PROFEATURES_AUDIT_ENABLED}"
               restart: on-failure:5
           EOF
 

HowToAddNewLanguage.md

@@ -61,16 +61,8 @@ Make sure to place the entry under the correct language section. This helps main
 
 #### Windows command
 
-```powershell
+```ps
-python .github/scripts/check_language_properties.py --reference-file stirling-pdf\src\main\resources\messages_en_GB.properties --branch "" --files stirling-pdf\src\main\resources\messages_pl_PL.properties
+python .github/scripts/check_language_properties.py --reference-file src\main\resources\messages_en_GB.properties --branch "" --files src\main\resources\messages_pl_PL.properties
 
-python .github/scripts/check_language_properties.py --reference-file stirling-pdf\src\main\resources\messages_en_GB.properties --branch "" --check-file stirling-pdf\src\main\resources\messages_pl_PL.properties
+python .github/scripts/check_language_properties.py --reference-file src\main\resources\messages_en_GB.properties --branch "" --check-file src\main\resources\messages_pl_PL.properties
-```
-
-#### Linux command
-
-```bash
-python3 .github/scripts/check_language_properties.py --reference-file stirling-pdf/src/main/resources/messages_en_GB.properties --branch "" --files stirling-pdf/src/main/resources/messages_pl_PL.properties
-
-python3 .github/scripts/check_language_properties.py --reference-file stirling-pdf/src/main/resources/messages_en_GB.properties --branch "" --check-file stirling-pdf/src/main/resources/messages_pl_PL.properties
 ```

proprietary/src/main/java/stirling/software/proprietary/web/CorrelationIdFilter.java

@@ -1,6 +1,5 @@
 package stirling.software.proprietary.web;
 
-import io.github.pixee.security.Newlines;
 import jakarta.servlet.FilterChain;
 import jakarta.servlet.ServletException;
 import jakarta.servlet.http.HttpServletRequest;
@@ -37,7 +36,7 @@ public class CorrelationIdFilter extends OncePerRequestFilter {
             }
             req.setAttribute(MDC_KEY, id);
             MDC.put(MDC_KEY, id);
-            res.setHeader(HEADER, Newlines.stripAll(id));
+            res.setHeader(HEADER, id);
 
             chain.doFilter(req, res);
         } finally {

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

@@ -1,61 +1,16 @@
 package stirling.software.SPDF.controller.api.converters;
 
-import java.awt.Color;
-import java.io.ByteArrayOutputStream;
 import io.github.pixee.security.Filenames;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import java.io.File;
-import java.io.IOException;
-import java.io.InputStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Calendar;
-import java.util.Collections;
-import java.util.HashSet;
 import java.util.List;
-import java.util.Map;
-import java.util.Optional;
-import java.util.Set;
-import java.util.TimeZone;
-
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.io.FileUtils;
-import org.apache.pdfbox.Loader;
-import org.apache.pdfbox.cos.COSArray;
-import org.apache.pdfbox.cos.COSBase;
-import org.apache.pdfbox.cos.COSDictionary;
-import org.apache.pdfbox.cos.COSName;
-import org.apache.pdfbox.pdfwriter.compress.CompressParameters;
-import org.apache.pdfbox.pdmodel.PDDocument;
-import org.apache.pdfbox.pdmodel.PDDocumentCatalog;
-import org.apache.pdfbox.pdmodel.PDDocumentInformation;
-import org.apache.pdfbox.pdmodel.PDPage;
-import org.apache.pdfbox.pdmodel.PDPageContentStream;
-import org.apache.pdfbox.pdmodel.PDResources;
-import org.apache.pdfbox.pdmodel.common.PDMetadata;
-import org.apache.pdfbox.pdmodel.common.PDStream;
-import org.apache.pdfbox.pdmodel.font.PDFont;
-import org.apache.pdfbox.pdmodel.font.PDFontDescriptor;
-import org.apache.pdfbox.pdmodel.font.PDTrueTypeFont;
-import org.apache.pdfbox.pdmodel.font.PDType0Font;
-import org.apache.pdfbox.pdmodel.graphics.PDXObject;
-import org.apache.pdfbox.pdmodel.graphics.color.PDOutputIntent;
-import org.apache.pdfbox.pdmodel.graphics.form.PDFormXObject;
-import org.apache.pdfbox.pdmodel.graphics.image.LosslessFactory;
-import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
-import org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotation;
-import org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotationTextMarkup;
-import org.apache.pdfbox.pdmodel.interactive.viewerpreferences.PDViewerPreferences;
-import org.apache.xmpbox.XMPMetadata;
-import org.apache.xmpbox.schema.AdobePDFSchema;
-import org.apache.xmpbox.schema.DublinCoreSchema;
-import org.apache.xmpbox.schema.PDFAIdentificationSchema;
-import org.apache.xmpbox.schema.XMPBasicSchema;
-import org.apache.xmpbox.xml.DomXmpParser;
-import org.apache.xmpbox.xml.XmpSerializer;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
@@ -101,37 +56,54 @@ public class ConvertPDFToPDFA {
                         : originalFileName;
 
         Path tempInputFile = null;
+        Path tempOutputDir = null;
         byte[] fileBytes;
-        Path loPdfPath = null; // Used for LibreOffice conversion output
-        File preProcessedFile = null;
-        int pdfaPart = 2;
 
         try {
             // Save uploaded file to temp location
             tempInputFile = Files.createTempFile("input_", ".pdf");
             inputFile.transferTo(tempInputFile);
 
-            // Branch conversion based on desired output PDF/A format
+            // Create temp output directory
-            if ("pdfa".equals(outputFormat)) {
+            tempOutputDir = Files.createTempDirectory("output_");
-                preProcessedFile = tempInputFile.toFile();
-            } else {
-                pdfaPart = 1;
-                preProcessedFile = preProcessHighlights(tempInputFile.toFile());
-            }
-            Set<String> missingFonts = new HashSet<>();
-            boolean needImgs = false;
-            try (PDDocument doc = Loader.loadPDF(preProcessedFile)) {
-                missingFonts = findUnembeddedFontNames(doc);
-                needImgs = (pdfaPart == 1) && hasTransparentImages(doc);
-                if (!missingFonts.isEmpty() || needImgs) {
-                    // Run LibreOffice conversion to get flattened images and embedded fonts
-                    loPdfPath = runLibreOfficeConversion(preProcessedFile.toPath(), pdfaPart);
-                }
-            }
-            fileBytes =
-                    convertToPdfA(
-                            preProcessedFile.toPath(), loPdfPath, pdfaPart, missingFonts, needImgs);
 
+            // Determine PDF/A filter based on requested format
+            String pdfFilter =
+                    "pdfa".equals(outputFormat)
+                            ? "pdf:writer_pdf_Export:{\"SelectPdfVersion\":{\"type\":\"long\",\"value\":\"2\"}}"
+                            : "pdf:writer_pdf_Export:{\"SelectPdfVersion\":{\"type\":\"long\",\"value\":\"1\"}}";
+
+            // Prepare LibreOffice command
+            List<String> command =
+                    new ArrayList<>(
+                            Arrays.asList(
+                                    "soffice",
+                                    "--headless",
+                                    "--nologo",
+                                    "--convert-to",
+                                    pdfFilter,
+                                    "--outdir",
+                                    tempOutputDir.toString(),
+                                    tempInputFile.toString()));
+
+            ProcessExecutorResult returnCode =
+                    ProcessExecutor.getInstance(ProcessExecutor.Processes.LIBRE_OFFICE)
+                            .runCommandWithOutputHandling(command);
+
+            if (returnCode.getRc() != 0) {
+                log.error("PDF/A conversion failed with return code: {}", returnCode.getRc());
+                throw new RuntimeException("PDF/A conversion failed");
+            }
+
+            // Get the output file
+            File[] outputFiles = tempOutputDir.toFile().listFiles();
+            if (outputFiles == null || outputFiles.length != 1) {
+                throw new RuntimeException(
+                        "Expected exactly one output file but found "
+                                + (outputFiles == null ? "none" : outputFiles.length));
+            }
+
+            fileBytes = FileUtils.readFileToByteArray(outputFiles[0]);
             String outputFilename = baseFileName + "_PDFA.pdf";
 
             return WebResponseUtils.bytesToWebResponse(
@@ -142,557 +114,9 @@ public class ConvertPDFToPDFA {
             if (tempInputFile != null) {
                 Files.deleteIfExists(tempInputFile);
             }
-            if (loPdfPath != null && loPdfPath.getParent() != null) {
+            if (tempOutputDir != null) {
-                FileUtils.deleteDirectory(loPdfPath.getParent().toFile());
+                FileUtils.deleteDirectory(tempOutputDir.toFile());
             }
-            if (preProcessedFile != null) {
-                Files.deleteIfExists(preProcessedFile.toPath());
-            }
-        }
-    }
-
-    /**
-     * Merge fonts & flattened images from loPdfPath into basePdfPath, then run the standard
-     * PDFBox/A pipeline.
-     *
-     * @param basePdfPath Path to the original (or highlight‐preprocessed) PDF
-     * @param loPdfPath Path to the LibreOffice–flattened PDF/A, or null if not used
-     * @param pdfaPart 1 (PDF/A-1B) or 2 (PDF/A-2B)
-     * @return the final PDF/A bytes
-     */
-    private byte[] convertToPdfA(
-            Path basePdfPath,
-            Path loPdfPath,
-            int pdfaPart,
-            Set<String> missingFonts,
-            boolean importImages)
-            throws Exception {
-        try (PDDocument baseDoc = Loader.loadPDF(basePdfPath.toFile())) {
-
-            if (loPdfPath != null) {
-                try (PDDocument loDoc = Loader.loadPDF(loPdfPath.toFile())) {
-                    if (!missingFonts.isEmpty()) {
-                        embedMissingFonts(loDoc, baseDoc, missingFonts);
-                    }
-                    if (importImages) {
-                        importFlattenedImages(loDoc, baseDoc);
-                    }
-                }
-            }
-            return processWithPDFBox(baseDoc, pdfaPart);
-        }
-    }
-
-    private byte[] processWithPDFBox(PDDocument document, int pdfaPart) throws Exception {
-
-        removeElementsForPdfA(document, pdfaPart);
-
-        mergeAndAddXmpMetadata(document, pdfaPart);
-
-        addICCProfileIfNotPresent(document);
-
-        // Mark the document as PDF/A
-        PDDocumentCatalog catalog = document.getDocumentCatalog();
-        catalog.setMetadata(
-                document.getDocumentCatalog().getMetadata()); // Ensure metadata is linked
-        catalog.setViewerPreferences(
-                new PDViewerPreferences(catalog.getCOSObject())); // PDF/A best practice
-        document.getDocument().setVersion(pdfaPart == 1 ? 1.4f : 1.7f);
-
-        ByteArrayOutputStream baos = new ByteArrayOutputStream();
-        if (pdfaPart == 1) {
-            document.save(baos, CompressParameters.NO_COMPRESSION);
-        } else {
-            document.save(baos);
-        }
-
-        return baos.toByteArray();
-    }
-
-    private Path runLibreOfficeConversion(Path tempInputFile, int pdfaPart) throws Exception {
-        // Create temp output directory
-        Path tempOutputDir = Files.createTempDirectory("output_");
-
-        // Determine PDF/A filter based on requested format
-        String pdfFilter =
-                pdfaPart == 2
-                        ? "pdf:writer_pdf_Export:{\"SelectPdfVersion\":{\"type\":\"long\",\"value\":\"2\"}}"
-                        : "pdf:writer_pdf_Export:{\"SelectPdfVersion\":{\"type\":\"long\",\"value\":\"1\"}}";
-
-        // Prepare LibreOffice command
-        List<String> command =
-                new ArrayList<>(
-                        Arrays.asList(
-                                "soffice",
-                                "--headless",
-                                "--nologo",
-                                "--convert-to",
-                                pdfFilter,
-                                "--outdir",
-                                tempOutputDir.toString(),
-                                tempInputFile.toString()));
-
-        ProcessExecutorResult returnCode =
-                ProcessExecutor.getInstance(ProcessExecutor.Processes.LIBRE_OFFICE)
-                        .runCommandWithOutputHandling(command);
-
-        if (returnCode.getRc() != 0) {
-            log.error("PDF/A conversion failed with return code: {}", returnCode.getRc());
-            throw new RuntimeException("PDF/A conversion failed");
-        }
-
-        // Get the output file
-        File[] outputFiles = tempOutputDir.toFile().listFiles();
-        if (outputFiles == null || outputFiles.length != 1) {
-            throw new RuntimeException(
-                    "Expected one output PDF, found "
-                            + (outputFiles == null ? "none" : outputFiles.length));
-        }
-        return outputFiles[0].toPath();
-    }
-
-    private void embedMissingFonts(PDDocument loDoc, PDDocument baseDoc, Set<String> missingFonts)
-            throws IOException {
-        List<PDPage> loPages = new ArrayList<>();
-        loDoc.getPages().forEach(loPages::add);
-        List<PDPage> basePages = new ArrayList<>();
-        baseDoc.getPages().forEach(basePages::add);
-
-        for (int i = 0; i < loPages.size(); i++) {
-            PDResources loRes = loPages.get(i).getResources();
-            PDResources baseRes = basePages.get(i).getResources();
-
-            for (COSName fontKey : loRes.getFontNames()) {
-                PDFont loFont = loRes.getFont(fontKey);
-                if (loFont == null) continue;
-
-                String psName = loFont.getName();
-                if (!missingFonts.contains(psName)) continue;
-
-                PDFontDescriptor desc = loFont.getFontDescriptor();
-                if (desc == null) continue;
-
-                PDStream fontStream = null;
-                if (desc.getFontFile() != null) {
-                    fontStream = desc.getFontFile();
-                } else if (desc.getFontFile2() != null) {
-                    fontStream = desc.getFontFile2();
-                } else if (desc.getFontFile3() != null) {
-                    fontStream = desc.getFontFile3();
-                }
-                if (fontStream == null) continue;
-
-                try (InputStream in = fontStream.createInputStream()) {
-                    PDFont newFont = null;
-                    try {
-                        newFont = PDType0Font.load(baseDoc, in, false);
-                    } catch (IOException e1) {
-                        try {
-                            newFont = PDTrueTypeFont.load(baseDoc, in, null);
-                        } catch (IOException | IllegalArgumentException e2) {
-                            log.error("Could not embed font {}: {}", psName, e2.getMessage());
-                            continue;
-                        }
-                    }
-                    if (newFont != null) {
-                        baseRes.put(fontKey, newFont);
-                    }
-                }
-            }
-        }
-    }
-
-    private Set<String> findUnembeddedFontNames(PDDocument doc) throws IOException {
-        Set<String> missing = new HashSet<>();
-        for (PDPage page : doc.getPages()) {
-            PDResources res = page.getResources();
-            for (COSName name : res.getFontNames()) {
-                PDFont font = res.getFont(name);
-                if (font != null && !font.isEmbedded()) {
-                    missing.add(font.getName());
-                }
-            }
-        }
-        return missing;
-    }
-
-    private void importFlattenedImages(PDDocument loDoc, PDDocument baseDoc) throws IOException {
-        List<PDPage> loPages = new ArrayList<>();
-        loDoc.getPages().forEach(loPages::add);
-        List<PDPage> basePages = new ArrayList<>();
-        baseDoc.getPages().forEach(basePages::add);
-
-        for (int i = 0; i < loPages.size(); i++) {
-            PDPage loPage = loPages.get(i);
-            PDPage basePage = basePages.get(i);
-
-            PDResources loRes = loPage.getResources();
-            PDResources baseRes = basePage.getResources();
-            Set<COSName> toReplace = detectTransparentXObjects(basePage);
-
-            for (COSName name : toReplace) {
-                PDXObject loXo = loRes.getXObject(name);
-                if (!(loXo instanceof PDImageXObject img)) continue;
-
-                PDImageXObject newImg = LosslessFactory.createFromImage(baseDoc, img.getImage());
-
-                // replace the resource under the same name
-                baseRes.put(name, newImg);
-            }
-        }
-    }
-
-    private Set<COSName> detectTransparentXObjects(PDPage page) {
-        Set<COSName> transparentObjects = new HashSet<>();
-        PDResources res = page.getResources();
-        if (res == null) return transparentObjects;
-
-        for (COSName name : res.getXObjectNames()) {
-            try {
-                PDXObject xo = res.getXObject(name);
-                if (xo instanceof PDImageXObject img) {
-                    COSDictionary d = img.getCOSObject();
-                    if (d.containsKey(COSName.SMASK)
-                            || isTransparencyGroup(d)
-                            || d.getBoolean(COSName.INTERPOLATE, false)) {
-                        transparentObjects.add(name);
-                    }
-                }
-            } catch (IOException ioe) {
-                log.error("Error processing XObject {}: {}", name.getName(), ioe.getMessage());
-            }
-        }
-        return transparentObjects;
-    }
-
-    private boolean isTransparencyGroup(COSDictionary dict) {
-        COSBase g = dict.getDictionaryObject(COSName.GROUP);
-        return g instanceof COSDictionary gd
-                && COSName.TRANSPARENCY.equals(gd.getCOSName(COSName.S));
-    }
-
-    private boolean hasTransparentImages(PDDocument doc) {
-        for (PDPage page : doc.getPages()) {
-            PDResources res = page.getResources();
-            if (res == null) continue;
-            for (COSName name : res.getXObjectNames()) {
-                try {
-                    PDXObject xo = res.getXObject(name);
-                    if (xo instanceof PDImageXObject img) {
-                        COSDictionary dict = img.getCOSObject();
-                        if (dict.containsKey(COSName.SMASK)) return true;
-                        COSBase g = dict.getDictionaryObject(COSName.GROUP);
-                        if (g instanceof COSDictionary gd
-                                && COSName.TRANSPARENCY.equals(gd.getCOSName(COSName.S))) {
-                            return true;
-                        }
-                        if (dict.getBoolean(COSName.INTERPOLATE, false)) return true;
-                    }
-                } catch (IOException ioe) {
-                    log.error("Error processing XObject {}: {}", name.getName(), ioe.getMessage());
-                }
-            }
-        }
-        return false;
-    }
-
-    private void sanitizePdfA(COSBase base, PDResources resources, int pdfaPart) {
-        if (base instanceof COSDictionary dict) {
-            if (pdfaPart == 1) {
-                // Remove transparency-related elements
-                COSBase group = dict.getDictionaryObject(COSName.GROUP);
-                if (group instanceof COSDictionary gDict
-                        && COSName.TRANSPARENCY.equals(gDict.getCOSName(COSName.S))) {
-                    dict.removeItem(COSName.GROUP);
-                }
-
-                dict.removeItem(COSName.SMASK);
-                // Transparency blending constants (/CA, /ca) — disallowed in PDF/A-1
-                dict.removeItem(COSName.CA);
-                dict.removeItem(COSName.getPDFName("ca"));
-            }
-
-            // Interpolation (non-deterministic image scaling) — required to be false
-            if (dict.containsKey(COSName.INTERPOLATE)
-                    && dict.getBoolean(COSName.INTERPOLATE, true)) {
-                dict.setBoolean(COSName.INTERPOLATE, false);
-            }
-
-            // Remove common forbidden features (for PDF/A 1 and 2)
-            dict.removeItem(COSName.JAVA_SCRIPT);
-            dict.removeItem(COSName.getPDFName("JS"));
-            dict.removeItem(COSName.getPDFName("RichMedia"));
-            dict.removeItem(COSName.getPDFName("Movie"));
-            dict.removeItem(COSName.getPDFName("Sound"));
-            dict.removeItem(COSName.getPDFName("Launch"));
-            dict.removeItem(COSName.URI);
-            dict.removeItem(COSName.getPDFName("GoToR"));
-            dict.removeItem(COSName.EMBEDDED_FILES);
-            dict.removeItem(COSName.FILESPEC);
-
-            // Recurse through all entries in the dictionary
-            for (Map.Entry<COSName, COSBase> entry : dict.entrySet()) {
-                sanitizePdfA(entry.getValue(), resources, pdfaPart);
-            }
-
-        } else if (base instanceof COSArray arr) {
-            // Recursively sanitize each item in the array
-            for (COSBase item : arr) {
-                sanitizePdfA(item, resources, pdfaPart);
-            }
-        }
-    }
-
-    private void removeElementsForPdfA(PDDocument doc, int pdfaPart) {
-
-        if (pdfaPart == 1) {
-            // Remove Optional Content (Layers) - not allowed in PDF/A-1
-            doc.getDocumentCatalog().getCOSObject().removeItem(COSName.getPDFName("OCProperties"));
-        }
-
-        for (PDPage page : doc.getPages()) {
-            if (pdfaPart == 1) {
-                page.setAnnotations(Collections.emptyList());
-            }
-            PDResources res = page.getResources();
-            // Clean page-level dictionary
-            sanitizePdfA(page.getCOSObject(), res, pdfaPart);
-
-            // sanitize each Form XObject
-            if (res != null) {
-                for (COSName name : res.getXObjectNames()) {
-                    try {
-                        PDXObject xo = res.getXObject(name);
-                        if (xo instanceof PDFormXObject form) {
-                            sanitizePdfA(form.getCOSObject(), res, pdfaPart);
-                        } else if (xo instanceof PDImageXObject img) {
-                            sanitizePdfA(img.getCOSObject(), res, pdfaPart);
-                        }
-                    } catch (IOException ioe) {
-                        log.error("Cannot load XObject {}: {}", name.getName(), ioe.getMessage());
-                    }
-                }
-            }
-        }
-    }
-
-    /** Embbeds the XMP metadata required for PDF/A compliance. */
-    private void mergeAndAddXmpMetadata(PDDocument document, int pdfaPart) throws Exception {
-        PDMetadata existingMetadata = document.getDocumentCatalog().getMetadata();
-        XMPMetadata xmp;
-
-        // Load existing XMP if available
-        if (existingMetadata != null) {
-            try (InputStream xmpStream = existingMetadata.createInputStream()) {
-                DomXmpParser parser = new DomXmpParser();
-                parser.setStrictParsing(false);
-                xmp = parser.parse(xmpStream);
-            } catch (Exception e) {
-                xmp = XMPMetadata.createXMPMetadata();
-            }
-        } else {
-            xmp = XMPMetadata.createXMPMetadata();
-        }
-
-        PDDocumentInformation docInfo = document.getDocumentInformation();
-        if (docInfo == null) {
-            docInfo = new PDDocumentInformation();
-        }
-
-        String originalCreator = Optional.ofNullable(docInfo.getCreator()).orElse("Unknown");
-        String originalProducer = Optional.ofNullable(docInfo.getProducer()).orElse("Unknown");
-
-        // Only keep the original creator so it can match xmp creator tool for compliance
-        DublinCoreSchema dcSchema = xmp.getDublinCoreSchema();
-        if (dcSchema != null) {
-            List<String> existingCreators = dcSchema.getCreators();
-            if (existingCreators != null) {
-                for (String creator : new ArrayList<>(existingCreators)) {
-                    dcSchema.removeCreator(creator);
-                }
-            }
-        } else {
-            dcSchema = xmp.createAndAddDublinCoreSchema();
-        }
-        dcSchema.addCreator(originalCreator);
-
-        PDFAIdentificationSchema pdfaSchema =
-                (PDFAIdentificationSchema) xmp.getSchema(PDFAIdentificationSchema.class);
-        if (pdfaSchema == null) {
-            pdfaSchema = xmp.createAndAddPDFAIdentificationSchema();
-        }
-        pdfaSchema.setPart(pdfaPart);
-        pdfaSchema.setConformance("B");
-
-        XMPBasicSchema xmpBasicSchema = xmp.getXMPBasicSchema();
-        if (xmpBasicSchema == null) {
-            xmpBasicSchema = xmp.createAndAddXMPBasicSchema();
-        }
-
-        AdobePDFSchema adobePdfSchema = xmp.getAdobePDFSchema();
-        if (adobePdfSchema == null) {
-            adobePdfSchema = xmp.createAndAddAdobePDFSchema();
-        }
-
-        docInfo.setCreator(originalCreator);
-        xmpBasicSchema.setCreatorTool(originalCreator);
-
-        docInfo.setProducer(originalProducer);
-        adobePdfSchema.setProducer(originalProducer);
-
-        String originalAuthor = docInfo.getAuthor();
-        if (originalAuthor != null && !originalAuthor.isBlank()) {
-            docInfo.setAuthor(null);
-            // If the author is set, we keep it in the XMP metadata
-            if (!originalCreator.equals(originalAuthor)) {
-                dcSchema.addCreator(originalAuthor);
-            }
-        }
-
-        String title = docInfo.getTitle();
-        if (title != null && !title.isBlank()) {
-            dcSchema.setTitle(title);
-        }
-        String subject = docInfo.getSubject();
-        if (subject != null && !subject.isBlank()) {
-            dcSchema.addSubject(subject);
-        }
-        String keywords = docInfo.getKeywords();
-        if (keywords != null && !keywords.isBlank()) {
-            adobePdfSchema.setKeywords(keywords);
-        }
-
-        // Set creation and modification dates
-        Calendar now = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
-        Calendar originalCreationDate = docInfo.getCreationDate();
-        if (originalCreationDate == null) {
-            originalCreationDate = now;
-        }
-        docInfo.setCreationDate(originalCreationDate);
-        xmpBasicSchema.setCreateDate(originalCreationDate);
-
-        docInfo.setModificationDate(now);
-        xmpBasicSchema.setModifyDate(now);
-        xmpBasicSchema.setMetadataDate(now);
-
-        // Serialize the created metadata so it can be attached to the existent metadata
-        ByteArrayOutputStream xmpOut = new ByteArrayOutputStream();
-        new XmpSerializer().serialize(xmp, xmpOut, true);
-
-        PDMetadata newMetadata = new PDMetadata(document);
-        newMetadata.importXMPMetadata(xmpOut.toByteArray());
-        document.getDocumentCatalog().setMetadata(newMetadata);
-    }
-
-    private void addICCProfileIfNotPresent(PDDocument document) throws Exception {
-        if (document.getDocumentCatalog().getOutputIntents().isEmpty()) {
-            try (InputStream colorProfile = getClass().getResourceAsStream("/icc/sRGB2014.icc")) {
-                PDOutputIntent outputIntent = new PDOutputIntent(document, colorProfile);
-                outputIntent.setInfo("sRGB IEC61966-2.1");
-                outputIntent.setOutputCondition("sRGB IEC61966-2.1");
-                outputIntent.setOutputConditionIdentifier("sRGB IEC61966-2.1");
-                outputIntent.setRegistryName("http://www.color.org");
-                document.getDocumentCatalog().addOutputIntent(outputIntent);
-            } catch (Exception e) {
-                log.error("Failed to load ICC profile: {}", e.getMessage());
-            }
-        }
-    }
-
-    private File preProcessHighlights(File inputPdf) throws Exception {
-
-        try (PDDocument document = Loader.loadPDF(inputPdf)) {
-
-            for (PDPage page : document.getPages()) {
-                // Retrieve the annotations on the page.
-                List<PDAnnotation> annotations = page.getAnnotations();
-                for (PDAnnotation annot : annotations) {
-                    // Process only highlight annotations.
-                    if ("Highlight".equals(annot.getSubtype())
-                            && annot instanceof PDAnnotationTextMarkup highlight) {
-                        // Create a new appearance stream with the same bounding box.
-                        float[] colorComponents =
-                                highlight.getColor() != null
-                                        ? highlight.getColor().getComponents()
-                                        : new float[] {1f, 1f, 0f};
-                        Color highlightColor =
-                                new Color(
-                                        colorComponents[0], colorComponents[1], colorComponents[2]);
-
-                        float[] quadPoints = highlight.getQuadPoints();
-                        if (quadPoints != null) {
-                            try (PDPageContentStream cs =
-                                    new PDPageContentStream(
-                                            document,
-                                            page,
-                                            PDPageContentStream.AppendMode.PREPEND,
-                                            true,
-                                            true)) {
-
-                                cs.setStrokingColor(highlightColor);
-                                cs.setLineWidth(0.05f);
-                                float spacing = 2f;
-                                // Draw diagonal lines across the highlight area to simulate
-                                // transparency.
-                                for (int i = 0; i < quadPoints.length; i += 8) {
-                                    float minX =
-                                            Math.min(
-                                                    Math.min(quadPoints[i], quadPoints[i + 2]),
-                                                    Math.min(quadPoints[i + 4], quadPoints[i + 6]));
-                                    float maxX =
-                                            Math.max(
-                                                    Math.max(quadPoints[i], quadPoints[i + 2]),
-                                                    Math.max(quadPoints[i + 4], quadPoints[i + 6]));
-                                    float minY =
-                                            Math.min(
-                                                    Math.min(quadPoints[i + 1], quadPoints[i + 3]),
-                                                    Math.min(quadPoints[i + 5], quadPoints[i + 7]));
-                                    float maxY =
-                                            Math.max(
-                                                    Math.max(quadPoints[i + 1], quadPoints[i + 3]),
-                                                    Math.max(quadPoints[i + 5], quadPoints[i + 7]));
-
-                                    float width = maxX - minX;
-                                    float height = maxY - minY;
-
-                                    for (float y = minY; y <= maxY; y += spacing) {
-                                        float len = Math.min(width, maxY - y);
-                                        cs.moveTo(minX, y);
-                                        cs.lineTo(minX + len, y + len);
-                                    }
-                                    for (float x = minX + spacing; x <= maxX; x += spacing) {
-                                        float len = Math.min(maxX - x, height);
-                                        cs.moveTo(x, minY);
-                                        cs.lineTo(x + len, minY + len);
-                                    }
-                                }
-
-                                cs.stroke();
-                            }
-                        }
-
-                        page.getAnnotations().remove(highlight);
-                        COSDictionary pageDict = page.getCOSObject();
-
-                        if (pageDict.containsKey(COSName.GROUP)) {
-                            COSDictionary groupDict =
-                                    (COSDictionary) pageDict.getDictionaryObject(COSName.GROUP);
-
-                            if (groupDict != null) {
-                                if (COSName.TRANSPARENCY
-                                        .getName()
-                                        .equalsIgnoreCase(groupDict.getNameAsString(COSName.S))) {
-                                    pageDict.removeItem(COSName.GROUP);
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-            // Save the modified document to a temporary file.
-            File preProcessedFile = Files.createTempFile("preprocessed_", ".pdf").toFile();
-            document.save(preProcessedFile);
-            return preProcessedFile;
         }
     }
 }