feat(pipeline): add pre-publish sanitization workflow

- Created `Pre-publish-sanitization.json` default pipeline configuration
- Added sanitization operations removing metadata, JavaScript, embedded files, and annotations
- Registered new pipeline in `GeneralUtils`
- Included "Pre-publish Sanitization" in the suggested automations list

Signed-off-by: Balázs Szücs <bszucs1209@gmail.com>

app/common/src/main/java/stirling/software/common/util/GeneralUtils.java

@@ -38,6 +38,7 @@ public class GeneralUtils {
             Set.of(
                     "OCR images.json",
                     "Prepare-pdfs-for-email.json",
+                    "Pre-publish-sanitization.json",
                     "split-rotate-auto-rename.json");
 
     private final String DEFAULT_WEBUI_CONFIGS_DIR = "defaultWebUIConfigs";

app/core/src/main/resources/static/pipeline/defaultWebUIConfigs/Pre-publish-sanitization.json

@@ -0,0 +1,54 @@
+{
+  "name": "Pre-publish-sanitization",
+  "pipeline": [
+    {
+      "operation": "/api/v1/security/sanitize-pdf",
+      "parameters": {
+        "removeJavaScript": true,
+        "removeEmbeddedFiles": true,
+        "removeXMPMetadata": true,
+        "removeMetadata": true,
+        "removeLinks": false,
+        "removeFonts": false
+      }
+    },
+    {
+      "operation": "/api/v1/misc/flatten",
+      "parameters": {
+        "flattenOnlyForms": true
+      }
+    },
+    {
+      "operation": "/api/v1/general/remove-annotations",
+      "parameters": {}
+    },
+    {
+      "operation": "/api/v1/misc/update-metadata",
+      "parameters": {
+        "deleteAll": true,
+        "author": "",
+        "creationDate": "",
+        "creator": "",
+        "keywords": "",
+        "modificationDate": "",
+        "producer": "",
+        "subject": "",
+        "title": "",
+        "trapped": ""
+      }
+    },
+    {
+      "operation": "/api/v1/misc/compress-pdf",
+      "parameters": {
+        "optimizeLevel": 3,
+        "expectedOutputSize": ""
+      }
+    }
+  ],
+  "_examples": {
+    "outputDir": "{outputFolder}/{folderName}",
+    "outputFileName": "{filename}-{pipelineName}-{date}-{time}"
+  },
+  "outputDir": "{outputFolder}",
+  "outputFileName": "pre_publish_{filename}.PDF"
+}

frontend/src/core/hooks/tools/automate/useSuggestedAutomations.ts

@@ -9,6 +9,7 @@ import { SPLIT_METHODS } from '@app/constants/splitConstants';
 const CompressIcon = () => React.createElement(LocalIcon, { icon: 'compress', width: '1.5rem', height: '1.5rem' });
 const SecurityIcon = () => React.createElement(LocalIcon, { icon: 'security', width: '1.5rem', height: '1.5rem' });
 const StarIcon = () => React.createElement(LocalIcon, { icon: 'star', width: '1.5rem', height: '1.5rem' });
+const PrivacyIcon = () => React.createElement(LocalIcon, { icon: 'shield-lock', width: '1.5rem', height: '1.5rem' });
 
 export function useSuggestedAutomations(): SuggestedAutomation[] {
   const { t } = useTranslation();
@@ -67,6 +68,63 @@ export function useSuggestedAutomations(): SuggestedAutomation[] {
         updatedAt: now,
         icon: SecurityIcon,
       },
+      {
+        id: "pre-publish-sanitization",
+        name: t("automation.suggested.prePublishSanitization", "Pre-publish Sanitization"),
+        description: t("automation.suggested.prePublishSanitizationDesc", "Sanitization workflow that removes all hidden metadata, JavaScript, embedded files, annotations, and flattens forms and layers to prevent data leakage before publishing PDFs online."),
+        operations: [
+          {
+            operation: "sanitize",
+            parameters: {
+              removeJavaScript: true,
+              removeEmbeddedFiles: true,
+              removeXMPMetadata: true,
+              removeMetadata: true,
+              removeLinks: true,
+              removeFonts: false,
+            }
+          },
+          {
+            operation: "flatten",
+            parameters: {
+              flattenOnlyForms: true,
+            }
+          },
+          {
+            operation: "removeAnnotations",
+            parameters: {}
+          },
+          {
+            operation: "changeMetadata",
+            parameters: {
+              deleteAll: true,
+              author: '',
+              creationDate: '',
+              creator: '',
+              keywords: '',
+              modificationDate: '',
+              producer: '',
+              subject: '',
+              title: '',
+              trapped: '',
+            }
+          },
+          {
+            operation: "compress",
+            parameters: {
+              compressionLevel: 3,
+              grayscale: false,
+              expectedSize: '',
+              compressionMethod: 'quality',
+              fileSizeValue: '',
+              fileSizeUnit: 'MB',
+            }
+          },
+        ],
+        createdAt: now,
+        updatedAt: now,
+        icon: PrivacyIcon,
+      },
       {
         id: "email-preparation",
         name: t("automation.suggested.emailPreparation", "Email Preparation"),

frontend/src/core/hooks/tools/changeMetadata/useChangeMetadataOperation.ts

@@ -40,13 +40,15 @@ export const buildChangeMetadataFormData = (parameters: ChangeMetadataParameters
 
   // Custom metadata - backend expects them as values to 'allRequestParams[customKeyX/customValueX]'
   let keyNumber = 0;
-  parameters.customMetadata.forEach((entry) => {
-    if (entry.key.trim() && entry.value.trim()) {
-      keyNumber += 1;
-      formData.append(`allRequestParams[customKey${keyNumber}]`, entry.key.trim());
-      formData.append(`allRequestParams[customValue${keyNumber}]`, entry.value.trim());
-    }
-  });
+  if (parameters.customMetadata && Array.isArray(parameters.customMetadata)) {
+    parameters.customMetadata.forEach((entry) => {
+      if (entry.key.trim() && entry.value.trim()) {
+        keyNumber += 1;
+        formData.append(`allRequestParams[customKey${keyNumber}]`, entry.key.trim());
+        formData.append(`allRequestParams[customValue${keyNumber}]`, entry.value.trim());
+      }
+    });
+  }
 
   return formData;
 };