Merge b5754aaf69 into 3529849bca

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

@@ -92,6 +92,7 @@ public class OCRController {
         String ocrType = request.getOcrType();
         String ocrRenderType = request.getOcrRenderType();
         Boolean removeImagesAfter = request.isRemoveImagesAfter();
+        boolean invalidateDigitalSignatures = request.isInvalidateDigitalSignatures();
 
         if (selectedLanguages == null || selectedLanguages.isEmpty()) {
             throw ExceptionUtils.createOcrLanguageRequiredException();
@@ -130,6 +131,7 @@ public class OCRController {
                         ocrType,
                         ocrRenderType,
                         removeImagesAfter,
+                        invalidateDigitalSignatures,
                         tempInputFile.getPath(),
                         tempOutputFile.getPath(),
                         sidecarTextFile != null ? sidecarTextFile.getPath() : null);
@@ -203,6 +205,7 @@ public class OCRController {
             String ocrType,
             String ocrRenderType,
             Boolean removeImagesAfter,
+            boolean invalidateDigitalSignatures,
             Path tempInputFile,
             Path tempOutputFile,
             Path sidecarTextPath)
@@ -243,6 +246,9 @@ public class OCRController {
                 command.add("--force-ocr");
             }
         }
+        if (invalidateDigitalSignatures) {
+            command.add("--invalidate-digital-signatures");
+        }
 
         command.addAll(
                 Arrays.asList(

app/core/src/main/java/stirling/software/SPDF/model/api/misc/ProcessPdfWithOcrRequest.java

@@ -46,4 +46,9 @@ public class ProcessPdfWithOcrRequest extends PDFFile {
 
     @Schema(description = "Remove images from the output PDF if set to true")
     private boolean removeImagesAfter;
+
+    @Schema(
+            description =
+                    "Invalidate digital signatures in the PDF to allow OCR processing. WARNING: This will make any digital signatures in the document invalid.")
+    private boolean invalidateDigitalSignatures;
 }

frontend/public/locales/en-GB/translation.toml

@@ -2028,6 +2028,10 @@ help = "Please read this documentation on how to use this for other languages an
 credit = "This service uses qpdf and Tesseract for OCR."
 submit = "Process PDF with OCR"
 
+[ocr.invalidateSignatures]
+label = "Invalidate digital signatures"
+warning = "Warning: Enabling this option will invalidate any digital signatures in the PDF. The document will no longer be legally valid as a signed document."
+
 [ocr.selectText]
 1 = "Select languages that are to be detected within the PDF (Ones listed are the ones currently detected):"
 2 = "Produce text file containing OCR text alongside the OCR'ed PDF"

frontend/src/core/components/tools/ocr/AdvancedOCRSettings.tsx

@@ -35,6 +35,7 @@ const AdvancedOCRSettings: React.FC<AdvancedOCRSettingsProps> = ({
     { value: 'deskew', label: t('ocr.settings.advancedOptions.deskew', 'Deskew pages'), isSpecial: false },
     { value: 'clean', label: t('ocr.settings.advancedOptions.clean', 'Clean input file'), isSpecial: false },
     { value: 'cleanFinal', label: t('ocr.settings.advancedOptions.cleanFinal', 'Clean final output'), isSpecial: false },
+    { value: 'invalidateDigitalSignatures', label: t('ocr.invalidateSignatures.label', 'Invalidate digital signatures'), isSpecial: false },
   ];
 
   // Handle individual checkbox changes

frontend/src/core/components/tooltips/useAdvancedOCRTips.ts

@@ -28,6 +28,10 @@ export const useAdvancedOCRTips = (): TooltipContent => {
       {
         title: t("ocr.tooltip.advanced.cleanFinal.title", "Clean Final Output"),
         description: t("ocr.tooltip.advanced.cleanFinal.text", "Post-processes the final PDF by removing OCR artefacts and optimising the text layer for better readability and smaller file size.")
+      },
+      {
+        title: t("ocr.invalidateSignatures.label", "Invalidate digital signatures"),
+        description: t("ocr.invalidateSignatures.warning", "Warning: Enabling this option will invalidate any digital signatures in the PDF. The document will no longer be legally valid as a signed document.")
       }
     ]
   };

frontend/src/core/hooks/tools/ocr/useOCROperation.ts

@@ -49,6 +49,7 @@ export const buildOCRFormData = (parameters: OCRParameters, file: File): FormDat
   formData.append('clean', parameters.additionalOptions.includes('clean').toString());
   formData.append('cleanFinal', parameters.additionalOptions.includes('cleanFinal').toString());
   formData.append('removeImagesAfter', parameters.additionalOptions.includes('removeImagesAfter').toString());
+  formData.append('invalidateDigitalSignatures', parameters.additionalOptions.includes('invalidateDigitalSignatures').toString());
   return formData;
 };