Change record to fileStub

# Description of Changes

## Before

<img width="102" height="35" alt="image"
src="https://github.com/user-attachments/assets/fcb85906-85b6-41e1-9162-4084c0e684ec"
/>

## After

<img width="103" height="45" alt="image"
src="https://github.com/user-attachments/assets/241d61d8-d3c4-4dbf-a6af-4fda0867734d"
/>

.vscode/settings.json

@@ -139,5 +139,8 @@
     "app/core/src/main/java",
     "app/common/src/main/java",
     "app/proprietary/src/main/java"
-  ]
+  ],
+  "[typescript]": {
+    "editor.defaultFormatter": "vscode.typescript-language-features"
+  }
 }

frontend/package.json

@@ -38,16 +38,18 @@
   },
   "scripts": {
     "predev": "npm run generate-icons",
-    "dev": "npx tsc --noEmit && vite",
+    "dev": "npm run typecheck && vite",
     "prebuild": "npm run generate-icons",
-    "lint": "npx eslint",
-    "build": "npx tsc --noEmit && vite build",
+    "lint": "eslint",
+    "build": "npm run typecheck && vite build",
     "preview": "vite preview",
     "typecheck": "tsc --noEmit",
+    "check": "npm run typecheck && npm run lint && npm run test:run",
     "generate-licenses": "node scripts/generate-licenses.js",
     "generate-icons": "node scripts/generate-icons.js",
     "generate-icons:verbose": "node scripts/generate-icons.js --verbose",
     "test": "vitest",
+    "test:run": "vitest run",
     "test:watch": "vitest --watch",
     "test:coverage": "vitest --coverage",
     "test:e2e": "playwright test",

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

@@ -51,11 +51,11 @@
   "filesSelected": "{{count}} files selected",
   "files": {
     "title": "Files",
-    "placeholder": "Select a PDF file in the main view to get started",
     "upload": "Upload",
     "uploadFiles": "Upload Files",
     "addFiles": "Add files",
-    "selectFromWorkbench": "Select files from the workbench or "
+    "selectFromWorkbench": "Select files from the workbench or ",
+    "selectMultipleFromWorkbench": "Select at least {{count}} files from the workbench or "
   },
   "noFavourites": "No favourites added",
   "downloadComplete": "Download Complete",
@@ -498,13 +498,9 @@
       "title": "Show Javascript",
       "desc": "Searches and displays any JS injected into a PDF"
     },
-    "autoRedact": {
-      "title": "Auto Redact",
-      "desc": "Auto Redacts(Blacks out) text in a PDF based on input text"
-    },
     "redact": {
-      "title": "Manual Redaction",
-      "desc": "Redacts a PDF based on selected text, drawn shapes and/or selected page(s)"
+      "title": "Redact",
+      "desc": "Redacts (blacks out) a PDF based on selected text, drawn shapes and/or selected page(s)"
     },
     "overlay-pdfs": {
       "title": "Overlay PDFs",
@@ -648,11 +644,29 @@
   "merge": {
     "tags": "merge,Page operations,Back end,server side",
     "title": "Merge",
-    "header": "Merge multiple PDFs (2+)",
-    "sortByName": "Sort by name",
-    "sortByDate": "Sort by date",
-    "removeCertSign": "Remove digital signature in the merged file?",
-    "submit": "Merge"
+    "removeDigitalSignature": "Remove digital signature in the merged file?",
+    "generateTableOfContents": "Generate table of contents in the merged file?",
+    "removeDigitalSignature.tooltip": {
+      "title": "Remove Digital Signature",
+      "description": "Digital signatures will be invalidated when merging files. Check this to remove them from the final merged PDF."
+    },
+    "generateTableOfContents.tooltip": {
+      "title": "Generate Table of Contents",
+      "description": "Automatically creates a clickable table of contents in the merged PDF based on the original file names and page numbers."
+    },
+    "submit": "Merge",
+    "sortBy": {
+      "description": "Files will be merged in the order they're selected. Drag to reorder or sort below.",
+      "label": "Sort By",
+      "filename": "File Name",
+      "dateModified": "Date Modified",
+      "ascending": "Ascending",
+      "descending": "Descending",
+      "sort": "Sort"
+    },
+    "error": {
+      "failed": "An error occurred while merging the PDFs."
+    }
   },
   "split": {
     "tags": "Page operations,divide,Multi Page,cut,server side",
@@ -1469,7 +1483,29 @@
     "tags": "auto-detect,header-based,organize,relabel",
     "title": "Auto Rename",
     "header": "Auto Rename PDF",
-    "submit": "Auto Rename"
+    "description": "Automatically finds the title from your PDF content and uses it as the filename.",
+    "submit": "Auto Rename",
+    "files": {
+      "placeholder": "Select a PDF file in the main view to get started"
+    },
+    "error": {
+      "failed": "An error occurred whilst auto-renaming the PDF."
+    },
+    "results": {
+      "title": "Auto-Rename Results"
+    },
+    "tooltip": {
+      "header": {
+        "title": "How Auto-Rename Works"
+      },
+      "howItWorks": {
+        "title": "Smart Renaming",
+        "text": "Automatically finds the title from your PDF content and uses it as the filename.",
+        "bullet1": "Looks for text that appears to be a title or heading",
+        "bullet2": "Creates a clean, valid filename from the detected title",
+        "bullet3": "Keeps the original name if no suitable title is found"
+      }
+    }
   },
   "adjust-contrast": {
     "tags": "color-correction,tune,modify,enhance,colour-correction"
@@ -1561,50 +1597,123 @@
     "downloadJS": "Download Javascript",
     "submit": "Show"
   },
-  "autoRedact": {
-    "tags": "Redact,Hide,black out,black,marker,hidden",
-    "title": "Auto Redact",
-    "header": "Auto Redact",
-    "colorLabel": "Colour",
-    "textsToRedactLabel": "Text to Redact (line-separated)",
-    "textsToRedactPlaceholder": "e.g. \\nConfidential \\nTop-Secret",
-    "useRegexLabel": "Use Regex",
-    "wholeWordSearchLabel": "Whole Word Search",
-    "customPaddingLabel": "Custom Extra Padding",
-    "convertPDFToImageLabel": "Convert PDF to PDF-Image (Used to remove text behind the box)",
-    "submitButton": "Submit"
-  },
   "redact": {
-    "tags": "Redact,Hide,black out,black,marker,hidden,manual",
-    "title": "Manual Redaction",
-    "header": "Manual Redaction",
+    "tags": "Redact,Hide,black out,black,marker,hidden,auto redact,manual redact",
+    "title": "Redact",
     "submit": "Redact",
-    "textBasedRedaction": "Text based Redaction",
-    "pageBasedRedaction": "Page-based Redaction",
-    "convertPDFToImageLabel": "Convert PDF to PDF-Image (Used to remove text behind the box)",
-    "pageRedactionNumbers": {
-      "title": "Pages",
-      "placeholder": "(e.g. 1,2,8 or 4,7,12-16 or 2n-1)"
+    "error": {
+      "failed": "An error occurred while redacting the PDF."
     },
-    "redactionColor": {
-      "title": "Redaction Color"
+    "modeSelector": {
+      "title": "Redaction Method",
+      "mode": "Mode",
+      "automatic": "Automatic",
+      "automaticDesc": "Redact text based on search terms",
+      "manual": "Manual",
+      "manualDesc": "Click and drag to redact specific areas",
+      "manualComingSoon": "Manual redaction coming soon"
     },
-    "export": "Export",
-    "upload": "Upload",
-    "boxRedaction": "Box draw redaction",
-    "zoom": "Zoom",
-    "zoomIn": "Zoom in",
-    "zoomOut": "Zoom out",
-    "nextPage": "Next Page",
-    "previousPage": "Previous Page",
-    "toggleSidebar": "Toggle Sidebar",
-    "showThumbnails": "Show Thumbnails",
-    "showDocumentOutline": "Show Document Outline (double-click to expand/collapse all items)",
-    "showAttatchments": "Show Attachments",
-    "showLayers": "Show Layers (double-click to reset all layers to the default state)",
-    "colourPicker": "Colour Picker",
-    "findCurrentOutlineItem": "Find current outline item",
-    "applyChanges": "Apply Changes"
+    "auto": {
+      "header": "Auto Redact",
+      "settings": {
+        "title": "Redaction Settings",
+        "advancedTitle": "Advanced"
+      },
+      "colorLabel": "Box Colour",
+      "wordsToRedact": {
+        "title": "Words to Redact",
+        "placeholder": "Enter a word",
+        "add": "Add",
+        "examples": "Examples: Confidential, Top-Secret"
+      },
+      "useRegexLabel": "Use Regex",
+      "wholeWordSearchLabel": "Whole Word Search",
+      "customPaddingLabel": "Custom Extra Padding",
+      "convertPDFToImageLabel": "Convert PDF to PDF-Image"
+    },
+    "tooltip": {
+      "mode": {
+        "header": {
+          "title": "Redaction Method"
+        },
+        "automatic": {
+          "title": "Automatic Redaction",
+          "text": "Automatically finds and redacts specified text throughout the document. Perfect for removing consistent sensitive information like names, addresses, or confidential markers."
+        },
+        "manual": {
+          "title": "Manual Redaction",
+          "text": "Click and drag to manually select specific areas to redact. Gives you precise control over what gets redacted. (Coming soon)"
+        }
+      },
+      "words": {
+        "header": {
+          "title": "Words to Redact"
+        },
+        "description": {
+          "title": "Text Matching",
+          "text": "Enter words or phrases to find and redact in your document. Each word will be searched for separately."
+        },
+        "bullet1": "Add one word at a time",
+        "bullet2": "Press Enter or click 'Add Another' to add",
+        "bullet3": "Click × to remove words",
+        "examples": {
+          "title": "Common Examples",
+          "text": "Typical words to redact include: bank details, email addresses, or specific names."
+        }
+      },
+      "advanced": {
+        "header": {
+          "title": "Advanced Redaction Settings"
+        },
+        "color": {
+          "title": "Box Colour & Padding",
+          "text": "Customise the appearance of redaction boxes. Black is standard, but you can choose any colour. Padding adds extra space around the found text."
+        },
+        "regex": {
+          "title": "Use Regex",
+          "text": "Enable regular expressions for advanced pattern matching. Useful for finding phone numbers, emails, or complex patterns.",
+          "bullet1": "Example: \\d{4}-\\d{2}-\\d{2} to match any dates in YYYY-MM-DD format",
+          "bullet2": "Use with caution - test thoroughly"
+        },
+        "wholeWord": {
+          "title": "Whole Word Search",
+          "text": "Only match complete words, not partial matches. 'John' won't match 'Johnson' when enabled."
+        },
+        "convert": {
+          "title": "Convert to PDF-Image",
+          "text": "Converts the PDF to an image-based PDF after redaction. This ensures text behind redaction boxes is completely removed and unrecoverable."
+        }
+      }
+    },
+    "manual": {
+      "header": "Manual Redaction",
+      "textBasedRedaction": "Text-based Redaction",
+      "pageBasedRedaction": "Page-based Redaction",
+      "convertPDFToImageLabel": "Convert PDF to PDF-Image (Used to remove text behind the box)",
+      "pageRedactionNumbers": {
+        "title": "Pages",
+        "placeholder": "(e.g. 1,2,8 or 4,7,12-16 or 2n-1)"
+      },
+      "redactionColor": {
+        "title": "Redaction Colour"
+      },
+      "export": "Export",
+      "upload": "Upload",
+      "boxRedaction": "Box draw redaction",
+      "zoom": "Zoom",
+      "zoomIn": "Zoom in",
+      "zoomOut": "Zoom out",
+      "nextPage": "Next Page",
+      "previousPage": "Previous Page",
+      "toggleSidebar": "Toggle Sidebar",
+      "showThumbnails": "Show Thumbnails",
+      "showDocumentOutline": "Show Document Outline (double-click to expand/collapse all items)",
+      "showAttachments": "Show Attachments",
+      "showLayers": "Show Layers (double-click to reset all layers to the default state)",
+      "colourPicker": "Colour Picker",
+      "findCurrentOutlineItem": "Find current outline item",
+      "applyChanges": "Apply Changes"
+    }
   },
   "tableExtraxt": {
     "tags": "CSV,Table Extraction,extract,convert"
@@ -1815,6 +1924,11 @@
     "title": "Compress",
     "desc": "Compress PDFs to reduce their file size.",
     "header": "Compress PDF",
+    "method": {
+      "title": "Compression Method",
+      "quality": "Quality",
+      "filesize": "File Size"
+    },
     "credit": "This service uses qpdf for PDF Compress/Optimisation.",
     "grayscale": {
       "label": "Apply Grayscale for Compression"

frontend/public/locales/en-US/translation.json

@@ -1113,7 +1113,28 @@
     "tags": "auto-detect,header-based,organize,relabel",
     "title": "Auto Rename",
     "header": "Auto Rename PDF",
-    "submit": "Auto Rename"
+    "submit": "Auto Rename",
+    "files": {
+      "placeholder": "Select a PDF file in the main view to get started"
+    },
+    "error": {
+      "failed": "An error occurred while auto-renaming the PDF."
+    },
+    "results": {
+      "title": "Auto-Rename Results"
+    },
+    "tooltip": {
+      "header": {
+        "title": "How Auto-Rename Works"
+      },
+      "howItWorks": {
+        "title": "Smart Renaming",
+        "text": "Automatically finds the best title from your PDF content and uses it as the filename.",
+        "bullet1": "Looks for text that appears to be a title or heading",
+        "bullet2": "Creates a clean, valid filename from the detected title",
+        "bullet3": "Keeps the original name if no suitable title is found"
+      }
+    }
   },
   "adjust-contrast": {
     "tags": "color-correction,tune,modify,enhance"

frontend/src/assets/3rdPartyLicenses.json

@@ -385,6 +385,13 @@
             "moduleLicense": "MIT",
             "moduleLicenseUrl": "https://opensource.org/licenses/MIT"
         },
+        {
+            "moduleName": "@posthog/core",
+            "moduleUrl": "https://github.com/PostHog/posthog-js",
+            "moduleVersion": "1.0.2",
+            "moduleLicense": "MIT",
+            "moduleLicenseUrl": "https://opensource.org/licenses/MIT"
+        },
         {
             "moduleName": "@tailwindcss/node",
             "moduleUrl": "https://github.com/tailwindlabs/tailwindcss",
@@ -742,6 +749,13 @@
             "moduleLicense": "MIT",
             "moduleLicenseUrl": "https://opensource.org/licenses/MIT"
         },
+        {
+            "moduleName": "core-js",
+            "moduleUrl": "https://github.com/zloirock/core-js",
+            "moduleVersion": "3.45.1",
+            "moduleLicense": "MIT",
+            "moduleLicenseUrl": "https://opensource.org/licenses/MIT"
+        },
         {
             "moduleName": "core-util-is",
             "moduleUrl": "https://github.com/isaacs/core-util-is",
@@ -924,6 +938,13 @@
             "moduleLicense": "MIT",
             "moduleLicenseUrl": "https://opensource.org/licenses/MIT"
         },
+        {
+            "moduleName": "fflate",
+            "moduleUrl": "https://github.com/101arrowz/fflate",
+            "moduleVersion": "0.4.8",
+            "moduleLicense": "MIT",
+            "moduleLicenseUrl": "https://opensource.org/licenses/MIT"
+        },
         {
             "moduleName": "file-selector",
             "moduleUrl": "https://github.com/react-dropzone/file-selector",
@@ -1533,6 +1554,20 @@
             "moduleLicense": "MIT",
             "moduleLicenseUrl": "https://opensource.org/licenses/MIT"
         },
+        {
+            "moduleName": "posthog-js",
+            "moduleUrl": "https://github.com/PostHog/posthog-js",
+            "moduleVersion": "1.261.0",
+            "moduleLicense": "MIT*",
+            "moduleLicenseUrl": "https://opensource.org/licenses/MIT"
+        },
+        {
+            "moduleName": "preact",
+            "moduleUrl": "https://github.com/preactjs/preact",
+            "moduleVersion": "10.27.1",
+            "moduleLicense": "MIT",
+            "moduleLicenseUrl": "https://opensource.org/licenses/MIT"
+        },
         {
             "moduleName": "pretty-format",
             "moduleUrl": "https://github.com/facebook/jest",
@@ -1928,7 +1963,7 @@
         {
             "moduleName": "typescript",
             "moduleUrl": "https://github.com/microsoft/TypeScript",
-            "moduleVersion": "5.8.3",
+            "moduleVersion": "5.9.2",
             "moduleLicense": "Apache-2.0",
             "moduleLicenseUrl": "https://www.apache.org/licenses/LICENSE-2.0"
         },
@@ -1995,6 +2030,13 @@
             "moduleLicense": "Apache-2.0",
             "moduleLicenseUrl": "https://www.apache.org/licenses/LICENSE-2.0"
         },
+        {
+            "moduleName": "web-vitals",
+            "moduleUrl": "https://github.com/GoogleChrome/web-vitals",
+            "moduleVersion": "4.2.4",
+            "moduleLicense": "Apache-2.0",
+            "moduleLicenseUrl": "https://www.apache.org/licenses/LICENSE-2.0"
+        },
         {
             "moduleName": "webidl-conversions",
             "moduleUrl": "https://github.com/jsdom/webidl-conversions",

frontend/src/components/fileEditor/FileEditor.tsx

@@ -78,23 +78,6 @@ const FileEditor = ({
   // Use activeStirlingFileStubs directly - no conversion needed
   const localSelectedIds = contextSelectedIds;
 
-  // Helper to convert StirlingFileStub to FileThumbnail format
-  const recordToFileItem = useCallback((record: any) => {
-    const file = selectors.getFile(record.id);
-    if (!file) return null;
-
-    return {
-      id: record.id,
-      name: file.name,
-      pageCount: record.processedFile?.totalPages || 1,
-      thumbnail: record.thumbnailUrl || '',
-      size: file.size,
-      modifiedAt: file.lastModified,
-      file: file
-    };
-  }, [selectors]);
-
-
   // Process uploaded files using context
   const handleFileUpload = useCallback(async (uploadedFiles: File[]) => {
     setError(null);
@@ -405,13 +388,10 @@ const FileEditor = ({
             }}
           >
             {activeStirlingFileStubs.map((record, index) => {
-              const fileItem = recordToFileItem(record);
-              if (!fileItem) return null;
-
               return (
                 <FileEditorThumbnail
                   key={record.id}
-                  file={fileItem}
+                  file={record}
                   index={index}
                   totalFiles={activeStirlingFileStubs.length}
                   selectedFiles={localSelectedIds}
@@ -422,7 +402,7 @@ const FileEditor = ({
                   onSetStatus={setStatus}
                   onReorderFiles={handleReorderFiles}
                   toolMode={toolMode}
-                  isSupported={isFileSupported(fileItem.name)}
+                  isSupported={isFileSupported(record.name)}
                 />
               );
             })}

frontend/src/components/fileEditor/FileEditorThumbnail.tsx

@@ -8,23 +8,17 @@ import PushPinIcon from '@mui/icons-material/PushPin';
 import PushPinOutlinedIcon from '@mui/icons-material/PushPinOutlined';
 import DragIndicatorIcon from '@mui/icons-material/DragIndicator';
 import { draggable, dropTargetForElements } from '@atlaskit/pragmatic-drag-and-drop/element/adapter';
+import { StirlingFileStub } from '../../types/fileContext';
 
 import styles from './FileEditor.module.css';
 import { useFileContext } from '../../contexts/FileContext';
 import { FileId } from '../../types/file';
 import ToolChain from '../shared/ToolChain';
 
-interface FileItem {
-  id: FileId;
-  name: string;
-  pageCount: number;
-  thumbnail: string | null;
-  size: number;
-  modifiedAt?: number | string | Date;
-}
+
 
 interface FileEditorThumbnailProps {
-  file: FileItem;
+  file: StirlingFileStub;
   index: number;
   totalFiles: number;
   selectedFiles: FileId[];
@@ -51,7 +45,7 @@ const FileEditorThumbnail = ({
   isSupported = true,
 }: FileEditorThumbnailProps) => {
   const { t } = useTranslation();
-  const { pinFile, unpinFile, isFilePinned, activeFiles, selectors } = useFileContext();
+  const { pinFile, unpinFile, isFilePinned, activeFiles } = useFileContext();
 
   // ---- Drag state ----
   const [isDragging, setIsDragging] = useState(false);
@@ -65,12 +59,7 @@ const FileEditorThumbnail = ({
   }, [activeFiles, file.id]);
   const isPinned = actualFile ? isFilePinned(actualFile) : false;
 
-  // Get file record to access tool history
-  const fileRecord = selectors.getStirlingFileStub(file.id);
-  const toolHistory = fileRecord?.toolHistory || [];
-  const hasToolHistory = toolHistory.length > 0;
-  const versionNumber = fileRecord?.versionNumber || 1;
-
+  const pageCount = file.processedFile?.totalPages || 0;
 
   const downloadSelectedFile = useCallback(() => {
     // Prefer parent-provided handler if available
@@ -117,22 +106,21 @@ const FileEditorThumbnail = ({
 
   const pageLabel = useMemo(
     () =>
-      file.pageCount > 0
-        ? `${file.pageCount} ${file.pageCount === 1 ? 'Page' : 'Pages'}`
+      pageCount > 0
+        ? `${pageCount} ${pageCount === 1 ? 'Page' : 'Pages'}`
         : '',
-    [file.pageCount]
+    [pageCount]
   );
 
   const dateLabel = useMemo(() => {
-    const d =
-      file.modifiedAt != null ? new Date(file.modifiedAt) : new Date(); // fallback
+    const d = new Date(file.lastModified);
     if (Number.isNaN(d.getTime())) return '';
     return new Intl.DateTimeFormat(undefined, {
       month: 'short',
       day: '2-digit',
       year: 'numeric',
     }).format(d);
-  }, [file.modifiedAt]);
+  }, [file.lastModified]);
 
   // ---- Drag & drop wiring ----
   const fileElementRef = useCallback((element: HTMLDivElement | null) => {
@@ -359,7 +347,7 @@ const FileEditorThumbnail = ({
           title={`${extUpper || 'FILE'} • ${prettySize}`}
         >
           {/* e.g.,  v2 - Jan 29, 2025 - PDF file - 3 Pages */}
-          {hasToolHistory ? ` v${versionNumber} - ` : ''}
+          {`v${file.versionNumber} - `}
           {dateLabel}
           {extUpper ? ` - ${extUpper} file` : ''}
           {pageLabel ? ` - ${pageLabel}` : ''}
@@ -369,9 +357,9 @@ const FileEditorThumbnail = ({
       {/* Preview area */}
       <div className={`${styles.previewBox} mx-6 mb-4 relative flex-1`}>
         <div className={styles.previewPaper}>
-          {file.thumbnail && (
+          {file.thumbnailUrl && (
             <img
-              src={file.thumbnail}
+              src={file.thumbnailUrl}
               alt={file.name}
               draggable={false}
               loading="lazy"
@@ -410,7 +398,7 @@ const FileEditorThumbnail = ({
         </span>
 
         {/* Tool chain display at bottom */}
-        {hasToolHistory && (
+        {file.toolHistory && (
           <div style={{
             position: 'absolute',
             bottom: '4px',
@@ -423,7 +411,7 @@ const FileEditorThumbnail = ({
             whiteSpace: 'nowrap'
           }}>
             <ToolChain
-              toolChain={toolHistory}
+              toolChain={file.toolHistory}
               displayStyle="text"
               size="xs"
               maxWidth={'100%'}

frontend/src/components/fileManager/FileActions.tsx

@@ -1,22 +1,15 @@
 import React from "react";
-import { Group, Text, ActionIcon, Tooltip, Switch } from "@mantine/core";
+import { Group, Text, ActionIcon, Tooltip } from "@mantine/core";
 import SelectAllIcon from "@mui/icons-material/SelectAll";
 import DeleteIcon from "@mui/icons-material/Delete";
 import DownloadIcon from "@mui/icons-material/Download";
-import HistoryIcon from "@mui/icons-material/History";
 import { useTranslation } from "react-i18next";
 import { useFileManagerContext } from "../../contexts/FileManagerContext";
 
 const FileActions: React.FC = () => {
   const { t } = useTranslation();
-  const { 
-    recentFiles, 
-    selectedFileIds, 
-    filteredFiles, 
-    onSelectAll, 
-    onDeleteSelected, 
-    onDownloadSelected
-  } = useFileManagerContext();
+  const { recentFiles, selectedFileIds, filteredFiles, onSelectAll, onDeleteSelected, onDownloadSelected } =
+    useFileManagerContext();
 
   const handleSelectAll = () => {
     onSelectAll();

frontend/src/components/fileManager/FileDetails.tsx

@@ -73,9 +73,9 @@ const FileDetails: React.FC<FileDetailsProps> = ({
   }
 
   return (
-    <Stack gap="md" h={`calc(${modalHeight} - 2rem)`}>
+    <Stack gap="lg" h={`calc(${modalHeight} - 2rem)`}>
       {/* Section 1: Thumbnail Preview */}
-      <Box style={{ width: '100%', height: `calc(${modalHeight} * 0.42 - 1rem)`, textAlign: 'center', padding: 'xs' }}>
+      <Box style={{ width: '100%', height: `calc(${modalHeight} * 0.5 - 2rem)`, textAlign: 'center', padding: 'xs' }}>
         <FilePreview
           file={currentFile}
           thumbnail={getCurrentThumbnail()}

frontend/src/components/fileManager/FileInfoCard.tsx

@@ -17,7 +17,7 @@ const FileInfoCard: React.FC<FileInfoCardProps> = ({
   const { t } = useTranslation();
 
   return (
-    <Card withBorder p={0} h={`calc(${modalHeight} * 0.38 - 1rem)`} style={{ flex: 1, overflow: 'hidden' }}>
+    <Card withBorder p={0} h={`calc(${modalHeight} * 0.32 - 1rem)`} style={{ flex: 1, overflow: 'hidden' }}>
       <Box bg="gray.4" p="sm" style={{ borderTopLeftRadius: 'var(--mantine-radius-md)', borderTopRightRadius: 'var(--mantine-radius-md)' }}>
         <Text size="sm" fw={500} ta="center" c="white">
           {t('fileManager.details', 'File Details')}
@@ -129,7 +129,6 @@ const FileInfoCard: React.FC<FileInfoCardProps> = ({
                   toolChain={currentFile.toolHistory}
                   displayStyle="badges"
                   size="xs"
-                  maxWidth={'180px'}
                 />
               </Box>
             </>

frontend/src/components/fileManager/FileListItem.tsx

@@ -1,14 +1,13 @@
 import React, { useState } from 'react';
-import { Group, Box, Text, ActionIcon, Checkbox, Divider, Menu, Badge, Loader } from '@mantine/core';
+import { Group, Box, Text, ActionIcon, Checkbox, Divider, Menu, Badge } from '@mantine/core';
 import MoreVertIcon from '@mui/icons-material/MoreVert';
 import DeleteIcon from '@mui/icons-material/Delete';
 import DownloadIcon from '@mui/icons-material/Download';
-import AddIcon from '@mui/icons-material/Add';
 import HistoryIcon from '@mui/icons-material/History';
 import RestoreIcon from '@mui/icons-material/Restore';
 import { useTranslation } from 'react-i18next';
 import { getFileSize, getFileDate } from '../../utils/fileUtils';
-import { StirlingFileStub } from '../../types/fileContext';
+import { FileId, StirlingFileStub } from '../../types/fileContext';
 import { useFileManagerContext } from '../../contexts/FileManagerContext';
 import ToolChain from '../shared/ToolChain';
 
@@ -45,7 +44,7 @@ const FileListItem: React.FC<FileListItemProps> = ({
   const shouldShowHovered = isHovered || isMenuOpen;
 
   // Get version information for this file
-  const leafFileId = isLatestVersion ? file.id : (file.originalFileId || file.id);
+  const leafFileId = (isLatestVersion ? file.id : (file.originalFileId || file.id)) as FileId;
   const hasVersionHistory = (file.versionNumber || 1) > 1; // Show history for any processed file (v2+)
   const currentVersion = file.versionNumber || 1; // Display original files as v1
   const isExpanded = expandedFileIds.has(leafFileId);

frontend/src/components/shared/ButtonSelector.test.tsx

@@ -0,0 +1,216 @@
+import { describe, expect, test, vi, beforeEach } from 'vitest';
+import { render, screen, fireEvent } from '@testing-library/react';
+import { MantineProvider } from '@mantine/core';
+import ButtonSelector from './ButtonSelector';
+
+// Wrapper component to provide Mantine context
+const TestWrapper = ({ children }: { children: React.ReactNode }) => (
+  <MantineProvider>{children}</MantineProvider>
+);
+
+describe('ButtonSelector', () => {
+  const mockOnChange = vi.fn();
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  test('should render all options as buttons', () => {
+    const options = [
+      { value: 'option1', label: 'Option 1' },
+      { value: 'option2', label: 'Option 2' },
+    ];
+
+    render(
+      <TestWrapper>
+        <ButtonSelector
+          value="option1"
+          onChange={mockOnChange}
+          options={options}
+          label="Test Label"
+        />
+      </TestWrapper>
+    );
+
+    expect(screen.getByText('Test Label')).toBeInTheDocument();
+    expect(screen.getByText('Option 1')).toBeInTheDocument();
+    expect(screen.getByText('Option 2')).toBeInTheDocument();
+  });
+
+  test('should highlight selected button with filled variant', () => {
+    const options = [
+      { value: 'option1', label: 'Option 1' },
+      { value: 'option2', label: 'Option 2' },
+    ];
+
+    render(
+      <TestWrapper>
+        <ButtonSelector
+          value="option1"
+          onChange={mockOnChange}
+          options={options}
+          label="Selection Label"
+        />
+      </TestWrapper>
+    );
+
+    const selectedButton = screen.getByRole('button', { name: 'Option 1' });
+    const unselectedButton = screen.getByRole('button', { name: 'Option 2' });
+
+    // Check data-variant attribute for filled/outline
+    expect(selectedButton).toHaveAttribute('data-variant', 'filled');
+    expect(unselectedButton).toHaveAttribute('data-variant', 'outline');
+    expect(screen.getByText('Selection Label')).toBeInTheDocument();
+  });
+
+  test('should call onChange when button is clicked', () => {
+    const options = [
+      { value: 'option1', label: 'Option 1' },
+      { value: 'option2', label: 'Option 2' },
+    ];
+
+    render(
+      <TestWrapper>
+        <ButtonSelector
+          value="option1"
+          onChange={mockOnChange}
+          options={options}
+        />
+      </TestWrapper>
+    );
+
+    fireEvent.click(screen.getByRole('button', { name: 'Option 2' }));
+
+    expect(mockOnChange).toHaveBeenCalledWith('option2');
+  });
+
+  test('should handle undefined value (no selection)', () => {
+    const options = [
+      { value: 'option1', label: 'Option 1' },
+      { value: 'option2', label: 'Option 2' },
+    ];
+
+    render(
+      <TestWrapper>
+        <ButtonSelector
+          value={undefined}
+          onChange={mockOnChange}
+          options={options}
+        />
+      </TestWrapper>
+    );
+
+    // Both buttons should be outlined when no value is selected
+    const button1 = screen.getByRole('button', { name: 'Option 1' });
+    const button2 = screen.getByRole('button', { name: 'Option 2' });
+
+    expect(button1).toHaveAttribute('data-variant', 'outline');
+    expect(button2).toHaveAttribute('data-variant', 'outline');
+  });
+
+  test.each([
+    {
+      description: 'disable buttons when disabled prop is true',
+      options: [
+        { value: 'option1', label: 'Option 1' },
+        { value: 'option2', label: 'Option 2' },
+      ],
+      globalDisabled: true,
+      expectedStates: [true, true],
+    },
+    {
+      description: 'disable individual options when option.disabled is true',
+      options: [
+        { value: 'option1', label: 'Option 1' },
+        { value: 'option2', label: 'Option 2', disabled: true },
+      ],
+      globalDisabled: false,
+      expectedStates: [false, true],
+    },
+  ])('should $description', ({ options, globalDisabled, expectedStates }) => {
+    render(
+      <TestWrapper>
+        <ButtonSelector
+          value="option1"
+          onChange={mockOnChange}
+          options={options}
+          disabled={globalDisabled}
+        />
+      </TestWrapper>
+    );
+
+    options.forEach((option, index) => {
+      const button = screen.getByRole('button', { name: option.label });
+      expect(button).toHaveProperty('disabled', expectedStates[index]);
+    });
+  });
+
+  test('should not call onChange when disabled button is clicked', () => {
+    const options = [
+      { value: 'option1', label: 'Option 1' },
+      { value: 'option2', label: 'Option 2', disabled: true },
+    ];
+
+    render(
+      <TestWrapper>
+        <ButtonSelector
+          value="option1"
+          onChange={mockOnChange}
+          options={options}
+        />
+      </TestWrapper>
+    );
+
+    fireEvent.click(screen.getByRole('button', { name: 'Option 2' }));
+
+    expect(mockOnChange).not.toHaveBeenCalled();
+  });
+
+  test('should not apply fullWidth styling when fullWidth is false', () => {
+    const options = [
+      { value: 'option1', label: 'Option 1' },
+      { value: 'option2', label: 'Option 2' },
+    ];
+
+    render(
+      <TestWrapper>
+        <ButtonSelector
+          value="option1"
+          onChange={mockOnChange}
+          options={options}
+          fullWidth={false}
+          label="Layout Label"
+        />
+      </TestWrapper>
+    );
+
+    const button = screen.getByRole('button', { name: 'Option 1' });
+    expect(button).not.toHaveStyle({ flex: '1' });
+    expect(screen.getByText('Layout Label')).toBeInTheDocument();
+  });
+
+  test('should not render label element when not provided', () => {
+    const options = [
+      { value: 'option1', label: 'Option 1' },
+      { value: 'option2', label: 'Option 2' },
+    ];
+
+    const { container } = render(
+      <TestWrapper>
+        <ButtonSelector
+          value="option1"
+          onChange={mockOnChange}
+          options={options}
+        />
+      </TestWrapper>
+    );
+
+    // Should render buttons
+    expect(screen.getByText('Option 1')).toBeInTheDocument();
+    expect(screen.getByText('Option 2')).toBeInTheDocument();
+    
+    // Stack should only contain the Group (buttons), no Text element for label
+    const stackElement = container.querySelector('[class*="mantine-Stack-root"]');
+    expect(stackElement?.children).toHaveLength(1); // Only the Group, no label Text
+  });
+});

frontend/src/components/shared/ButtonSelector.tsx

@@ -0,0 +1,59 @@
+import { Button, Group, Stack, Text } from "@mantine/core";
+
+export interface ButtonOption<T> {
+  value: T;
+  label: string;
+  disabled?: boolean;
+}
+
+interface ButtonSelectorProps<T> {
+  value: T | undefined;
+  onChange: (value: T) => void;
+  options: ButtonOption<T>[];
+  label?: string;
+  disabled?: boolean;
+  fullWidth?: boolean;
+}
+
+const ButtonSelector = <T extends string>({
+  value,
+  onChange,
+  options,
+  label = undefined,
+  disabled = false,
+  fullWidth = true,
+}: ButtonSelectorProps<T>) => {
+  return (
+    <Stack gap='var(--mantine-spacing-sm)'>
+      {/* Label (if it exists) */}
+      {label && <Text style={{
+        fontSize: "var(--mantine-font-size-sm)",
+        lineHeight: "var(--mantine-line-height-sm)",
+        fontWeight: "var(--font-weight-medium)",
+      }}>{label}</Text>}
+
+      {/* Buttons */}
+      <Group gap='4px'>
+        {options.map((option) => (
+          <Button
+            key={option.value}
+            variant={value === option.value ? 'filled' : 'outline'}
+            color={value === option.value ? 'var(--color-primary-500)' : 'var(--text-muted)'}
+            onClick={() => onChange(option.value)}
+            disabled={disabled || option.disabled}
+            style={{
+              flex: fullWidth ? 1 : undefined,
+              height: 'auto',
+              minHeight: '2.5rem',
+              fontSize: 'var(--mantine-font-size-sm)'
+            }}
+          >
+            {option.label}
+          </Button>
+        ))}
+      </Group>
+    </Stack>
+  );
+};
+
+export default ButtonSelector;

frontend/src/components/shared/FileCard.tsx

@@ -12,7 +12,7 @@ import { useIndexedDBThumbnail } from "../../hooks/useIndexedDBThumbnail";
 
 interface FileCardProps {
   file: File;
-  record?: StirlingFileStub;
+  fileStub?: StirlingFileStub;
   onRemove: () => void;
   onDoubleClick?: () => void;
   onView?: () => void;
@@ -22,12 +22,11 @@ interface FileCardProps {
   isSupported?: boolean; // Whether the file format is supported by the current tool
 }
 
-const FileCard = ({ file, record, onRemove, onDoubleClick, onView, onEdit, isSelected, onSelect, isSupported = true }: FileCardProps) => {
+const FileCard = ({ file, fileStub, onRemove, onDoubleClick, onView, onEdit, isSelected, onSelect, isSupported = true }: FileCardProps) => {
   const { t } = useTranslation();
   // Use record thumbnail if available, otherwise fall back to IndexedDB lookup
-  const fileMetadata = record ? { id: record.id, name: record.name, type: record.type, size: record.size, lastModified: record.lastModified } : null;
-  const { thumbnail: indexedDBThumb, isGenerating } = useIndexedDBThumbnail(fileMetadata);
-  const thumb = record?.thumbnailUrl || indexedDBThumb;
+  const { thumbnail: indexedDBThumb, isGenerating } = useIndexedDBThumbnail(fileStub);
+  const thumb = fileStub?.thumbnailUrl || indexedDBThumb;
   const [isHovered, setIsHovered] = useState(false);
 
   return (
@@ -177,7 +176,7 @@ const FileCard = ({ file, record, onRemove, onDoubleClick, onView, onEdit, isSel
           <Badge color="blue" variant="light" size="sm">
             {getFileDate(file)}
           </Badge>
-          {record?.id && (
+          {fileStub?.id && (
             <Badge
               color="green"
               variant="light"

frontend/src/components/shared/FileGrid.tsx

@@ -139,7 +139,7 @@ const FileGrid = ({
             <FileCard
               key={fileId + idx}
               file={item.file}
-              record={item.record}
+              fileStub={item.record}
               onRemove={onRemove ? () => onRemove(originalIdx) : () => {}}
               onDoubleClick={onDoubleClick && supported ? () => onDoubleClick(item) : undefined}
               onView={onView && supported ? () => onView(item) : undefined}

frontend/src/components/shared/ToolChain.tsx

@@ -135,7 +135,7 @@ const ToolChain: React.FC<ToolChainProps> = ({
         whiteSpace: 'nowrap',
         overflow: 'hidden',
         textOverflow: 'ellipsis',
-        maxWidth: `${maxWidth}px`,
+        maxWidth: `${maxWidth}`,
         cursor: isTruncated ? 'help' : 'default'
       }}
     >

frontend/src/components/tools/addPassword/AddPasswordSettings.tsx

@@ -4,7 +4,7 @@ import { AddPasswordParameters } from "../../../hooks/tools/addPassword/useAddPa
 
 interface AddPasswordSettingsProps {
   parameters: AddPasswordParameters;
-  onParameterChange: (key: keyof AddPasswordParameters, value: any) => void;
+  onParameterChange: <K extends keyof AddPasswordParameters>(key: K, value: AddPasswordParameters[K]) => void;
   disabled?: boolean;
 }
 

frontend/src/components/tools/addWatermark/WatermarkTypeSettings.tsx

@@ -1,5 +1,5 @@
-import { Button, Stack } from "@mantine/core";
 import { useTranslation } from "react-i18next";
+import ButtonSelector from "../../shared/ButtonSelector";
 
 interface WatermarkTypeSettingsProps {
   watermarkType?: 'text' | 'image';
@@ -11,32 +11,21 @@ const WatermarkTypeSettings = ({ watermarkType, onWatermarkTypeChange, disabled
   const { t } = useTranslation();
 
   return (
-    <Stack gap="sm">
-      <div style={{ display: 'flex', gap: '4px' }}>
-        <Button
-          variant={watermarkType === 'text' ? 'filled' : 'outline'}
-          color={watermarkType === 'text' ? 'blue' : 'var(--text-muted)'}
-          onClick={() => onWatermarkTypeChange('text')}
-          disabled={disabled}
-          style={{ flex: 1, height: 'auto', minHeight: '40px', fontSize: '11px' }}
-        >
-          <div style={{ textAlign: 'center', lineHeight: '1.1', fontSize: '11px' }}>
-            {t('watermark.watermarkType.text', 'Text')}
-          </div>
-        </Button>
-        <Button
-          variant={watermarkType === 'image' ? 'filled' : 'outline'}
-          color={watermarkType === 'image' ? 'blue' : 'var(--text-muted)'}
-          onClick={() => onWatermarkTypeChange('image')}
-          disabled={disabled}
-          style={{ flex: 1, height: 'auto', minHeight: '40px', fontSize: '11px' }}
-        >
-          <div style={{ textAlign: 'center', lineHeight: '1.1', fontSize: '11px' }}>
-            {t('watermark.watermarkType.image', 'Image')}
-          </div>
-        </Button>
-      </div>
-    </Stack>
+    <ButtonSelector
+      value={watermarkType}
+      onChange={onWatermarkTypeChange}
+      options={[
+        {
+          value: 'text',
+          label: t('watermark.watermarkType.text', 'Text'),
+        },
+        {
+          value: 'image',
+          label: t('watermark.watermarkType.image', 'Image'),
+        },
+      ]}
+      disabled={disabled}
+    />
   );
 };
 

frontend/src/components/tools/autoRename/AutoRenameSettings.tsx

@@ -0,0 +1,24 @@
+import React from 'react';
+import { useTranslation } from 'react-i18next';
+import { AutoRenameParameters } from '../../../hooks/tools/autoRename/useAutoRenameParameters';
+
+interface AutoRenameSettingsProps {
+  parameters: AutoRenameParameters;
+  onParameterChange: <K extends keyof AutoRenameParameters>(parameter: K, value: AutoRenameParameters[K]) => void;
+  disabled?: boolean;
+}
+
+const AutoRenameSettings: React.FC<AutoRenameSettingsProps> = (
+  ) => {
+  const { t } = useTranslation();
+
+  return (
+    <div className="auto-rename-settings">
+      <p className="text-muted">
+        {t('autoRename.description', 'This tool will automatically rename PDF files based on their content. It analyzes the document to find the most suitable title from the text.')}
+      </p>
+    </div>
+  );
+};
+
+export default AutoRenameSettings;

frontend/src/components/tools/automate/ToolSelector.tsx

@@ -1,4 +1,4 @@
-import React, { useState, useMemo, useCallback, useRef, useEffect } from 'react';
+import { useState, useMemo, useCallback, useRef, useEffect } from 'react';
 import { useTranslation } from 'react-i18next';
 import { Stack, Text, ScrollArea } from '@mantine/core';
 import { ToolRegistryEntry } from '../../../data/toolsTaxonomy';
@@ -93,7 +93,7 @@ export default function ToolSelector({
 
   const renderedTools = useMemo(() =>
     displayGroups.map((subcategory) =>
-      renderToolButtons(t, subcategory, null, handleToolSelect, !isSearching)
+      renderToolButtons(t, subcategory, null, handleToolSelect, !isSearching, true)
     ), [displayGroups, handleToolSelect, isSearching, t]
   );
 
@@ -150,7 +150,7 @@ export default function ToolSelector({
           <div onClick={handleSearchFocus} style={{ cursor: 'pointer',
            borderRadius: "var(--mantine-radius-lg)" }}>
             <ToolButton id='tool' tool={toolRegistry[selectedValue]}  isSelected={false}
-          onSelect={()=>{}} rounded={true}></ToolButton>
+          onSelect={()=>{}} rounded={true} disableNavigation={true}></ToolButton>
           </div>
         ) : (
           // Show search input when no tool selected OR when dropdown is opened

frontend/src/components/tools/changePermissions/ChangePermissionsSettings.tsx

@@ -4,7 +4,7 @@ import { ChangePermissionsParameters } from "../../../hooks/tools/changePermissi
 
 interface ChangePermissionsSettingsProps {
   parameters: ChangePermissionsParameters;
-  onParameterChange: (key: keyof ChangePermissionsParameters, value: boolean) => void;
+  onParameterChange: <K extends keyof ChangePermissionsParameters>(key: K, value: ChangePermissionsParameters[K]) => void;
   disabled?: boolean;
 }
 

frontend/src/components/tools/compress/CompressSettings.tsx

@@ -1,11 +1,12 @@
 import React, { useState } from "react";
-import { Button, Stack, Text, NumberInput, Select, Divider } from "@mantine/core";
+import { Stack, Text, NumberInput, Select, Divider } from "@mantine/core";
 import { useTranslation } from "react-i18next";
 import { CompressParameters } from "../../../hooks/tools/compress/useCompressParameters";
+import ButtonSelector from "../../shared/ButtonSelector";
 
 interface CompressSettingsProps {
   parameters: CompressParameters;
-  onParameterChange: (key: keyof CompressParameters, value: any) => void;
+  onParameterChange: <K extends keyof CompressParameters>(key: K, value: CompressParameters[K]) => void;
   disabled?: boolean;
 }
 
@@ -18,33 +19,16 @@ const CompressSettings = ({ parameters, onParameterChange, disabled = false }: C
 
       <Divider ml='-md'></Divider>
       {/* Compression Method */}
-      <Stack gap="sm">
-        <Text size="sm" fw={500}>Compression Method</Text>
-        <div style={{ display: 'flex', gap: '4px' }}>
-          <Button
-            variant={parameters.compressionMethod === 'quality' ? 'filled' : 'outline'}
-            color={parameters.compressionMethod === 'quality' ? 'blue' : 'var(--text-muted)'}
-            onClick={() => onParameterChange('compressionMethod', 'quality')}
-            disabled={disabled}
-            style={{ flex: 1, height: 'auto', minHeight: '40px', fontSize: '11px' }}
-          >
-            <div style={{ textAlign: 'center', lineHeight: '1.1', fontSize: '11px' }}>
-              Quality
-            </div>
-          </Button>
-          <Button
-            variant={parameters.compressionMethod === 'filesize' ? 'filled' : 'outline'}
-            color={parameters.compressionMethod === 'filesize' ? 'blue' : 'var(--text-muted)'}
-            onClick={() => onParameterChange('compressionMethod', 'filesize')}
-            disabled={disabled}
-            style={{ flex: 1, height: 'auto', minHeight: '40px', fontSize: '11px' }}
-          >
-            <div style={{ textAlign: 'center', lineHeight: '1.1', fontSize: '11px' }}>
-              File Size
-            </div>
-          </Button>
-        </div>
-      </Stack>
+      <ButtonSelector
+        label={t('compress.method.title', 'Compression Method')}
+        value={parameters.compressionMethod}
+        onChange={(value) => onParameterChange('compressionMethod', value)}
+        options={[
+          { value: 'quality', label: t('compress.method.quality', 'Quality') },
+          { value: 'filesize', label: t('compress.method.filesize', 'File Size') },
+        ]}
+        disabled={disabled}
+      />
 
       {/* Quality Adjustment */}
       {parameters.compressionMethod === 'quality' && (

frontend/src/components/tools/convert/ConvertFromEmailSettings.tsx

@@ -5,40 +5,40 @@ import { ConvertParameters } from '../../../hooks/tools/convert/useConvertParame
 
 interface ConvertFromEmailSettingsProps {
   parameters: ConvertParameters;
-  onParameterChange: (key: keyof ConvertParameters, value: any) => void;
+  onParameterChange: <K extends keyof ConvertParameters>(key: K, value: ConvertParameters[K]) => void;
   disabled?: boolean;
 }
 
-const ConvertFromEmailSettings = ({ 
-  parameters, 
-  onParameterChange, 
-  disabled = false 
+const ConvertFromEmailSettings = ({
+  parameters,
+  onParameterChange,
+  disabled = false
 }: ConvertFromEmailSettingsProps) => {
   const { t } = useTranslation();
 
   return (
     <Stack gap="sm" data-testid="email-settings">
       <Text size="sm" fw={500}>{t("convert.emailOptions", "Email to PDF Options")}:</Text>
-      
+
       <Checkbox
         label={t("convert.includeAttachments", "Include email attachments")}
         checked={parameters.emailOptions.includeAttachments}
-        onChange={(event) => onParameterChange('emailOptions', { 
-          ...parameters.emailOptions, 
-          includeAttachments: event.currentTarget.checked 
+        onChange={(event) => onParameterChange('emailOptions', {
+          ...parameters.emailOptions,
+          includeAttachments: event.currentTarget.checked
         })}
         disabled={disabled}
         data-testid="include-attachments-checkbox"
       />
-      
+
       {parameters.emailOptions.includeAttachments && (
         <Stack gap="xs">
           <Text size="xs" fw={500}>{t("convert.maxAttachmentSize", "Maximum attachment size (MB)")}:</Text>
           <NumberInput
             value={parameters.emailOptions.maxAttachmentSizeMB}
-            onChange={(value) => onParameterChange('emailOptions', { 
-              ...parameters.emailOptions, 
-              maxAttachmentSizeMB: Number(value) || 10 
+            onChange={(value) => onParameterChange('emailOptions', {
+              ...parameters.emailOptions,
+              maxAttachmentSizeMB: Number(value) || 10
             })}
             min={1}
             max={100}
@@ -48,24 +48,24 @@ const ConvertFromEmailSettings = ({
           />
         </Stack>
       )}
-      
+
       <Checkbox
         label={t("convert.includeAllRecipients", "Include CC and BCC recipients in header")}
         checked={parameters.emailOptions.includeAllRecipients}
-        onChange={(event) => onParameterChange('emailOptions', { 
-          ...parameters.emailOptions, 
-          includeAllRecipients: event.currentTarget.checked 
+        onChange={(event) => onParameterChange('emailOptions', {
+          ...parameters.emailOptions,
+          includeAllRecipients: event.currentTarget.checked
         })}
         disabled={disabled}
         data-testid="include-all-recipients-checkbox"
       />
-      
+
       <Checkbox
         label={t("convert.downloadHtml", "Download HTML intermediate file instead of PDF")}
         checked={parameters.emailOptions.downloadHtml}
-        onChange={(event) => onParameterChange('emailOptions', { 
-          ...parameters.emailOptions, 
-          downloadHtml: event.currentTarget.checked 
+        onChange={(event) => onParameterChange('emailOptions', {
+          ...parameters.emailOptions,
+          downloadHtml: event.currentTarget.checked
         })}
         disabled={disabled}
         data-testid="download-html-checkbox"
@@ -74,4 +74,4 @@ const ConvertFromEmailSettings = ({
   );
 };
 
-export default ConvertFromEmailSettings;
+export default ConvertFromEmailSettings;

frontend/src/components/tools/convert/ConvertFromImageSettings.tsx

@@ -6,7 +6,7 @@ import { ConvertParameters } from "../../../hooks/tools/convert/useConvertParame
 
 interface ConvertFromImageSettingsProps {
   parameters: ConvertParameters;
-  onParameterChange: (key: keyof ConvertParameters, value: any) => void;
+  onParameterChange: <K extends keyof ConvertParameters>(key: K, value: ConvertParameters[K]) => void;
   disabled?: boolean;
 }
 

frontend/src/components/tools/convert/ConvertFromWebSettings.tsx

@@ -5,28 +5,28 @@ import { ConvertParameters } from '../../../hooks/tools/convert/useConvertParame
 
 interface ConvertFromWebSettingsProps {
   parameters: ConvertParameters;
-  onParameterChange: (key: keyof ConvertParameters, value: any) => void;
+  onParameterChange: <K extends keyof ConvertParameters>(key: K, value: ConvertParameters[K]) => void;
   disabled?: boolean;
 }
 
-const ConvertFromWebSettings = ({ 
-  parameters, 
-  onParameterChange, 
-  disabled = false 
+const ConvertFromWebSettings = ({
+  parameters,
+  onParameterChange,
+  disabled = false
 }: ConvertFromWebSettingsProps) => {
   const { t } = useTranslation();
 
   return (
     <Stack gap="sm" data-testid="web-settings">
       <Text size="sm" fw={500}>{t("convert.webOptions", "Web to PDF Options")}:</Text>
-      
+
       <Stack gap="xs">
         <Text size="xs" fw={500}>{t("convert.zoomLevel", "Zoom Level")}:</Text>
         <NumberInput
           value={parameters.htmlOptions.zoomLevel}
-          onChange={(value) => onParameterChange('htmlOptions', { 
-            ...parameters.htmlOptions, 
-            zoomLevel: Number(value) || 1.0 
+          onChange={(value) => onParameterChange('htmlOptions', {
+            ...parameters.htmlOptions,
+            zoomLevel: Number(value) || 1.0
           })}
           min={0.1}
           max={3.0}
@@ -36,9 +36,9 @@ const ConvertFromWebSettings = ({
         />
         <Slider
           value={parameters.htmlOptions.zoomLevel}
-          onChange={(value) => onParameterChange('htmlOptions', { 
-            ...parameters.htmlOptions, 
-            zoomLevel: value 
+          onChange={(value) => onParameterChange('htmlOptions', {
+            ...parameters.htmlOptions,
+            zoomLevel: value
           })}
           min={0.1}
           max={3.0}
@@ -51,4 +51,4 @@ const ConvertFromWebSettings = ({
   );
 };
 
-export default ConvertFromWebSettings;
+export default ConvertFromWebSettings;

frontend/src/components/tools/convert/ConvertSettings.tsx

@@ -26,7 +26,7 @@ import { StirlingFile } from "../../../types/fileContext";
 
 interface ConvertSettingsProps {
   parameters: ConvertParameters;
-  onParameterChange: (key: keyof ConvertParameters, value: any) => void;
+  onParameterChange: <K extends keyof ConvertParameters>(key: K, value: ConvertParameters[K]) => void;
   getAvailableToExtensions: (fromExtension: string) => Array<{value: string, label: string, group: string}>;
   selectedFiles: StirlingFile[];
   disabled?: boolean;

frontend/src/components/tools/convert/ConvertToImageSettings.tsx

@@ -6,7 +6,7 @@ import { ConvertParameters } from "../../../hooks/tools/convert/useConvertParame
 
 interface ConvertToImageSettingsProps {
   parameters: ConvertParameters;
-  onParameterChange: (key: keyof ConvertParameters, value: any) => void;
+  onParameterChange: <K extends keyof ConvertParameters>(key: K, value: ConvertParameters[K]) => void;
   disabled?: boolean;
 }
 

frontend/src/components/tools/convert/ConvertToPdfaSettings.tsx

@@ -7,16 +7,16 @@ import { StirlingFile } from '../../../types/fileContext';
 
 interface ConvertToPdfaSettingsProps {
   parameters: ConvertParameters;
-  onParameterChange: (key: keyof ConvertParameters, value: any) => void;
+  onParameterChange: <K extends keyof ConvertParameters>(key: K, value: ConvertParameters[K]) => void;
   selectedFiles: StirlingFile[];
   disabled?: boolean;
 }
 
-const ConvertToPdfaSettings = ({ 
-  parameters, 
+const ConvertToPdfaSettings = ({
+  parameters,
   onParameterChange,
   selectedFiles,
-  disabled = false 
+  disabled = false
 }: ConvertToPdfaSettingsProps) => {
   const { t } = useTranslation();
   const { hasDigitalSignatures, isChecking } = usePdfSignatureDetection(selectedFiles);
@@ -29,7 +29,7 @@ const ConvertToPdfaSettings = ({
   return (
     <Stack gap="sm" data-testid="pdfa-settings">
       <Text size="sm" fw={500}>{t("convert.pdfaOptions", "PDF/A Options")}:</Text>
-      
+
       {hasDigitalSignatures && (
         <Alert color="yellow">
           <Text size="sm">
@@ -37,14 +37,14 @@ const ConvertToPdfaSettings = ({
           </Text>
         </Alert>
       )}
-      
+
       <Stack gap="xs">
         <Text size="xs" fw={500}>{t("convert.outputFormat", "Output Format")}:</Text>
         <Select
           value={parameters.pdfaOptions.outputFormat}
-          onChange={(value) => onParameterChange('pdfaOptions', { 
-            ...parameters.pdfaOptions, 
-            outputFormat: value || 'pdfa-1' 
+          onChange={(value) => onParameterChange('pdfaOptions', {
+            ...parameters.pdfaOptions,
+            outputFormat: value || 'pdfa-1'
           })}
           data={pdfaFormatOptions}
           disabled={disabled || isChecking}
@@ -58,4 +58,4 @@ const ConvertToPdfaSettings = ({
   );
 };
 
-export default ConvertToPdfaSettings;
+export default ConvertToPdfaSettings;

frontend/src/components/tools/merge/MergeFileSorter.test.tsx

@@ -0,0 +1,182 @@
+import { describe, expect, test, vi, beforeEach } from 'vitest';
+import { render, screen, fireEvent } from '@testing-library/react';
+import { MantineProvider } from '@mantine/core';
+import MergeFileSorter from './MergeFileSorter';
+
+// Mock useTranslation with predictable return values
+const mockT = vi.fn((key: string) => `mock-${key}`);
+vi.mock('react-i18next', () => ({
+  useTranslation: () => ({ t: mockT })
+}));
+
+// Wrapper component to provide Mantine context
+const TestWrapper = ({ children }: { children: React.ReactNode }) => (
+  <MantineProvider>{children}</MantineProvider>
+);
+
+describe('MergeFileSorter', () => {
+  const mockOnSortFiles = vi.fn();
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  test('should render sort options dropdown, direction toggle, and sort button', () => {
+    render(
+      <TestWrapper>
+        <MergeFileSorter onSortFiles={mockOnSortFiles} />
+      </TestWrapper>
+    );
+
+    // Should have a select dropdown (Mantine Select uses textbox role)
+    expect(screen.getByRole('textbox')).toBeInTheDocument();
+
+    // Should have direction toggle button
+    const buttons = screen.getAllByRole('button');
+    expect(buttons).toHaveLength(2); // ActionIcon + Sort Button
+
+    // Should have sort button with text
+    expect(screen.getByText('mock-merge.sortBy.sort')).toBeInTheDocument();
+  });
+
+  test('should render description text', () => {
+    render(
+      <TestWrapper>
+        <MergeFileSorter onSortFiles={mockOnSortFiles} />
+      </TestWrapper>
+    );
+
+    expect(screen.getByText('mock-merge.sortBy.description')).toBeInTheDocument();
+  });
+
+  test('should have filename selected by default', () => {
+    render(
+      <TestWrapper>
+        <MergeFileSorter onSortFiles={mockOnSortFiles} />
+      </TestWrapper>
+    );
+
+    const select = screen.getByRole('textbox');
+    expect(select).toHaveValue('mock-merge.sortBy.filename');
+  });
+
+  test('should show ascending direction by default', () => {
+    render(
+      <TestWrapper>
+        <MergeFileSorter onSortFiles={mockOnSortFiles} />
+      </TestWrapper>
+    );
+
+    // Should show ascending arrow icon
+    const directionButton = screen.getAllByRole('button')[0];
+    expect(directionButton).toHaveAttribute('title', 'mock-merge.sortBy.ascending');
+  });
+
+  test('should toggle direction when direction button is clicked', () => {
+    render(
+      <TestWrapper>
+        <MergeFileSorter onSortFiles={mockOnSortFiles} />
+      </TestWrapper>
+    );
+
+    const directionButton = screen.getAllByRole('button')[0];
+
+    // Initially ascending
+    expect(directionButton).toHaveAttribute('title', 'mock-merge.sortBy.ascending');
+
+    // Click to toggle to descending
+    fireEvent.click(directionButton);
+    expect(directionButton).toHaveAttribute('title', 'mock-merge.sortBy.descending');
+
+    // Click again to toggle back to ascending
+    fireEvent.click(directionButton);
+    expect(directionButton).toHaveAttribute('title', 'mock-merge.sortBy.ascending');
+  });
+
+  test('should call onSortFiles with correct parameters when sort button is clicked', () => {
+    render(
+      <TestWrapper>
+        <MergeFileSorter onSortFiles={mockOnSortFiles} />
+      </TestWrapper>
+    );
+
+    const sortButton = screen.getByText('mock-merge.sortBy.sort');
+    fireEvent.click(sortButton);
+
+    // Should be called with default values (filename, ascending)
+    expect(mockOnSortFiles).toHaveBeenCalledWith('filename', true);
+  });
+
+  test('should call onSortFiles with dateModified when dropdown is changed', () => {
+    render(
+      <TestWrapper>
+        <MergeFileSorter onSortFiles={mockOnSortFiles} />
+      </TestWrapper>
+    );
+
+    // Open the dropdown by clicking on the current selected value
+    const currentSelection = screen.getByText('mock-merge.sortBy.filename');
+    fireEvent.mouseDown(currentSelection);
+    
+    // Click on the dateModified option
+    const dateModifiedOption = screen.getByText('mock-merge.sortBy.dateModified');
+    fireEvent.click(dateModifiedOption);
+
+    const sortButton = screen.getByText('mock-merge.sortBy.sort');
+    fireEvent.click(sortButton);
+
+    expect(mockOnSortFiles).toHaveBeenCalledWith('dateModified', true);
+  });
+
+  test('should call onSortFiles with descending direction when toggled', () => {
+    render(
+      <TestWrapper>
+        <MergeFileSorter onSortFiles={mockOnSortFiles} />
+      </TestWrapper>
+    );
+
+    const directionButton = screen.getAllByRole('button')[0];
+    const sortButton = screen.getByText('mock-merge.sortBy.sort');
+
+    // Toggle to descending
+    fireEvent.click(directionButton);
+
+    // Click sort
+    fireEvent.click(sortButton);
+
+    expect(mockOnSortFiles).toHaveBeenCalledWith('filename', false);
+  });
+
+  test('should handle complex user interaction sequence', () => {
+    render(
+      <TestWrapper>
+        <MergeFileSorter onSortFiles={mockOnSortFiles} />
+      </TestWrapper>
+    );
+
+    const directionButton = screen.getAllByRole('button')[0];
+    const sortButton = screen.getByText('mock-merge.sortBy.sort');
+
+    // 1. Change to dateModified
+    const currentSelection = screen.getByText('mock-merge.sortBy.filename');
+    fireEvent.mouseDown(currentSelection);
+    const dateModifiedOption = screen.getByText('mock-merge.sortBy.dateModified');
+    fireEvent.click(dateModifiedOption);
+
+    // 2. Toggle to descending
+    fireEvent.click(directionButton);
+
+    // 3. Click sort
+    fireEvent.click(sortButton);
+
+    expect(mockOnSortFiles).toHaveBeenCalledWith('dateModified', false);
+
+    // 4. Toggle back to ascending
+    fireEvent.click(directionButton);
+
+    // 5. Sort again
+    fireEvent.click(sortButton);
+
+    expect(mockOnSortFiles).toHaveBeenCalledWith('dateModified', true);
+  });
+});

frontend/src/components/tools/merge/MergeFileSorter.tsx

@@ -0,0 +1,77 @@
+import React, { useState } from 'react';
+import { Group, Button, Text, ActionIcon, Stack, Select } from '@mantine/core';
+import { useTranslation } from 'react-i18next';
+import SortIcon from '@mui/icons-material/Sort';
+import ArrowUpwardIcon from '@mui/icons-material/ArrowUpward';
+import ArrowDownwardIcon from '@mui/icons-material/ArrowDownward';
+
+interface MergeFileSorterProps {
+  onSortFiles: (sortType: 'filename' | 'dateModified', ascending: boolean) => void;
+  disabled?: boolean;
+}
+
+const MergeFileSorter: React.FC<MergeFileSorterProps> = ({
+  onSortFiles,
+  disabled = false,
+}) => {
+  const { t } = useTranslation();
+  const [sortType, setSortType] = useState<'filename' | 'dateModified'>('filename');
+  const [ascending, setAscending] = useState(true);
+
+  const sortOptions = [
+    { value: 'filename', label: t('merge.sortBy.filename', 'File Name') },
+    { value: 'dateModified', label: t('merge.sortBy.dateModified', 'Date Modified') },
+  ];
+
+  const handleSort = () => {
+    onSortFiles(sortType, ascending);
+  };
+
+  const handleDirectionToggle = () => {
+    setAscending(!ascending);
+  };
+
+  return (
+    <Stack gap="xs">
+      <Text size="sm" fw={500}>
+        {t('merge.sortBy.description', "Files will be merged in the order they're selected. Drag to reorder or sort below.")}
+      </Text>
+      <Stack gap="xs">
+        <Group gap="xs" align="end" justify="space-between">
+          <Select
+            data={sortOptions}
+            value={sortType}
+            onChange={(value) => setSortType(value as 'filename' | 'dateModified')}
+            disabled={disabled}
+            label={t('merge.sortBy.label', 'Sort By')}
+            size='xs'
+            style={{ flex: 1 }}
+          />
+
+          <ActionIcon
+            variant="light"
+            size="md"
+            onClick={handleDirectionToggle}
+            disabled={disabled}
+            title={ascending ? t('merge.sortBy.ascending', 'Ascending') : t('merge.sortBy.descending', 'Descending')}
+          >
+            {ascending ? <ArrowUpwardIcon /> : <ArrowDownwardIcon />}
+          </ActionIcon>
+        </Group>
+
+        <Button
+          variant="light"
+          size="xs"
+          leftSection={<SortIcon />}
+          onClick={handleSort}
+          disabled={disabled}
+          fullWidth
+        >
+          {t('merge.sortBy.sort', 'Sort')}
+        </Button>
+      </Stack>
+    </Stack>
+  );
+};
+
+export default MergeFileSorter;

frontend/src/components/tools/merge/MergeSettings.test.tsx

@@ -0,0 +1,100 @@
+import { describe, expect, test, vi, beforeEach } from 'vitest';
+import { render, screen, fireEvent } from '@testing-library/react';
+import { MantineProvider } from '@mantine/core';
+import MergeSettings from './MergeSettings';
+import { MergeParameters } from '../../../hooks/tools/merge/useMergeParameters';
+
+// Mock useTranslation with predictable return values
+const mockT = vi.fn((key: string) => `mock-${key}`);
+vi.mock('react-i18next', () => ({
+  useTranslation: () => ({ t: mockT })
+}));
+
+// Wrapper component to provide Mantine context
+const TestWrapper = ({ children }: { children: React.ReactNode }) => (
+  <MantineProvider>{children}</MantineProvider>
+);
+
+describe('MergeSettings', () => {
+  const defaultParameters: MergeParameters = {
+    removeDigitalSignature: false,
+    generateTableOfContents: false,
+  };
+
+  const mockOnParameterChange = vi.fn();
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  test('should render both merge option checkboxes', () => {
+    render(
+      <TestWrapper>
+        <MergeSettings
+          parameters={defaultParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    // Should render one checkbox for each parameter
+    const expectedCheckboxCount = Object.keys(defaultParameters).length;
+    const checkboxes = screen.getAllByRole('checkbox');
+    expect(checkboxes).toHaveLength(expectedCheckboxCount);
+  });
+
+  test('should show correct initial checkbox states based on parameters', () => {
+    render(
+      <TestWrapper>
+        <MergeSettings
+          parameters={defaultParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    const checkboxes = screen.getAllByRole('checkbox');
+
+    // Both checkboxes should be unchecked initially
+    checkboxes.forEach(checkbox => {
+      expect(checkbox).not.toBeChecked();
+    });
+  });
+
+  test('should call onParameterChange with correct parameters when checkboxes are clicked', () => {
+    render(
+      <TestWrapper>
+        <MergeSettings
+          parameters={defaultParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    const checkboxes = screen.getAllByRole('checkbox');
+
+    // Click the first checkbox (removeDigitalSignature - should toggle from false to true)
+    fireEvent.click(checkboxes[0]);
+    expect(mockOnParameterChange).toHaveBeenCalledWith('removeDigitalSignature', true);
+
+    // Click the second checkbox (generateTableOfContents - should toggle from false to true)
+    fireEvent.click(checkboxes[1]);
+    expect(mockOnParameterChange).toHaveBeenCalledWith('generateTableOfContents', true);
+  });
+
+  test('should call translation function with correct keys', () => {
+    render(
+      <TestWrapper>
+        <MergeSettings
+          parameters={defaultParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    // Verify that translation keys are being called
+    expect(mockT).toHaveBeenCalledWith('merge.removeDigitalSignature', 'Remove digital signature in the merged file?');
+    expect(mockT).toHaveBeenCalledWith('merge.generateTableOfContents', 'Generate table of contents in the merged file?');
+  });
+  
+});

frontend/src/components/tools/merge/MergeSettings.tsx

@@ -0,0 +1,38 @@
+import React from 'react';
+import { Stack, Checkbox } from '@mantine/core';
+import { useTranslation } from 'react-i18next';
+import { MergeParameters } from '../../../hooks/tools/merge/useMergeParameters';
+
+interface MergeSettingsProps {
+  parameters: MergeParameters;
+  onParameterChange: <K extends keyof MergeParameters>(key: K, value: MergeParameters[K]) => void;
+  disabled?: boolean;
+}
+
+const MergeSettings: React.FC<MergeSettingsProps> = ({
+  parameters,
+  onParameterChange,
+  disabled = false,
+}) => {
+  const { t } = useTranslation();
+
+  return (
+    <Stack gap="md">
+      <Checkbox
+        label={t('merge.removeDigitalSignature', 'Remove digital signature in the merged file?')}
+        checked={parameters.removeDigitalSignature}
+        onChange={(event) => onParameterChange('removeDigitalSignature', event.currentTarget.checked)}
+        disabled={disabled}
+      />
+
+      <Checkbox
+        label={t('merge.generateTableOfContents', 'Generate table of contents in the merged file?')}
+        checked={parameters.generateTableOfContents}
+        onChange={(event) => onParameterChange('generateTableOfContents', event.currentTarget.checked)}
+        disabled={disabled}
+      />
+    </Stack>
+  );
+};
+
+export default MergeSettings;

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

@@ -16,7 +16,7 @@ interface AdvancedOption {
 interface AdvancedOCRSettingsProps {
   advancedOptions: string[];
   ocrRenderType?: string;
-  onParameterChange: (key: keyof OCRParameters, value: any) => void;
+  onParameterChange: <K extends keyof OCRParameters>(key: K, value: OCRParameters[K]) => void;
   disabled?: boolean;
 }
 
@@ -40,7 +40,7 @@ const AdvancedOCRSettings: React.FC<AdvancedOCRSettingsProps> = ({
   // Handle individual checkbox changes
   const handleCheckboxChange = (optionValue: string, checked: boolean) => {
     const option = advancedOptionsData.find(opt => opt.value === optionValue);
-    
+
     if (option?.isSpecial) {
       // Handle special options (like compatibility mode) differently
       if (optionValue === 'compatibilityMode') {
@@ -69,7 +69,7 @@ const AdvancedOCRSettings: React.FC<AdvancedOCRSettingsProps> = ({
         <Text size="sm" fw={500} mb="md">
           {t('ocr.settings.advancedOptions.label', 'Processing Options')}
         </Text>
-        
+
         <Stack gap="sm">
           {advancedOptionsData.map((option) => (
             <Checkbox
@@ -87,4 +87,4 @@ const AdvancedOCRSettings: React.FC<AdvancedOCRSettingsProps> = ({
   );
 };
 
-export default AdvancedOCRSettings; 
+export default AdvancedOCRSettings;

frontend/src/components/tools/ocr/OCRSettings.tsx

@@ -6,7 +6,7 @@ import { OCRParameters } from '../../../hooks/tools/ocr/useOCRParameters';
 
 interface OCRSettingsProps {
   parameters: OCRParameters;
-  onParameterChange: (key: keyof OCRParameters, value: any) => void;
+  onParameterChange: <K extends keyof OCRParameters>(key: K, value: OCRParameters[K]) => void;
   disabled?: boolean;
 }
 

frontend/src/components/tools/redact/RedactAdvancedSettings.test.tsx

@@ -0,0 +1,211 @@
+import { describe, expect, test, vi, beforeEach } from 'vitest';
+import { render, screen, fireEvent } from '@testing-library/react';
+import { MantineProvider } from '@mantine/core';
+import RedactAdvancedSettings from './RedactAdvancedSettings';
+import { defaultParameters } from '../../../hooks/tools/redact/useRedactParameters';
+
+// Mock useTranslation
+const mockT = vi.fn((_key: string, fallback: string) => fallback);
+vi.mock('react-i18next', () => ({
+  useTranslation: () => ({ t: mockT })
+}));
+
+// Wrapper component to provide Mantine context
+const TestWrapper = ({ children }: { children: React.ReactNode }) => (
+  <MantineProvider>{children}</MantineProvider>
+);
+
+describe('RedactAdvancedSettings', () => {
+  const mockOnParameterChange = vi.fn();
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  test('should render all advanced settings controls', () => {
+    render(
+      <TestWrapper>
+        <RedactAdvancedSettings
+          parameters={defaultParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    expect(screen.getByText('Box Colour')).toBeInTheDocument();
+    expect(screen.getByText('Custom Extra Padding')).toBeInTheDocument();
+    expect(screen.getByText('Use Regex')).toBeInTheDocument();
+    expect(screen.getByText('Whole Word Search')).toBeInTheDocument();
+    expect(screen.getByText('Convert PDF to PDF-Image (Used to remove text behind the box)')).toBeInTheDocument();
+  });
+
+  test('should display current parameter values', () => {
+    const customParameters = {
+      ...defaultParameters,
+      redactColor: '#FF0000',
+      customPadding: 0.5,
+      useRegex: true,
+      wholeWordSearch: true,
+      convertPDFToImage: false,
+    };
+
+    render(
+      <TestWrapper>
+        <RedactAdvancedSettings
+          parameters={customParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    // Check color input value
+    const colorInput = screen.getByDisplayValue('#FF0000');
+    expect(colorInput).toBeInTheDocument();
+
+    // Check number input value
+    const paddingInput = screen.getByDisplayValue('0.5');
+    expect(paddingInput).toBeInTheDocument();
+
+    // Check checkbox states
+    const useRegexCheckbox = screen.getByLabelText('Use Regex');
+    const wholeWordCheckbox = screen.getByLabelText('Whole Word Search');
+    const convertCheckbox = screen.getByLabelText('Convert PDF to PDF-Image (Used to remove text behind the box)');
+
+    expect(useRegexCheckbox).toBeChecked();
+    expect(wholeWordCheckbox).toBeChecked();
+    expect(convertCheckbox).not.toBeChecked();
+  });
+
+  test('should call onParameterChange when color is changed', () => {
+    render(
+      <TestWrapper>
+        <RedactAdvancedSettings
+          parameters={defaultParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    const colorInput = screen.getByDisplayValue('#000000');
+    fireEvent.change(colorInput, { target: { value: '#FF0000' } });
+
+    expect(mockOnParameterChange).toHaveBeenCalledWith('redactColor', '#FF0000');
+  });
+
+  test('should call onParameterChange when padding is changed', () => {
+    render(
+      <TestWrapper>
+        <RedactAdvancedSettings
+          parameters={defaultParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    const paddingInput = screen.getByDisplayValue('0.1');
+    fireEvent.change(paddingInput, { target: { value: '0.5' } });
+
+    expect(mockOnParameterChange).toHaveBeenCalledWith('customPadding', 0.5);
+  });
+
+  test('should handle invalid padding values', () => {
+    render(
+      <TestWrapper>
+        <RedactAdvancedSettings
+          parameters={defaultParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    const paddingInput = screen.getByDisplayValue('0.1');
+
+    // Simulate NumberInput onChange with invalid value (empty string)
+    const numberInput = paddingInput.closest('.mantine-NumberInput-root');
+    if (numberInput) {
+      // Find the input and trigger change with empty value
+      fireEvent.change(paddingInput, { target: { value: '' } });
+
+      // The component should default to 0.1 for invalid values
+      expect(mockOnParameterChange).toHaveBeenCalledWith('customPadding', 0.1);
+    }
+  });
+
+  test.each([
+    {
+      paramName: 'useRegex' as const,
+      label: 'Use Regex',
+      initialValue: false,
+      expectedValue: true,
+    },
+    {
+      paramName: 'wholeWordSearch' as const,
+      label: 'Whole Word Search',
+      initialValue: false,
+      expectedValue: true,
+    },
+    {
+      paramName: 'convertPDFToImage' as const,
+      label: 'Convert PDF to PDF-Image (Used to remove text behind the box)',
+      initialValue: true,
+      expectedValue: false,
+    },
+  ])('should call onParameterChange when $paramName checkbox is toggled', ({ paramName, label, initialValue, expectedValue }) => {
+    const customParameters = {
+      ...defaultParameters,
+      [paramName]: initialValue,
+    };
+
+    render(
+      <TestWrapper>
+        <RedactAdvancedSettings
+          parameters={customParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    const checkbox = screen.getByLabelText(label);
+    fireEvent.click(checkbox);
+
+    expect(mockOnParameterChange).toHaveBeenCalledWith(paramName, expectedValue);
+  });
+
+  test.each([
+    { controlType: 'color input', getValue: () => screen.getByDisplayValue('#000000') },
+    { controlType: 'padding input', getValue: () => screen.getByDisplayValue('0.1') },
+    { controlType: 'useRegex checkbox', getValue: () => screen.getByLabelText('Use Regex') },
+    { controlType: 'wholeWordSearch checkbox', getValue: () => screen.getByLabelText('Whole Word Search') },
+    { controlType: 'convertPDFToImage checkbox', getValue: () => screen.getByLabelText('Convert PDF to PDF-Image (Used to remove text behind the box)') },
+  ])('should disable $controlType when disabled prop is true', ({ getValue }) => {
+    render(
+      <TestWrapper>
+        <RedactAdvancedSettings
+          parameters={defaultParameters}
+          onParameterChange={mockOnParameterChange}
+          disabled={true}
+        />
+      </TestWrapper>
+    );
+
+    const control = getValue();
+    expect(control).toBeDisabled();
+  });
+
+  test('should have correct padding input constraints', () => {
+    render(
+      <TestWrapper>
+        <RedactAdvancedSettings
+          parameters={defaultParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    // NumberInput in Mantine might not expose these attributes directly on the input element
+    // Instead, check that the NumberInput component is rendered with correct placeholder
+    const paddingInput = screen.getByPlaceholderText('0.1');
+    expect(paddingInput).toBeInTheDocument();
+    expect(paddingInput).toHaveDisplayValue('0.1');
+  });
+});

frontend/src/components/tools/redact/RedactAdvancedSettings.tsx

@@ -0,0 +1,69 @@
+import { Stack, NumberInput, ColorInput, Checkbox } from "@mantine/core";
+import { useTranslation } from "react-i18next";
+import { RedactParameters } from "../../../hooks/tools/redact/useRedactParameters";
+
+interface RedactAdvancedSettingsProps {
+  parameters: RedactParameters;
+  onParameterChange: <K extends keyof RedactParameters>(key: K, value: RedactParameters[K]) => void;
+  disabled?: boolean;
+}
+
+const RedactAdvancedSettings = ({ parameters, onParameterChange, disabled = false }: RedactAdvancedSettingsProps) => {
+  const { t } = useTranslation();
+
+  return (
+    <Stack gap="md">
+      {/* Box Color */}
+      <ColorInput
+        label={t('redact.auto.colorLabel', 'Box Colour')}
+        value={parameters.redactColor}
+        onChange={(value) => onParameterChange('redactColor', value)}
+        disabled={disabled}
+        size="sm"
+        format="hex"
+      />
+
+      {/* Box Padding */}
+      <NumberInput
+        label={t('redact.auto.customPaddingLabel', 'Custom Extra Padding')}
+        value={parameters.customPadding}
+        onChange={(value) => onParameterChange('customPadding', typeof value === 'number' ? value : 0.1)}
+        min={0}
+        max={10}
+        step={0.1}
+        disabled={disabled}
+        size="sm"
+        placeholder="0.1"
+      />
+
+      {/* Use Regex */}
+      <Checkbox
+        label={t('redact.auto.useRegexLabel', 'Use Regex')}
+        checked={parameters.useRegex}
+        onChange={(e) => onParameterChange('useRegex', e.currentTarget.checked)}
+        disabled={disabled}
+        size="sm"
+      />
+
+      {/* Whole Word Search */}
+      <Checkbox
+        label={t('redact.auto.wholeWordSearchLabel', 'Whole Word Search')}
+        checked={parameters.wholeWordSearch}
+        onChange={(e) => onParameterChange('wholeWordSearch', e.currentTarget.checked)}
+        disabled={disabled}
+        size="sm"
+      />
+
+      {/* Convert PDF to PDF-Image */}
+      <Checkbox
+        label={t('redact.auto.convertPDFToImageLabel', 'Convert PDF to PDF-Image (Used to remove text behind the box)')}
+        checked={parameters.convertPDFToImage}
+        onChange={(e) => onParameterChange('convertPDFToImage', e.currentTarget.checked)}
+        disabled={disabled}
+        size="sm"
+      />
+    </Stack>
+  );
+};
+
+export default RedactAdvancedSettings;

frontend/src/components/tools/redact/RedactModeSelector.tsx

@@ -0,0 +1,33 @@
+import { useTranslation } from 'react-i18next';
+import { RedactMode } from '../../../hooks/tools/redact/useRedactParameters';
+import ButtonSelector from '../../shared/ButtonSelector';
+
+interface RedactModeSelectorProps {
+  mode: RedactMode;
+  onModeChange: (mode: RedactMode) => void;
+  disabled?: boolean;
+}
+
+export default function RedactModeSelector({ mode, onModeChange, disabled }: RedactModeSelectorProps) {
+  const { t } = useTranslation();
+
+  return (
+    <ButtonSelector
+      label={t('redact.modeSelector.mode', 'Mode')}
+      value={mode}
+      onChange={onModeChange}
+      options={[
+        {
+          value: 'automatic' as const,
+          label: t('redact.modeSelector.automatic', 'Automatic'),
+        },
+        {
+          value: 'manual' as const,
+          label: t('redact.modeSelector.manual', 'Manual'),
+          disabled: true, // Keep manual mode disabled until implemented
+        },
+      ]}
+      disabled={disabled}
+    />
+  );
+}

frontend/src/components/tools/redact/RedactSingleStepSettings.test.tsx

@@ -0,0 +1,183 @@
+import { describe, expect, test, vi, beforeEach } from 'vitest';
+import { render, screen, fireEvent } from '@testing-library/react';
+import { MantineProvider } from '@mantine/core';
+import RedactSingleStepSettings from './RedactSingleStepSettings';
+import { defaultParameters } from '../../../hooks/tools/redact/useRedactParameters';
+
+// Mock useTranslation
+vi.mock('react-i18next', () => ({
+  useTranslation: () => ({ t: vi.fn((_key: string, fallback: string) => fallback) })
+}));
+
+// Wrapper component to provide Mantine context
+const TestWrapper = ({ children }: { children: React.ReactNode }) => (
+  <MantineProvider>{children}</MantineProvider>
+);
+
+describe('RedactSingleStepSettings', () => {
+  const mockOnParameterChange = vi.fn();
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  test('should render mode selector', () => {
+    render(
+      <TestWrapper>
+        <RedactSingleStepSettings
+          parameters={defaultParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    expect(screen.getByText('Mode')).toBeInTheDocument();
+    expect(screen.getByRole('button', { name: 'Automatic' })).toBeInTheDocument();
+    expect(screen.getByRole('button', { name: 'Manual' })).toBeInTheDocument();
+  });
+
+  test('should render automatic mode settings when mode is automatic', () => {
+    render(
+      <TestWrapper>
+        <RedactSingleStepSettings
+          parameters={defaultParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    // Default mode is automatic, so these should be visible
+    expect(screen.getByText('Words to Redact')).toBeInTheDocument();
+    expect(screen.getByPlaceholderText('Enter a word')).toBeInTheDocument();
+    expect(screen.getByText('Box Colour')).toBeInTheDocument();
+    expect(screen.getByText('Use Regex')).toBeInTheDocument();
+  });
+
+  test('should render manual mode settings when mode is manual', () => {
+    const manualParameters = {
+      ...defaultParameters,
+      mode: 'manual' as const,
+    };
+
+    render(
+      <TestWrapper>
+        <RedactSingleStepSettings
+          parameters={manualParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    // Manual mode should show placeholder text
+    expect(screen.getByText('Manual redaction interface will be available here when implemented.')).toBeInTheDocument();
+
+    // Automatic mode settings should not be visible
+    expect(screen.queryByText('Words to Redact')).not.toBeInTheDocument();
+  });
+
+  test('should pass through parameter changes from automatic settings', () => {
+    render(
+      <TestWrapper>
+        <RedactSingleStepSettings
+          parameters={defaultParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    // Test adding a word
+    const input = screen.getByPlaceholderText('Enter a word');
+    const addButton = screen.getByRole('button', { name: '+ Add' });
+
+    fireEvent.change(input, { target: { value: 'TestWord' } });
+    fireEvent.click(addButton);
+
+    expect(mockOnParameterChange).toHaveBeenCalledWith('wordsToRedact', ['TestWord']);
+  });
+
+  test('should pass through parameter changes from advanced settings', () => {
+    render(
+      <TestWrapper>
+        <RedactSingleStepSettings
+          parameters={defaultParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    // Test changing color
+    const colorInput = screen.getByDisplayValue('#000000');
+    fireEvent.change(colorInput, { target: { value: '#FF0000' } });
+
+    expect(mockOnParameterChange).toHaveBeenCalledWith('redactColor', '#FF0000');
+  });
+
+  test('should disable all controls when disabled prop is true', () => {
+    render(
+      <TestWrapper>
+        <RedactSingleStepSettings
+          parameters={defaultParameters}
+          onParameterChange={mockOnParameterChange}
+          disabled={true}
+        />
+      </TestWrapper>
+    );
+
+    // Mode selector buttons should be disabled
+    expect(screen.getByRole('button', { name: 'Automatic' })).toBeDisabled();
+    expect(screen.getByRole('button', { name: 'Manual' })).toBeDisabled();
+
+    // Automatic settings controls should be disabled
+    expect(screen.getByPlaceholderText('Enter a word')).toBeDisabled();
+    expect(screen.getByRole('button', { name: '+ Add' })).toBeDisabled();
+    expect(screen.getByDisplayValue('#000000')).toBeDisabled();
+  });
+
+  test('should show current parameter values in automatic mode', () => {
+    const customParameters = {
+      ...defaultParameters,
+      wordsToRedact: ['Word1', 'Word2'],
+      redactColor: '#FF0000',
+      useRegex: true,
+      customPadding: 0.5,
+    };
+
+    render(
+      <TestWrapper>
+        <RedactSingleStepSettings
+          parameters={customParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    // Check that word tags are displayed
+    expect(screen.getByText('Word1')).toBeInTheDocument();
+    expect(screen.getByText('Word2')).toBeInTheDocument();
+
+    // Check that color is displayed
+    expect(screen.getByDisplayValue('#FF0000')).toBeInTheDocument();
+
+    // Check that regex checkbox is checked
+    const useRegexCheckbox = screen.getByLabelText('Use Regex');
+    expect(useRegexCheckbox).toBeChecked();
+
+    // Check that padding value is displayed
+    expect(screen.getByDisplayValue('0.5')).toBeInTheDocument();
+  });
+
+  test('should maintain consistent spacing and layout', () => {
+    render(
+      <TestWrapper>
+        <RedactSingleStepSettings
+          parameters={defaultParameters}
+          onParameterChange={mockOnParameterChange}
+        />
+      </TestWrapper>
+    );
+
+    // Check that the Stack container exists
+    const container = screen.getByText('Mode').closest('.mantine-Stack-root');
+    expect(container).toBeInTheDocument();
+  });
+});

frontend/src/components/tools/redact/RedactSingleStepSettings.tsx

@@ -0,0 +1,61 @@
+import { Stack, Divider } from "@mantine/core";
+import { RedactParameters } from "../../../hooks/tools/redact/useRedactParameters";
+import RedactModeSelector from "./RedactModeSelector";
+import WordsToRedactInput from "./WordsToRedactInput";
+import RedactAdvancedSettings from "./RedactAdvancedSettings";
+
+interface RedactSingleStepSettingsProps {
+  parameters: RedactParameters;
+  onParameterChange: <K extends keyof RedactParameters>(key: K, value: RedactParameters[K]) => void;
+  disabled?: boolean;
+}
+
+const RedactSingleStepSettings = ({ parameters, onParameterChange, disabled = false }: RedactSingleStepSettingsProps) => {
+  return (
+    <Stack gap="md">
+      {/* Mode Selection */}
+      <RedactModeSelector
+        mode={parameters.mode}
+        onModeChange={(mode) => onParameterChange('mode', mode)}
+        disabled={disabled}
+      />
+
+      {/* Automatic Mode Settings */}
+      {parameters.mode === 'automatic' && (
+        <>
+          <Divider />
+
+          {/* Words to Redact */}
+          <WordsToRedactInput
+            wordsToRedact={parameters.wordsToRedact}
+            onWordsChange={(words) => onParameterChange('wordsToRedact', words)}
+            disabled={disabled}
+          />
+
+          <Divider />
+
+          {/* Advanced Settings */}
+          <RedactAdvancedSettings
+            parameters={parameters}
+            onParameterChange={onParameterChange}
+            disabled={disabled}
+          />
+        </>
+      )}
+
+      {/* Manual Mode Placeholder */}
+      {parameters.mode === 'manual' && (
+        <>
+          <Divider />
+          <Stack gap="md">
+            <div style={{ padding: '20px', textAlign: 'center', color: '#666' }}>
+              Manual redaction interface will be available here when implemented.
+            </div>
+          </Stack>
+        </>
+      )}
+    </Stack>
+  );
+};
+
+export default RedactSingleStepSettings;

frontend/src/components/tools/redact/WordsToRedactInput.test.tsx

@@ -0,0 +1,191 @@
+import { describe, expect, test, vi, beforeEach } from 'vitest';
+import { render, screen, fireEvent } from '@testing-library/react';
+import { MantineProvider } from '@mantine/core';
+import WordsToRedactInput from './WordsToRedactInput';
+
+// Mock useTranslation
+const mockT = vi.fn((_key: string, fallback: string) => fallback);
+vi.mock('react-i18next', () => ({
+  useTranslation: () => ({ t: mockT })
+}));
+
+// Wrapper component to provide Mantine context
+const TestWrapper = ({ children }: { children: React.ReactNode }) => (
+  <MantineProvider>{children}</MantineProvider>
+);
+
+describe('WordsToRedactInput', () => {
+  const mockOnWordsChange = vi.fn();
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  test('should render with title and input field', () => {
+    render(
+      <TestWrapper>
+        <WordsToRedactInput
+          wordsToRedact={[]}
+          onWordsChange={mockOnWordsChange}
+        />
+      </TestWrapper>
+    );
+
+    expect(screen.getByText('Words to Redact')).toBeInTheDocument();
+    expect(screen.getByPlaceholderText('Enter a word')).toBeInTheDocument();
+    expect(screen.getByRole('button', { name: '+ Add' })).toBeInTheDocument();
+  });
+
+  test.each([
+    { trigger: 'Add button click', action: (_input: HTMLElement, addButton: HTMLElement) => fireEvent.click(addButton) },
+    { trigger: 'Enter key press', action: (input: HTMLElement) => fireEvent.keyDown(input, { key: 'Enter', code: 'Enter' }) },
+  ])('should add word when $trigger', ({ action }) => {
+    render(
+      <TestWrapper>
+        <WordsToRedactInput
+          wordsToRedact={[]}
+          onWordsChange={mockOnWordsChange}
+        />
+      </TestWrapper>
+    );
+
+    const input = screen.getByPlaceholderText('Enter a word');
+    const addButton = screen.getByRole('button', { name: '+ Add' });
+
+    fireEvent.change(input, { target: { value: 'TestWord' } });
+    action(input, addButton);
+
+    expect(mockOnWordsChange).toHaveBeenCalledWith(['TestWord']);
+  });
+
+  test('should not add empty word', () => {
+    render(
+      <TestWrapper>
+        <WordsToRedactInput
+          wordsToRedact={[]}
+          onWordsChange={mockOnWordsChange}
+        />
+      </TestWrapper>
+    );
+
+    const addButton = screen.getByRole('button', { name: '+ Add' });
+
+    fireEvent.click(addButton);
+
+    expect(mockOnWordsChange).not.toHaveBeenCalled();
+  });
+
+  test('should not add duplicate word', () => {
+    render(
+      <TestWrapper>
+        <WordsToRedactInput
+          wordsToRedact={['Existing']}
+          onWordsChange={mockOnWordsChange}
+        />
+      </TestWrapper>
+    );
+
+    const input = screen.getByPlaceholderText('Enter a word');
+    const addButton = screen.getByRole('button', { name: '+ Add' });
+
+    fireEvent.change(input, { target: { value: 'Existing' } });
+    fireEvent.click(addButton);
+
+    expect(mockOnWordsChange).not.toHaveBeenCalled();
+  });
+
+  test('should trim whitespace when adding word', () => {
+    render(
+      <TestWrapper>
+        <WordsToRedactInput
+          wordsToRedact={[]}
+          onWordsChange={mockOnWordsChange}
+        />
+      </TestWrapper>
+    );
+
+    const input = screen.getByPlaceholderText('Enter a word');
+    const addButton = screen.getByRole('button', { name: '+ Add' });
+
+    fireEvent.change(input, { target: { value: '  TestWord  ' } });
+    fireEvent.click(addButton);
+
+    expect(mockOnWordsChange).toHaveBeenCalledWith(['TestWord']);
+  });
+
+  test('should remove word when x button is clicked', () => {
+    render(
+      <TestWrapper>
+        <WordsToRedactInput
+          wordsToRedact={['Word1', 'Word2']}
+          onWordsChange={mockOnWordsChange}
+        />
+      </TestWrapper>
+    );
+
+    const removeButtons = screen.getAllByText('×');
+    fireEvent.click(removeButtons[0]);
+
+    expect(mockOnWordsChange).toHaveBeenCalledWith(['Word2']);
+  });
+
+  test('should clear input after adding word', () => {
+    render(
+      <TestWrapper>
+        <WordsToRedactInput
+          wordsToRedact={[]}
+          onWordsChange={mockOnWordsChange}
+        />
+      </TestWrapper>
+    );
+
+    const input = screen.getByPlaceholderText('Enter a word') as HTMLInputElement;
+    const addButton = screen.getByRole('button', { name: '+ Add' });
+
+    fireEvent.change(input, { target: { value: 'TestWord' } });
+    fireEvent.click(addButton);
+
+    expect(input.value).toBe('');
+  });
+
+  test.each([
+    { description: 'disable Add button when input is empty', inputValue: '', expectedDisabled: true },
+    { description: 'enable Add button when input has text', inputValue: 'TestWord', expectedDisabled: false },
+  ])('should $description', ({ inputValue, expectedDisabled }) => {
+    render(
+      <TestWrapper>
+        <WordsToRedactInput
+          wordsToRedact={[]}
+          onWordsChange={mockOnWordsChange}
+        />
+      </TestWrapper>
+    );
+
+    const input = screen.getByPlaceholderText('Enter a word');
+    const addButton = screen.getByRole('button', { name: '+ Add' });
+
+    fireEvent.change(input, { target: { value: inputValue } });
+
+    expect(addButton).toHaveProperty('disabled', expectedDisabled);
+  });
+
+  test('should disable all controls when disabled prop is true', () => {
+    render(
+      <TestWrapper>
+        <WordsToRedactInput
+          wordsToRedact={['Word1']}
+          onWordsChange={mockOnWordsChange}
+          disabled={true}
+        />
+      </TestWrapper>
+    );
+
+    const input = screen.getByPlaceholderText('Enter a word');
+    const addButton = screen.getByRole('button', { name: '+ Add' });
+    const removeButton = screen.getByText('×');
+
+    expect(input).toBeDisabled();
+    expect(addButton).toBeDisabled();
+    expect(removeButton.closest('button')).toBeDisabled();
+  });
+});

frontend/src/components/tools/redact/WordsToRedactInput.tsx

@@ -0,0 +1,99 @@
+import React, { useState } from 'react';
+import { useTranslation } from 'react-i18next';
+import { Stack, Text, TextInput, Button, Group, ActionIcon } from '@mantine/core';
+
+interface WordsToRedactInputProps {
+  wordsToRedact: string[];
+  onWordsChange: (words: string[]) => void;
+  disabled?: boolean;
+}
+
+export default function WordsToRedactInput({ wordsToRedact, onWordsChange, disabled }: WordsToRedactInputProps) {
+  const { t } = useTranslation();
+  const [currentWord, setCurrentWord] = useState('');
+
+  const addWord = () => {
+    if (currentWord.trim() && !wordsToRedact.includes(currentWord.trim())) {
+      onWordsChange([...wordsToRedact, currentWord.trim()]);
+      setCurrentWord('');
+    }
+  };
+
+  const removeWord = (index: number) => {
+    onWordsChange(wordsToRedact.filter((_, i) => i !== index));
+  };
+
+  const handleKeyPress = (e: React.KeyboardEvent) => {
+    if (e.key === 'Enter') {
+      e.preventDefault();
+      addWord();
+    }
+  };
+
+  return (
+    <Stack gap="sm">
+      <Text size="sm" fw={500}>
+        {t('redact.auto.wordsToRedact.title', 'Words to Redact')}
+      </Text>
+
+      {/* Current words */}
+      {wordsToRedact.map((word, index) => (
+        <Group key={index} justify="space-between" p="sm" style={{
+          borderRadius: 'var(--mantine-radius-sm)',
+          border: `1px solid var(--mantine-color-gray-3)`,
+          backgroundColor: 'var(--mantine-color-gray-0)'
+        }}>
+          <Text
+            size="sm"
+            style={{
+              maxWidth: '80%',
+              overflow: 'hidden',
+              textOverflow: 'ellipsis',
+              whiteSpace: 'nowrap'
+            }}
+            title={word}
+          >
+            {word}
+          </Text>
+          <ActionIcon
+            size="sm"
+            variant="subtle"
+            color="red"
+            onClick={() => removeWord(index)}
+            disabled={disabled}
+          >
+            ×
+          </ActionIcon>
+        </Group>
+      ))}
+
+      {/* Add new word input */}
+      <Group gap="sm" align="end">
+        <TextInput
+          placeholder={t('redact.auto.wordsToRedact.placeholder', 'Enter a word')}
+          value={currentWord}
+          onChange={(e) => setCurrentWord(e.target.value)}
+          onKeyDown={handleKeyPress}
+          disabled={disabled}
+          size="sm"
+          style={{ flex: 1 }}
+        />
+        <Button
+          size="sm"
+          variant="light"
+          onClick={addWord}
+          disabled={disabled || !currentWord.trim()}
+        >
+          + {t('redact.auto.wordsToRedact.add', 'Add')}
+        </Button>
+      </Group>
+
+      {/* Examples */}
+      {wordsToRedact.length === 0 && (
+        <Text size="xs" c="dimmed">
+          {t('redact.auto.wordsToRedact.examples', 'Examples: Confidential, Top-Secret')}
+        </Text>
+      )}
+    </Stack>
+  );
+}

frontend/src/components/tools/removePassword/RemovePasswordSettings.tsx

@@ -4,7 +4,7 @@ import { RemovePasswordParameters } from "../../../hooks/tools/removePassword/us
 
 interface RemovePasswordSettingsProps {
   parameters: RemovePasswordParameters;
-  onParameterChange: (key: keyof RemovePasswordParameters, value: string) => void;
+  onParameterChange: <K extends keyof RemovePasswordParameters>(key: K, value: RemovePasswordParameters[K]) => void;
   disabled?: boolean;
 }
 

frontend/src/components/tools/sanitize/SanitizeSettings.tsx

@@ -4,7 +4,7 @@ import { SanitizeParameters, defaultParameters } from "../../../hooks/tools/sani
 
 interface SanitizeSettingsProps {
   parameters: SanitizeParameters;
-  onParameterChange: (key: keyof SanitizeParameters, value: boolean) => void;
+  onParameterChange: <K extends keyof SanitizeParameters>(key: K, value: SanitizeParameters[K]) => void;
   disabled?: boolean;
 }
 

frontend/src/components/tools/shared/FileStatusIndicator.tsx

@@ -10,11 +10,12 @@ import { StirlingFile } from "../../../types/fileContext";
 
 export interface FileStatusIndicatorProps {
   selectedFiles?: StirlingFile[];
-  placeholder?: string;
+  minFiles?: number;
 }
 
 const FileStatusIndicator = ({
   selectedFiles = [],
+  minFiles = 1,
 }: FileStatusIndicatorProps) => {
   const { t } = useTranslation();
   const { openFilesModal, onFileUpload } = useFilesModalContext();
@@ -55,6 +56,14 @@ const FileStatusIndicator = ({
     return null;
   }
 
+  const getPlaceholder = () => {
+    if (minFiles === undefined || minFiles === 1) {
+      return t("files.selectFromWorkbench", "Select files from the workbench or ");
+    } else {
+      return t("files.selectMultipleFromWorkbench", "Select at least {{count}} files from the workbench or ", { count: minFiles });
+    }
+  };
+
   // Check if there are no files in the workbench
   if (stirlingFileStubs.length === 0) {
     // If no recent files, show upload button
@@ -89,12 +98,12 @@ const FileStatusIndicator = ({
   }
 
   // Show selection status when there are files in workbench
-  if (selectedFiles.length === 0) {
+  if (selectedFiles.length < minFiles) {
     // If no recent files, show upload option
     if (!hasRecentFiles) {
       return (
         <Text size="sm" c="dimmed">
-          {t("files.selectFromWorkbench", "Select files from the workbench or ") + " "}
+          {getPlaceholder() + " "}
           <Anchor
             size="sm"
             onClick={handleNativeUpload}
@@ -109,7 +118,7 @@ const FileStatusIndicator = ({
       // If there are recent files, show add files option
       return (
         <Text size="sm" c="dimmed">
-          {t("files.selectFromWorkbench", "Select files from the workbench or ") + " "}
+          {getPlaceholder() + " "}
           <Anchor
             size="sm"
             onClick={() => openFilesModal()}
@@ -125,7 +134,7 @@ const FileStatusIndicator = ({
 
   return (
    <Text size="sm" c="dimmed" style={{ wordBreak: 'break-word', whiteSpace: 'normal' }}>
-        ✓ {selectedFiles.length === 1 ? t("fileSelected", "Selected: {{filename}}", { filename: selectedFiles[0]?.name }) : t("filesSelected", "{{count}} files selected", { count: selectedFiles.length })}
+      ✓ {selectedFiles.length === 1 ? t("fileSelected", "Selected: {{filename}}", { filename: selectedFiles[0]?.name }) : t("filesSelected", "{{count}} files selected", { count: selectedFiles.length })}
     </Text>
   );
 };

frontend/src/components/tools/shared/FilesToolStep.tsx

@@ -7,7 +7,7 @@ export interface FilesToolStepProps {
   selectedFiles: StirlingFile[];
   isCollapsed?: boolean;
   onCollapsedClick?: () => void;
-  placeholder?: string;
+  minFiles?: number;
 }
 
 export function createFilesToolStep(
@@ -23,7 +23,7 @@ export function createFilesToolStep(
   }, (
     <FileStatusIndicator
       selectedFiles={props.selectedFiles}
-      placeholder={props.placeholder || t("files.placeholder", "Select a PDF file in the main view to get started")}
+      minFiles={props.minFiles}
     />
   ));
 }

frontend/src/components/tools/shared/ToolStep.tsx

@@ -53,7 +53,7 @@ const renderTooltipTitle = (
           <Text fw={400} size="sm">
             {title}
           </Text>
-          <LocalIcon icon="gpp-maybe-outline-rounded" width="1.25rem" height="1.25rem" style={{ color: 'var(--icon-files-color)' }} />
+          <LocalIcon icon="info-outline-rounded" width="1.25rem" height="1.25rem" style={{ color: 'var(--icon-files-color)' }} />
         </Flex>
       </Tooltip>
     );

frontend/src/components/tools/shared/ToolWorkflowTitle.tsx

@@ -5,6 +5,7 @@ import { Tooltip } from '../../shared/Tooltip';
 
 export interface ToolWorkflowTitleProps {
   title: string;
+  description?: string;
   tooltip?: {
     content?: React.ReactNode;
     tips?: any[];
@@ -15,10 +16,19 @@ export interface ToolWorkflowTitleProps {
   };
 }
 
-export function ToolWorkflowTitle({ title, tooltip }: ToolWorkflowTitleProps) {
-  if (tooltip) {
-    return (
-      <>
+export function ToolWorkflowTitle({ title, tooltip, description }: ToolWorkflowTitleProps) {
+  const titleContent = (
+    <Flex align="center" gap="xs" onClick={(e) => e.stopPropagation()}>
+      <Text fw={500} size="lg" p="xs">
+        {title}
+      </Text>
+      {tooltip && <LocalIcon icon="info-outline-rounded" width="1.25rem" height="1.25rem" style={{ color: 'var(--icon-files-color)' }} />}
+    </Flex>
+  );
+
+  return (
+    <>
+      {tooltip ? (
         <Flex justify="center" w="100%">
           <Tooltip
             content={tooltip.content}
@@ -26,27 +36,17 @@ export function ToolWorkflowTitle({ title, tooltip }: ToolWorkflowTitleProps) {
             header={tooltip.header}
             sidebarTooltip={true}
           >
-            <Flex align="center" gap="xs" onClick={(e) => e.stopPropagation()}>
-              <Text fw={500} size="xl" p="md">
-                {title}
-              </Text>
-              <LocalIcon icon="gpp-maybe-outline-rounded" width="1.25rem" height="1.25rem" style={{ color: 'var(--icon-files-color)' }} />
-            </Flex>
+            {titleContent}
           </Tooltip>
         </Flex>
-        <Divider />
-      </>
-    );
-  }
+      ) : (
+        titleContent
+      )}
 
-  return (
-    <>
-      <Flex justify="center" w="100%">
-        <Text fw={500} size="xl" p="md">
-          {title}
-        </Text>
-      </Flex>
-      <Divider />
+      <Text size="sm" mb="md" p="sm" style={{borderRadius:'var(--mantine-radius-md)', background: 'var(--color-gray-200)', color: 'var(--mantine-color-text)' }}>
+        {description}
+      </Text>
+      <Divider mb="sm" />
     </>
   );
 }

frontend/src/components/tools/shared/createToolFlow.tsx

@@ -9,7 +9,7 @@ import { StirlingFile } from '../../../types/fileContext';
 export interface FilesStepConfig {
   selectedFiles: StirlingFile[];
   isCollapsed?: boolean;
-  placeholder?: string;
+  minFiles?: number;
   onCollapsedClick?: () => void;
   isVisible?: boolean;
 }
@@ -76,7 +76,7 @@ export function createToolFlow(config: ToolFlowConfig) {
         {config.files.isVisible !== false && steps.createFilesStep({
           selectedFiles: config.files.selectedFiles,
           isCollapsed: config.files.isCollapsed,
-          placeholder: config.files.placeholder,
+          minFiles: config.files.minFiles,
           onCollapsedClick: config.files.onCollapsedClick
         })}
 

frontend/src/components/tools/shared/renderToolButtons.tsx

@@ -12,7 +12,8 @@ export const renderToolButtons = (
   subcategory: SubcategoryGroup,
   selectedToolKey: string | null,
   onSelect: (id: string) => void,
-  showSubcategoryHeader: boolean = true
+  showSubcategoryHeader: boolean = true,
+  disableNavigation: boolean = false
 ) => (
   <Box key={subcategory.subcategoryId} w="100%">
     {showSubcategoryHeader && (
@@ -26,6 +27,7 @@ export const renderToolButtons = (
           tool={tool}
           isSelected={selectedToolKey === id}
           onSelect={onSelect}
+          disableNavigation={disableNavigation}
         />
       ))}
     </div>

frontend/src/components/tools/split/SplitSettings.tsx

@@ -1,11 +1,11 @@
 import { Stack, TextInput, Select, Checkbox } from '@mantine/core';
 import { useTranslation } from 'react-i18next';
-import { isSplitMode, SPLIT_MODES, SPLIT_TYPES } from '../../../constants/splitConstants';
+import { isSplitMode, isSplitType, SPLIT_MODES, SPLIT_TYPES } from '../../../constants/splitConstants';
 import { SplitParameters } from '../../../hooks/tools/split/useSplitParameters';
 
 export interface SplitSettingsProps {
   parameters: SplitParameters;
-  onParameterChange: (parameter: keyof SplitParameters, value: string | boolean) => void;
+  onParameterChange: <K extends keyof SplitParameters>(key: K, value: SplitParameters[K]) => void;
   disabled?: boolean;
 }
 
@@ -62,7 +62,7 @@ const SplitSettings = ({
       <Select
         label={t("split-by-size-or-count.type.label", "Split Type")}
         value={parameters.splitType}
-        onChange={(v) => v && onParameterChange('splitType', v)}
+        onChange={(v) => isSplitType(v) && onParameterChange('splitType', v)}
         disabled={disabled}
         data={[
           { value: SPLIT_TYPES.SIZE, label: t("split-by-size-or-count.type.size", "By Size") },

frontend/src/components/tools/toolPicker/ToolButton.tsx

@@ -12,9 +12,10 @@ interface ToolButtonProps {
   isSelected: boolean;
   onSelect: (id: string) => void;
   rounded?: boolean;
+  disableNavigation?: boolean;
 }
 
-const ToolButton: React.FC<ToolButtonProps> = ({ id, tool, isSelected, onSelect }) => {
+const ToolButton: React.FC<ToolButtonProps> = ({ id, tool, isSelected, onSelect, disableNavigation = false }) => {
   const isUnavailable = !tool.component && !tool.link;
   const { getToolNavigation } = useToolNavigation();
 
@@ -29,8 +30,8 @@ const ToolButton: React.FC<ToolButtonProps> = ({ id, tool, isSelected, onSelect
     onSelect(id);
   };
 
-  // Get navigation props for URL support
-  const navProps = !isUnavailable && !tool.link ? getToolNavigation(id, tool) : null;
+  // Get navigation props for URL support (only if navigation is not disabled)
+  const navProps = !isUnavailable && !tool.link && !disableNavigation ? getToolNavigation(id, tool) : null;
 
   const tooltipContent = isUnavailable
     ? (<span><strong>Coming soon:</strong> {tool.description}</span>)

frontend/src/components/tooltips/useAutoRenameTips.ts

@@ -0,0 +1,22 @@
+import { useTranslation } from 'react-i18next';
+import { TooltipContent } from '../../types/tips';
+
+export const useAutoRenameTips = (): TooltipContent => {
+  const { t } = useTranslation();
+
+  return {
+    header: {
+      title: t("auto-rename.tooltip.header.title", "How Auto-Rename Works")
+    },
+    tips: [
+      {
+        title: t("auto-rename.tooltip.howItWorks.title", "Smart Renaming"),
+        bullets: [
+          t("auto-rename.tooltip.howItWorks.bullet1", "Looks for text that appears to be a title or heading"),
+          t("auto-rename.tooltip.howItWorks.bullet2", "Creates a clean, valid filename from the detected title"),
+          t("auto-rename.tooltip.howItWorks.bullet3", "Keeps the original name if no suitable title is found")
+        ]
+      }
+    ]
+  };
+};

frontend/src/components/tooltips/useMergeTips.tsx

@@ -0,0 +1,19 @@
+import { useTranslation } from 'react-i18next';
+import { TooltipContent } from '../../types/tips';
+
+export const useMergeTips = (): TooltipContent => {
+  const { t } = useTranslation();
+
+  return {
+    tips: [
+      {
+        title: t('merge.removeDigitalSignature.tooltip.title', 'Remove Digital Signature'),
+        description: t('merge.removeDigitalSignature.tooltip.description', 'Digital signatures will be invalidated when merging files. Check this to remove them from the final merged PDF.')
+      },
+      {
+        title: t('merge.generateTableOfContents.tooltip.title', 'Generate Table of Contents'),
+        description: t('merge.generateTableOfContents.tooltip.description', 'Automatically creates a clickable table of contents in the merged PDF based on the original file names and page numbers.')
+      }
+    ]
+  };
+};

frontend/src/components/tooltips/useRedactTips.ts

@@ -0,0 +1,79 @@
+import { useTranslation } from 'react-i18next';
+import { TooltipContent } from '../../types/tips';
+
+export const useRedactModeTips = (): TooltipContent => {
+  const { t } = useTranslation();
+
+  return {
+    header: {
+      title: t("redact.tooltip.mode.header.title", "Redaction Method")
+    },
+    tips: [
+      {
+        title: t("redact.tooltip.mode.automatic.title", "Automatic Redaction"),
+        description: t("redact.tooltip.mode.automatic.text", "Automatically finds and redacts specified text throughout the document. Perfect for removing consistent sensitive information like names, SSNs, or confidential markers.")
+      },
+      {
+        title: t("redact.tooltip.mode.manual.title", "Manual Redaction"),
+        description: t("redact.tooltip.mode.manual.text", "Click and drag to manually select specific areas to redact. Gives you precise control over what gets redacted. (Coming soon)")
+      }
+    ]
+  };
+};
+
+export const useRedactWordsTips = (): TooltipContent => {
+  const { t } = useTranslation();
+
+  return {
+    header: {
+      title: t("redact.tooltip.words.header.title", "Words to Redact")
+    },
+    tips: [
+      {
+        title: t("redact.tooltip.words.description.title", "Text Matching"),
+        description: t("redact.tooltip.words.description.text", "Enter words or phrases to find and redact in your document. Each word will be searched for separately."),
+        bullets: [
+          t("redact.tooltip.words.bullet1", "Add one word at a time"),
+          t("redact.tooltip.words.bullet2", "Press Enter or click 'Add Another' to add"),
+          t("redact.tooltip.words.bullet3", "Click × to remove words")
+        ]
+      },
+      {
+        title: t("redact.tooltip.words.examples.title", "Common Examples"),
+        description: t("redact.tooltip.words.examples.text", "Typical words to redact include: bank details, email addresses, or specific names.")
+      }
+    ]
+  };
+};
+
+export const useRedactAdvancedTips = (): TooltipContent => {
+  const { t } = useTranslation();
+
+  return {
+    header: {
+      title: t("redact.tooltip.advanced.header.title", "Advanced Redaction Settings")
+    },
+    tips: [
+      {
+        title: t("redact.tooltip.advanced.color.title", "Box Colour & Padding"),
+        description: t("redact.tooltip.advanced.color.text", "Customise the appearance of redaction boxes. Black is standard, but you can choose any colour. Padding adds extra space around the found text."),
+      },
+      {
+        title: t("redact.tooltip.advanced.regex.title", "Use Regex"),
+        description: t("redact.tooltip.advanced.regex.text", "Enable regular expressions for advanced pattern matching. Useful for finding phone numbers, emails, or complex patterns."),
+        bullets: [
+          t("redact.tooltip.advanced.regex.bullet1", "Example: \\d{4}-\\d{2}-\\d{2} to match any dates in YYYY-MM-DD format"),
+          t("redact.tooltip.advanced.regex.bullet2", "Use with caution - test thoroughly")
+        ]
+      },
+      {
+        title: t("redact.tooltip.advanced.wholeWord.title", "Whole Word Search"),
+        description: t("redact.tooltip.advanced.wholeWord.text", "Only match complete words, not partial matches. 'John' won't match 'Johnson' when enabled.")
+      },
+      {
+        title: t("redact.tooltip.advanced.convert.title", "Convert to PDF-Image"),
+        description: t("redact.tooltip.advanced.convert.text", "Converts the PDF to an image-based PDF after redaction. This ensures text behind redaction boxes is completely removed and unrecoverable.")
+      }
+    ]
+  };
+};

frontend/src/contexts/file/FileReducer.ts

@@ -147,12 +147,17 @@ export function fileContextReducer(state: FileContextState, action: FileContextA
 
       // Validate that all IDs exist in current state
       const validIds = orderedFileIds.filter(id => state.files.byId[id]);
-
+      // Reorder selected files by passed order
+      const selectedFileIds = orderedFileIds.filter(id => state.ui.selectedFileIds.includes(id));
       return {
         ...state,
         files: {
           ...state.files,
           ids: validIds
+        },
+        ui: {
+          ...state.ui,
+          selectedFileIds,
         }
       };
     }
@@ -236,11 +241,14 @@ export function fileContextReducer(state: FileContextState, action: FileContextA
 
     case 'CONSUME_FILES': {
       const { inputFileIds, outputStirlingFileStubs } = action.payload;
+
       return processFileSwap(state, inputFileIds, outputStirlingFileStubs);
     }
 
+
     case 'UNDO_CONSUME_FILES': {
       const { inputStirlingFileStubs, outputFileIds } = action.payload;
+
       return processFileSwap(state, outputFileIds, inputStirlingFileStubs);
     }
 

frontend/src/contexts/file/fileActions.ts

@@ -6,10 +6,11 @@ import {
   StirlingFileStub,
   FileContextAction,
   FileContextState,
-  toStirlingFileStub,
+  createNewStirlingFileStub,
   createFileId,
   createQuickKey,
   createStirlingFile,
+  ProcessedFileMetadata,
 } from '../../types/fileContext';
 import { FileId } from '../../types/file';
 import { generateThumbnailWithMetadata } from '../../utils/thumbnailUtils';
@@ -70,19 +71,43 @@ export function createProcessedFile(pageCount: number, thumbnail?: string) {
   };
 }
 
+/**
+ * Generate fresh ProcessedFileMetadata for a file
+ * Used when tools process files to ensure metadata matches actual file content
+ */
+export async function generateProcessedFileMetadata(file: File): Promise<ProcessedFileMetadata | undefined> {
+  // Only generate metadata for PDF files
+  if (!file.type.startsWith('application/pdf')) {
+    return undefined;
+  }
+
+  try {
+    const result = await generateThumbnailWithMetadata(file);
+      return createProcessedFile(result.pageCount, result.thumbnail);
+  } catch (error) {
+    if (DEBUG) console.warn(`📄 Failed to generate processedFileMetadata for ${file.name}:`, error);
+  }
+
+  return undefined;
+}
+
 /**
  * Create a child StirlingFileStub from a parent stub with proper history management.
  * Used when a tool processes an existing file to create a new version with incremented history.
  *
  * @param parentStub - The parent StirlingFileStub to create a child from
  * @param operation - Tool operation information (toolName, timestamp)
+ * @param resultingFile - The processed File object
+ * @param thumbnail - Optional thumbnail for the child
+ * @param processedFileMetadata - Optional fresh metadata for the processed file
  * @returns New child StirlingFileStub with proper version history
  */
 export function createChildStub(
   parentStub: StirlingFileStub,
   operation: { toolName: string; timestamp: number },
   resultingFile: File,
-  thumbnail?: string
+  thumbnail?: string,
+  processedFileMetadata?: ProcessedFileMetadata
 ): StirlingFileStub {
   const newFileId = createFileId();
 
@@ -96,10 +121,12 @@ export function createChildStub(
   // Determine original file ID (root of the version chain)
   const originalFileId = parentStub.originalFileId || parentStub.id;
 
-// Update the child stub's name to match the processed file
+  // Copy parent metadata but exclude processedFile to prevent stale data
+  const { processedFile: _processedFile, ...parentMetadata } = parentStub;
+
   return {
-    // Copy all parent metadata
-    ...parentStub,
+    // Copy parent metadata (excluding processedFile)
+    ...parentMetadata,
 
     // Update identity and version info
     id: newFileId,
@@ -113,10 +140,10 @@ export function createChildStub(
     size: resultingFile.size,
     type: resultingFile.type,
     lastModified: resultingFile.lastModified,
-    thumbnailUrl: thumbnail
+    thumbnailUrl: thumbnail,
 
-    // Preserve thumbnails and processing metadata from parent
-    // These will be updated if the child has new thumbnails, but fallback to parent
+    // Set fresh processedFile metadata (no inheritance from parent)
+    processedFile: processedFileMetadata
   };
 }
 
@@ -170,36 +197,29 @@ export async function addFiles(
     const fileId = createFileId();
     filesRef.current.set(fileId, file);
 
-    // Generate thumbnail and page count immediately
-    let thumbnail: string | undefined;
-    let pageCount: number = 1;
+    // Generate processedFile metadata using centralized function
+    const processedFileMetadata = await generateProcessedFileMetadata(file);
 
-    // Route based on file type - PDFs through full metadata pipeline, non-PDFs through simple path
-    if (file.type.startsWith('application/pdf')) {
-      try {
-        if (DEBUG) console.log(`📄 Generating PDF metadata for ${file.name}`);
-        const result = await generateThumbnailWithMetadata(file);
-        thumbnail = result.thumbnail;
-        pageCount = result.pageCount;
-        if (DEBUG) console.log(`📄 Generated PDF metadata for ${file.name}: ${pageCount} pages, thumbnail: SUCCESS`);
-      } catch (error) {
-        if (DEBUG) console.warn(`📄 Failed to generate PDF metadata for ${file.name}:`, error);
-      }
-    } else {
-      // Non-PDF files: simple thumbnail generation, no page count
+    // Extract thumbnail for non-PDF files or use from processedFile for PDFs
+    let thumbnail: string | undefined;
+    if (processedFileMetadata) {
+      // PDF file - use thumbnail from processedFile metadata
+      thumbnail = processedFileMetadata.thumbnailUrl;
+      if (DEBUG) console.log(`📄 Generated PDF metadata for ${file.name}: ${processedFileMetadata.totalPages} pages, thumbnail: SUCCESS`);
+    } else if (!file.type.startsWith('application/pdf')) {
+      // Non-PDF files: simple thumbnail generation, no processedFile metadata
       try {
         if (DEBUG) console.log(`📄 Generating simple thumbnail for non-PDF file ${file.name}`);
         const { generateThumbnailForFile } = await import('../../utils/thumbnailUtils');
         thumbnail = await generateThumbnailForFile(file);
-        pageCount = 0; // Non-PDFs have no page count
         if (DEBUG) console.log(`📄 Generated simple thumbnail for ${file.name}: no page count, thumbnail: SUCCESS`);
       } catch (error) {
         if (DEBUG) console.warn(`📄 Failed to generate simple thumbnail for ${file.name}:`, error);
       }
     }
 
-    // Create record with immediate thumbnail and page metadata
-    const record = toStirlingFileStub(file, fileId, thumbnail);
+    // Create new filestub with processedFile metadata
+    const fileStub = createNewStirlingFileStub(file, fileId, thumbnail, processedFileMetadata);
     if (thumbnail) {
       // Track blob URLs for cleanup (images return blob URLs that need revocation)
       if (thumbnail.startsWith('blob:')) {
@@ -209,17 +229,11 @@ export async function addFiles(
 
     // Store insertion position if provided
     if (options.insertAfterPageId !== undefined) {
-      record.insertAfterPageId = options.insertAfterPageId;
-    }
-
-    // Create initial processedFile metadata with page count
-    if (pageCount > 0) {
-      record.processedFile = createProcessedFile(pageCount, thumbnail);
-      if (DEBUG) console.log(`📄 addFiles(raw): Created initial processedFile metadata for ${file.name} with ${pageCount} pages`);
+      fileStub.insertAfterPageId = options.insertAfterPageId;
     }
 
     existingQuickKeys.add(quickKey);
-    stirlingFileStubs.push(record);
+    stirlingFileStubs.push(fileStub);
 
     // Create StirlingFile directly
     const stirlingFile = createStirlingFile(file, fileId);
@@ -289,16 +303,18 @@ export async function consumeFiles(
   }
 
   // Mark input files as processed in storage (no longer leaf nodes)
-  await Promise.all(
-    inputFileIds.map(async (fileId) => {
-      try {
-        await fileStorage.markFileAsProcessed(fileId);
-        if (DEBUG) console.log(`📄 Marked file ${fileId} as processed (no longer leaf)`);
-      } catch (error) {
-        if (DEBUG) console.warn(`📄 Failed to mark file ${fileId} as processed:`, error);
-      }
-    })
-  );
+  if(!outputStirlingFileStubs.reduce((areAllV1, stub) => areAllV1 && (stub.versionNumber == 1), true)) {
+    await Promise.all(
+      inputFileIds.map(async (fileId) => {
+        try {
+          await fileStorage.markFileAsProcessed(fileId);
+          if (DEBUG) console.log(`📄 Marked file ${fileId} as processed (no longer leaf)`);
+        } catch (error) {
+          if (DEBUG) console.warn(`📄 Failed to mark file ${fileId} as processed:`, error);
+        }
+      })
+    );
+  }
 
   // Save output files directly to fileStorage with complete metadata
   for (let i = 0; i < outputStirlingFiles.length; i++) {
@@ -500,15 +516,16 @@ export async function addStirlingFileStubs(
 
         if (needsProcessing) {
           if (DEBUG) console.log(`📄 addStirlingFileStubs: Regenerating processedFile for ${record.name}`);
-          try {
-            // Generate basic processedFile structure with page count
-            const result = await generateThumbnailWithMetadata(stirlingFile);
-            record.processedFile = createProcessedFile(result.pageCount, result.thumbnail);
-            record.thumbnailUrl = result.thumbnail; // Update thumbnail if needed
-            if (DEBUG) console.log(`📄 addStirlingFileStubs: Regenerated processedFile for ${record.name} with ${result.pageCount} pages`);
-          } catch (error) {
-            if (DEBUG) console.warn(`📄 addStirlingFileStubs: Failed to regenerate processedFile for ${record.name}:`, error);
-            // Ensure we have at least basic structure
+
+          // Use centralized metadata generation function
+          const processedFileMetadata = await generateProcessedFileMetadata(stirlingFile);
+          if (processedFileMetadata) {
+            record.processedFile = processedFileMetadata;
+            record.thumbnailUrl = processedFileMetadata.thumbnailUrl; // Update thumbnail if needed
+            if (DEBUG) console.log(`📄 addStirlingFileStubs: Regenerated processedFile for ${record.name} with ${processedFileMetadata.totalPages} pages`);
+          } else {
+            // Fallback for files that couldn't be processed
+            if (DEBUG) console.warn(`📄 addStirlingFileStubs: Failed to regenerate processedFile for ${record.name}`);
             if (!record.processedFile) {
               record.processedFile = createProcessedFile(1); // Fallback to 1 page
             }

frontend/src/contexts/file/fileHooks.ts

@@ -136,13 +136,13 @@ export function useAllFiles(): { files: StirlingFile[]; records: StirlingFileStu
 /**
  * Hook for selected files (optimized for selection-based UI)
  */
-export function useSelectedFiles(): { files: StirlingFile[]; records: StirlingFileStub[]; fileIds: FileId[] } {
+export function useSelectedFiles(): { selectedFiles: StirlingFile[]; selectedRecords: StirlingFileStub[]; selectedFileIds: FileId[] } {
   const { state, selectors } = useFileState();
 
   return useMemo(() => ({
-    files: selectors.getSelectedFiles(),
-    records: selectors.getSelectedStirlingFileStubs(),
-    fileIds: state.ui.selectedFileIds
+    selectedFiles: selectors.getSelectedFiles(),
+    selectedRecords: selectors.getSelectedStirlingFileStubs(),
+    selectedFileIds: state.ui.selectedFileIds
   }), [state.ui.selectedFileIds, selectors]);
 }
 
@@ -169,7 +169,6 @@ export function useFileContext() {
     recordOperation: (_fileId: FileId, _operation: any) => {}, // Operation tracking not implemented
     markOperationApplied: (_fileId: FileId, _operationId: string) => {}, // Operation tracking not implemented
     markOperationFailed: (_fileId: FileId, _operationId: string, _error: string) => {}, // Operation tracking not implemented
-
     // File ID lookup
     findFileId: (file: File) => {
       return state.files.ids.find(id => {

frontend/src/data/useTranslatedToolRegistry.tsx

@@ -11,7 +11,9 @@ import ChangePermissions from "../tools/ChangePermissions";
 import RemovePassword from "../tools/RemovePassword";
 import { SubcategoryId, ToolCategoryId, ToolRegistry } from "./toolsTaxonomy";
 import AddWatermark from "../tools/AddWatermark";
+import Merge from '../tools/Merge';
 import Repair from "../tools/Repair";
+import AutoRename from "../tools/AutoRename";
 import SingleLargePage from "../tools/SingleLargePage";
 import UnlockPdfForms from "../tools/UnlockPdfForms";
 import RemoveCertificateSign from "../tools/RemoveCertificateSign";
@@ -29,7 +31,10 @@ import { ocrOperationConfig } from "../hooks/tools/ocr/useOCROperation";
 import { convertOperationConfig } from "../hooks/tools/convert/useConvertOperation";
 import { removeCertificateSignOperationConfig } from "../hooks/tools/removeCertificateSign/useRemoveCertificateSignOperation";
 import { changePermissionsOperationConfig } from "../hooks/tools/changePermissions/useChangePermissionsOperation";
+import { mergeOperationConfig } from '../hooks/tools/merge/useMergeOperation';
+import { autoRenameOperationConfig } from "../hooks/tools/autoRename/useAutoRenameOperation";
 import { flattenOperationConfig } from "../hooks/tools/flatten/useFlattenOperation";
+import { redactOperationConfig } from "../hooks/tools/redact/useRedactOperation";
 import CompressSettings from "../components/tools/compress/CompressSettings";
 import SplitSettings from "../components/tools/split/SplitSettings";
 import AddPasswordSettings from "../components/tools/addPassword/AddPasswordSettings";
@@ -42,7 +47,10 @@ import OCRSettings from "../components/tools/ocr/OCRSettings";
 import ConvertSettings from "../components/tools/convert/ConvertSettings";
 import ChangePermissionsSettings from "../components/tools/changePermissions/ChangePermissionsSettings";
 import FlattenSettings from "../components/tools/flatten/FlattenSettings";
+import RedactSingleStepSettings from "../components/tools/redact/RedactSingleStepSettings";
+import Redact from "../tools/Redact";
 import { ToolId } from "../types/toolId";
+import MergeSettings from '../components/tools/merge/MergeSettings';
 
 const showPlaceholderTools = true; // Show all tools; grey out unavailable ones in UI
 
@@ -472,7 +480,10 @@ export function useFlatToolRegistry(): ToolRegistry {
       "auto-rename-pdf-file": {
         icon: <LocalIcon icon="match-word-rounded" width="1.5rem" height="1.5rem" />,
         name: t("home.auto-rename.title", "Auto Rename PDF File"),
-        component: null,
+        component: AutoRename,
+        maxFiles: -1,
+        endpoints: ["remove-certificate-sign"],
+        operationConfig: autoRenameOperationConfig,
         description: t("home.auto-rename.desc", "Automatically rename PDF files based on their content"),
         categoryId: ToolCategoryId.ADVANCED_TOOLS,
         subcategoryId: SubcategoryId.AUTOMATION,
@@ -664,12 +675,14 @@ export function useFlatToolRegistry(): ToolRegistry {
       mergePdfs: {
         icon: <LocalIcon icon="library-add-rounded" width="1.5rem" height="1.5rem" />,
         name: t("home.merge.title", "Merge"),
-        component: null,
-
+        component: Merge,
         description: t("home.merge.desc", "Merge multiple PDFs into a single document"),
         categoryId: ToolCategoryId.RECOMMENDED_TOOLS,
         subcategoryId: SubcategoryId.GENERAL,
         maxFiles: -1,
+        endpoints: ["merge-pdfs"],
+        operationConfig: mergeOperationConfig,
+        settingsComponent: MergeSettings
       },
       "multi-tool": {
         icon: <LocalIcon icon="dashboard-customize-rounded" width="1.5rem" height="1.5rem" />,
@@ -696,10 +709,14 @@ export function useFlatToolRegistry(): ToolRegistry {
       redact: {
         icon: <LocalIcon icon="visibility-off-rounded" width="1.5rem" height="1.5rem" />,
         name: t("home.redact.title", "Redact"),
-        component: null,
+        component: Redact,
         description: t("home.redact.desc", "Permanently remove sensitive information from PDF documents"),
         categoryId: ToolCategoryId.RECOMMENDED_TOOLS,
         subcategoryId: SubcategoryId.GENERAL,
+        maxFiles: -1,
+        endpoints: ["auto-redact"],
+        operationConfig: redactOperationConfig,
+        settingsComponent: RedactSingleStepSettings,
       },
     };
 

frontend/src/hooks/tools/addPassword/useAddPasswordOperation.test.ts

@@ -119,7 +119,7 @@ describe('useAddPasswordOperation', () => {
   test.each([
     { property: 'toolType' as const, expectedValue: ToolType.singleFile },
     { property: 'endpoint' as const, expectedValue: '/api/v1/security/add-password' },
-    { property: 'filePrefix' as const, expectedValue: 'translated-addPassword.filenamePrefix_' },
+    { property: 'filePrefix' as const, expectedValue: undefined },
     { property: 'operationType' as const, expectedValue: 'addPassword' }
   ])('should configure $property correctly', ({ property, expectedValue }) => {
     renderHook(() => useAddPasswordOperation());

frontend/src/hooks/tools/autoRename/useAutoRenameOperation.ts

@@ -0,0 +1,43 @@
+import { useTranslation } from 'react-i18next';
+import { ToolType, useToolOperation } from '../shared/useToolOperation';
+import { createStandardErrorHandler } from '../../../utils/toolErrorHandler';
+import { AutoRenameParameters, defaultParameters } from './useAutoRenameParameters';
+
+export const getFormData = ((parameters: AutoRenameParameters) =>
+  Object.entries(parameters).map(([key, value]) =>
+    [key, value.toString()]
+  ) as string[][]
+);
+
+// Static function that can be used by both the hook and automation executor
+export const buildAutoRenameFormData = (parameters: AutoRenameParameters, file: File): FormData => {
+  const formData = new FormData();
+  formData.append("fileInput", file);
+
+  // Add all permission parameters
+  getFormData(parameters).forEach(([key, value]) => {
+    formData.append(key, value);
+  });
+
+  return formData;
+};
+
+// Static configuration object
+export const autoRenameOperationConfig = {
+  toolType: ToolType.singleFile,
+  buildFormData: buildAutoRenameFormData,
+  operationType: 'autoRename',
+  endpoint: '/api/v1/misc/auto-rename',
+  filePrefix: 'autoRename_',
+  preserveBackendFilename: true, // Use filename from backend response headers
+  defaultParameters,
+} as const;
+
+export const useAutoRenameOperation = () => {
+  const { t } = useTranslation();
+
+  return useToolOperation({
+    ...autoRenameOperationConfig,
+    getErrorMessage: createStandardErrorHandler(t('auto-rename.error.failed', 'An error occurred while auto-renaming the PDF.'))
+  });
+};

frontend/src/hooks/tools/autoRename/useAutoRenameParameters.ts

@@ -0,0 +1,19 @@
+import { BaseParameters } from '../../../types/parameters';
+import { useBaseParameters, BaseParametersHook } from '../shared/useBaseParameters';
+
+export interface AutoRenameParameters extends BaseParameters {
+  useFirstTextAsFallback: boolean;
+}
+
+export const defaultParameters: AutoRenameParameters = {
+  useFirstTextAsFallback: false,
+};
+
+export type AutoRenameParametersHook = BaseParametersHook<AutoRenameParameters>;
+
+export const useAutoRenameParameters = (): AutoRenameParametersHook => {
+  return useBaseParameters({
+    defaultParameters,
+    endpointName: 'auto-rename',
+  });
+};

frontend/src/hooks/tools/changePermissions/useChangePermissionsOperation.test.ts

@@ -113,7 +113,7 @@ describe('useChangePermissionsOperation', () => {
   test.each([
     { property: 'toolType' as const, expectedValue: ToolType.singleFile },
     { property: 'endpoint' as const, expectedValue: '/api/v1/security/add-password' },
-    { property: 'filePrefix' as const, expectedValue: 'permissions_' },
+    { property: 'filePrefix' as const, expectedValue: undefined },
     { property: 'operationType' as const, expectedValue: 'change-permissions' }
   ])('should configure $property correctly', ({ property, expectedValue }) => {
     renderHook(() => useChangePermissionsOperation());

frontend/src/hooks/tools/merge/useMergeOperation.test.ts

@@ -0,0 +1,138 @@
+import { describe, expect, test, vi, beforeEach } from 'vitest';
+import { renderHook } from '@testing-library/react';
+import { useMergeOperation } from './useMergeOperation';
+import type { MergeParameters } from './useMergeParameters';
+
+// Mock the useToolOperation hook
+vi.mock('../shared/useToolOperation', async () => {
+  const actual = await vi.importActual('../shared/useToolOperation');
+  return {
+    ...actual,
+    useToolOperation: vi.fn()
+  };
+});
+
+// Mock the translation hook
+const mockT = vi.fn((key: string) => `translated-${key}`);
+vi.mock('react-i18next', () => ({
+  useTranslation: () => ({ t: mockT })
+}));
+
+// Mock the error handler
+vi.mock('../../../utils/toolErrorHandler', () => ({
+  createStandardErrorHandler: vi.fn(() => 'error-handler-function')
+}));
+
+// Import the mocked function
+import { MultiFileToolOperationConfig, ToolOperationHook, useToolOperation } from '../shared/useToolOperation';
+
+describe('useMergeOperation', () => {
+  const mockUseToolOperation = vi.mocked(useToolOperation<MergeParameters>);
+
+  const getToolConfig = () => mockUseToolOperation.mock.calls[0][0] as MultiFileToolOperationConfig<MergeParameters>;
+
+  const mockToolOperationReturn: ToolOperationHook<unknown> = {
+    files: [],
+    thumbnails: [],
+    downloadUrl: null,
+    downloadFilename: '',
+    isLoading: false,
+    errorMessage: null,
+    status: '',
+    isGeneratingThumbnails: false,
+    progress: null,
+    executeOperation: vi.fn(),
+    resetResults: vi.fn(),
+    clearError: vi.fn(),
+    cancelOperation: vi.fn(),
+    undoOperation: function (): Promise<void> {
+      throw new Error('Function not implemented.');
+    }
+  };
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+    mockUseToolOperation.mockReturnValue(mockToolOperationReturn);
+  });
+
+  test('should build FormData correctly', () => {
+    renderHook(() => useMergeOperation());
+
+    const config = getToolConfig();
+    const mockFiles = [
+      new File(['content1'], 'file1.pdf', { type: 'application/pdf' }),
+      new File(['content2'], 'file2.pdf', { type: 'application/pdf' })
+    ];
+    const parameters: MergeParameters = {
+      removeDigitalSignature: true,
+      generateTableOfContents: false
+    };
+
+    const formData = config.buildFormData(parameters, mockFiles);
+
+    // Verify files are appended
+    expect(formData.getAll('fileInput')).toHaveLength(2);
+    expect(formData.getAll('fileInput')[0]).toBe(mockFiles[0]);
+    expect(formData.getAll('fileInput')[1]).toBe(mockFiles[1]);
+
+    // Verify parameters are appended correctly
+    expect(formData.get('sortType')).toBe('orderProvided');
+    expect(formData.get('removeCertSign')).toBe('true');
+    expect(formData.get('generateToc')).toBe('false');
+  });
+
+  test('should handle response correctly', () => {
+    renderHook(() => useMergeOperation());
+
+    const config = getToolConfig();
+    const mockBlob = new Blob(['merged content'], { type: 'application/pdf' });
+    const mockFiles = [
+      new File(['content1'], 'file1.pdf', { type: 'application/pdf' }),
+      new File(['content2'], 'file2.pdf', { type: 'application/pdf' })
+    ];
+
+    const result = config.responseHandler!(mockBlob, mockFiles) as File[];
+
+    expect(result).toHaveLength(1);
+    expect(result[0].name).toBe('merged_file1.pdf');
+    expect(result[0].type).toBe('application/pdf');
+    expect(result[0].size).toBe(mockBlob.size);
+  });
+
+  test('should return the hook result from useToolOperation', () => {
+    const { result } = renderHook(() => useMergeOperation());
+
+    expect(result.current).toBe(mockToolOperationReturn);
+  });
+
+  test('should use correct translation keys for error handling', () => {
+    renderHook(() => useMergeOperation());
+
+    expect(mockT).toHaveBeenCalledWith('merge.error.failed', 'An error occurred while merging the PDFs.');
+  });
+
+  test('should build FormData with different parameter combinations', () => {
+    renderHook(() => useMergeOperation());
+
+    const config = getToolConfig();
+    const mockFiles = [new File(['test'], 'test.pdf', { type: 'application/pdf' })];
+
+    // Test case 1: All options disabled
+    const params1: MergeParameters = {
+      removeDigitalSignature: false,
+      generateTableOfContents: false
+    };
+    const formData1 = config.buildFormData(params1, mockFiles);
+    expect(formData1.get('removeCertSign')).toBe('false');
+    expect(formData1.get('generateToc')).toBe('false');
+
+    // Test case 2: All options enabled
+    const params2: MergeParameters = {
+      removeDigitalSignature: true,
+      generateTableOfContents: true
+    };
+    const formData2 = config.buildFormData(params2, mockFiles);
+    expect(formData2.get('removeCertSign')).toBe('true');
+    expect(formData2.get('generateToc')).toBe('true');
+  });
+});

frontend/src/hooks/tools/merge/useMergeOperation.ts

@@ -0,0 +1,41 @@
+import { useTranslation } from 'react-i18next';
+import { useToolOperation, ResponseHandler, ToolOperationConfig, ToolType } from '../shared/useToolOperation';
+import { createStandardErrorHandler } from '../../../utils/toolErrorHandler';
+import { MergeParameters } from './useMergeParameters';
+
+const buildFormData = (parameters: MergeParameters, files: File[]): FormData => {
+  const formData = new FormData();
+
+  files.forEach((file) => {
+    formData.append("fileInput", file);
+  });
+  formData.append("sortType", "orderProvided"); // Always use orderProvided since UI handles sorting
+  formData.append("removeCertSign", parameters.removeDigitalSignature.toString());
+  formData.append("generateToc", parameters.generateTableOfContents.toString());
+
+  return formData;
+};
+
+const mergeResponseHandler: ResponseHandler = (blob: Blob, originalFiles: File[]): File[] => {
+  const filename = `merged_${originalFiles[0].name}`
+  return [new File([blob], filename, { type: 'application/pdf' })];
+};
+
+// Operation configuration for automation
+export const mergeOperationConfig: ToolOperationConfig<MergeParameters> = {
+  toolType: ToolType.multiFile,
+  buildFormData,
+  operationType: 'merge',
+  endpoint: '/api/v1/general/merge-pdfs',
+  filePrefix: 'merged_',
+  responseHandler: mergeResponseHandler,
+};
+
+export const useMergeOperation = () => {
+  const { t } = useTranslation();
+
+  return useToolOperation<MergeParameters>({
+    ...mergeOperationConfig,
+    getErrorMessage: createStandardErrorHandler(t('merge.error.failed', 'An error occurred while merging the PDFs.'))
+  });
+};

frontend/src/hooks/tools/merge/useMergeParameters.test.ts

@@ -0,0 +1,68 @@
+import { describe, expect, test } from 'vitest';
+import { renderHook, act } from '@testing-library/react';
+import { useMergeParameters, defaultParameters } from './useMergeParameters';
+
+describe('useMergeParameters', () => {
+  test('should initialize with default parameters', () => {
+    const { result } = renderHook(() => useMergeParameters());
+
+    expect(result.current.parameters).toStrictEqual(defaultParameters);
+  });
+
+  test.each([
+    { paramName: 'removeDigitalSignature' as const, value: true },
+    { paramName: 'removeDigitalSignature' as const, value: false },
+    { paramName: 'generateTableOfContents' as const, value: true },
+    { paramName: 'generateTableOfContents' as const, value: false }
+  ])('should update parameter $paramName to $value', ({ paramName, value }) => {
+    const { result } = renderHook(() => useMergeParameters());
+
+    act(() => {
+      result.current.updateParameter(paramName, value);
+    });
+
+    expect(result.current.parameters[paramName]).toBe(value);
+  });
+
+  test('should reset parameters to defaults', () => {
+    const { result } = renderHook(() => useMergeParameters());
+
+    // First, change some parameters
+    act(() => {
+      result.current.updateParameter('removeDigitalSignature', true);
+      result.current.updateParameter('generateTableOfContents', true);
+    });
+
+    expect(result.current.parameters.removeDigitalSignature).toBe(true);
+    expect(result.current.parameters.generateTableOfContents).toBe(true);
+
+    // Then reset
+    act(() => {
+      result.current.resetParameters();
+    });
+
+    expect(result.current.parameters).toStrictEqual(defaultParameters);
+  });
+
+  test('should validate parameters correctly - always returns true', () => {
+    const { result } = renderHook(() => useMergeParameters());
+
+    // Default state should be valid
+    expect(result.current.validateParameters()).toBe(true);
+
+    // Change parameters and validate again
+    act(() => {
+      result.current.updateParameter('removeDigitalSignature', true);
+      result.current.updateParameter('generateTableOfContents', true);
+    });
+
+    expect(result.current.validateParameters()).toBe(true);
+
+    // Reset and validate again
+    act(() => {
+      result.current.resetParameters();
+    });
+
+    expect(result.current.validateParameters()).toBe(true);
+  });
+});

frontend/src/hooks/tools/merge/useMergeParameters.ts

@@ -0,0 +1,21 @@
+import { BaseParameters } from '../../../types/parameters';
+import { BaseParametersHook, useBaseParameters } from '../shared/useBaseParameters';
+
+export interface MergeParameters extends BaseParameters {
+  removeDigitalSignature: boolean;
+  generateTableOfContents: boolean;
+};
+
+export const defaultParameters: MergeParameters = {
+  removeDigitalSignature: false,
+  generateTableOfContents: false,
+};
+
+export type MergeParametersHook = BaseParametersHook<MergeParameters>;
+
+export const useMergeParameters = (): MergeParametersHook => {
+  return useBaseParameters({
+    defaultParameters,
+    endpointName: "merge-pdfs",
+  });
+};

frontend/src/hooks/tools/redact/useRedactOperation.test.ts

@@ -0,0 +1,142 @@
+import { describe, expect, test, vi, beforeEach } from 'vitest';
+import { renderHook } from '@testing-library/react';
+import { buildRedactFormData, redactOperationConfig, useRedactOperation } from './useRedactOperation';
+import { defaultParameters, RedactParameters } from './useRedactParameters';
+
+// Mock the useToolOperation hook
+vi.mock('../shared/useToolOperation', async () => {
+  const actual = await vi.importActual('../shared/useToolOperation');  // Need to keep ToolType etc.
+  return {
+    ...actual,
+    useToolOperation: vi.fn()
+  };
+});
+
+// Mock the translation hook
+vi.mock('react-i18next', () => ({
+  useTranslation: () => ({ t: vi.fn((_key: string, fallback: string) => fallback) })
+}));
+
+// Mock the error handler utility
+vi.mock('../../../utils/toolErrorHandler', () => ({
+  createStandardErrorHandler: vi.fn(() => vi.fn())
+}));
+
+describe('buildRedactFormData', () => {
+  const mockFile = new File(['test content'], 'test.pdf', { type: 'application/pdf' });
+
+  test('should build form data for automatic mode', () => {
+    const parameters: RedactParameters = {
+      ...defaultParameters,
+      mode: 'automatic',
+      wordsToRedact: ['Confidential', 'Secret'],
+      useRegex: true,
+      wholeWordSearch: true,
+      redactColor: '#FF0000',
+      customPadding: 0.5,
+      convertPDFToImage: false,
+    };
+
+    const formData = buildRedactFormData(parameters, mockFile);
+
+    expect(formData.get('fileInput')).toBe(mockFile);
+    expect(formData.get('listOfText')).toBe('Confidential\nSecret');
+    expect(formData.get('useRegex')).toBe('true');
+    expect(formData.get('wholeWordSearch')).toBe('true');
+    expect(formData.get('redactColor')).toBe('FF0000'); // Hash should be removed
+    expect(formData.get('customPadding')).toBe('0.5');
+    expect(formData.get('convertPDFToImage')).toBe('false');
+  });
+
+  test('should handle empty words array', () => {
+    const parameters: RedactParameters = {
+      ...defaultParameters,
+      mode: 'automatic',
+      wordsToRedact: [],
+    };
+
+    const formData = buildRedactFormData(parameters, mockFile);
+
+    expect(formData.get('listOfText')).toBe('');
+  });
+
+  test('should join multiple words with newlines', () => {
+    const parameters: RedactParameters = {
+      ...defaultParameters,
+      mode: 'automatic',
+      wordsToRedact: ['Word1', 'Word2', 'Word3'],
+    };
+
+    const formData = buildRedactFormData(parameters, mockFile);
+
+    expect(formData.get('listOfText')).toBe('Word1\nWord2\nWord3');
+  });
+
+  test.each([
+    { description: 'remove hash from redact color', redactColor: '#123456', expected: '123456' },
+    { description: 'handle redact color without hash', redactColor: 'ABCDEF', expected: 'ABCDEF' },
+  ])('should $description', ({ redactColor, expected }) => {
+    const parameters: RedactParameters = {
+      ...defaultParameters,
+      mode: 'automatic',
+      redactColor,
+    };
+
+    const formData = buildRedactFormData(parameters, mockFile);
+
+    expect(formData.get('redactColor')).toBe(expected);
+  });
+
+  test('should convert boolean parameters to strings', () => {
+    const parameters: RedactParameters = {
+      ...defaultParameters,
+      mode: 'automatic',
+      useRegex: false,
+      wholeWordSearch: true,
+      convertPDFToImage: false,
+    };
+
+    const formData = buildRedactFormData(parameters, mockFile);
+
+    expect(formData.get('useRegex')).toBe('false');
+    expect(formData.get('wholeWordSearch')).toBe('true');
+    expect(formData.get('convertPDFToImage')).toBe('false');
+  });
+
+  test('should throw error for manual mode (not implemented)', () => {
+    const parameters: RedactParameters = {
+      ...defaultParameters,
+      mode: 'manual',
+    };
+
+    expect(() => buildRedactFormData(parameters, mockFile)).toThrow('Manual redaction not yet implemented');
+  });
+});
+
+describe('useRedactOperation', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  test('should call useToolOperation with correct configuration', async () => {
+    const { useToolOperation } = await import('../shared/useToolOperation');
+    const mockUseToolOperation = vi.mocked(useToolOperation);
+
+    renderHook(() => useRedactOperation());
+
+    expect(mockUseToolOperation).toHaveBeenCalledWith({
+      ...redactOperationConfig,
+      getErrorMessage: expect.any(Function),
+    });
+  });
+
+  test('should provide error handler to useToolOperation', async () => {
+    const { useToolOperation } = await import('../shared/useToolOperation');
+    const mockUseToolOperation = vi.mocked(useToolOperation);
+
+    renderHook(() => useRedactOperation());
+
+    const callArgs = mockUseToolOperation.mock.calls[0][0];
+    expect(typeof callArgs.getErrorMessage).toBe('function');
+  });
+});

frontend/src/hooks/tools/redact/useRedactOperation.ts

@@ -0,0 +1,51 @@
+import { useTranslation } from 'react-i18next';
+import { useToolOperation, ToolType } from '../shared/useToolOperation';
+import { createStandardErrorHandler } from '../../../utils/toolErrorHandler';
+import { RedactParameters, defaultParameters } from './useRedactParameters';
+
+// Static configuration that can be used by both the hook and automation executor
+export const buildRedactFormData = (parameters: RedactParameters, file: File): FormData => {
+  const formData = new FormData();
+  formData.append("fileInput", file);
+
+  if (parameters.mode === 'automatic') {
+    // Convert array to newline-separated string as expected by backend
+    formData.append("listOfText", parameters.wordsToRedact.join('\n'));
+    formData.append("useRegex", parameters.useRegex.toString());
+    formData.append("wholeWordSearch", parameters.wholeWordSearch.toString());
+    formData.append("redactColor", parameters.redactColor.replace('#', ''));
+    formData.append("customPadding", parameters.customPadding.toString());
+    formData.append("convertPDFToImage", parameters.convertPDFToImage.toString());
+  } else {
+    // Manual mode parameters would go here when implemented
+    throw new Error('Manual redaction not yet implemented');
+  }
+
+  return formData;
+};
+
+// Static configuration object
+export const redactOperationConfig = {
+  toolType: ToolType.singleFile,
+  buildFormData: buildRedactFormData,
+  operationType: 'redact',
+  endpoint: (parameters: RedactParameters) => {
+    if (parameters.mode === 'automatic') {
+      return '/api/v1/security/auto-redact';
+    } else {
+      // Manual redaction endpoint would go here when implemented
+      throw new Error('Manual redaction not yet implemented');
+    }
+  },
+  filePrefix: 'redacted_',
+  defaultParameters,
+} as const;
+
+export const useRedactOperation = () => {
+  const { t } = useTranslation();
+
+  return useToolOperation<RedactParameters>({
+    ...redactOperationConfig,
+    getErrorMessage: createStandardErrorHandler(t('redact.error.failed', 'An error occurred while redacting the PDF.'))
+  });
+};

frontend/src/hooks/tools/redact/useRedactParameters.test.ts

@@ -0,0 +1,134 @@
+import { describe, expect, test } from 'vitest';
+import { renderHook, act } from '@testing-library/react';
+import { useRedactParameters, defaultParameters } from './useRedactParameters';
+
+describe('useRedactParameters', () => {
+  test('should initialize with default parameters', () => {
+    const { result } = renderHook(() => useRedactParameters());
+
+    expect(result.current.parameters).toStrictEqual(defaultParameters);
+  });
+
+  test.each([
+    { paramName: 'mode' as const, value: 'manual' as const },
+    { paramName: 'wordsToRedact' as const, value: ['word1', 'word2'] },
+    { paramName: 'useRegex' as const, value: true },
+    { paramName: 'wholeWordSearch' as const, value: true },
+    { paramName: 'redactColor' as const, value: '#FF0000' },
+    { paramName: 'customPadding' as const, value: 0.5 },
+    { paramName: 'convertPDFToImage' as const, value: false }
+  ])('should update parameter $paramName', ({ paramName, value }) => {
+    const { result } = renderHook(() => useRedactParameters());
+
+    act(() => {
+      result.current.updateParameter(paramName, value);
+    });
+
+    expect(result.current.parameters[paramName]).toStrictEqual(value);
+  });
+
+  test('should reset parameters to defaults', () => {
+    const { result } = renderHook(() => useRedactParameters());
+
+    // Modify some parameters
+    act(() => {
+      result.current.updateParameter('mode', 'manual');
+      result.current.updateParameter('wordsToRedact', ['test']);
+      result.current.updateParameter('useRegex', true);
+    });
+
+    // Reset parameters
+    act(() => {
+      result.current.resetParameters();
+    });
+
+    expect(result.current.parameters).toStrictEqual(defaultParameters);
+  });
+
+  describe('validation', () => {
+    test.each([
+      { description: 'validate when wordsToRedact has non-empty words in automatic mode', wordsToRedact: ['word1', 'word2'], expected: true },
+      { description: 'not validate when wordsToRedact is empty in automatic mode', wordsToRedact: [], expected: false },
+      { description: 'not validate when wordsToRedact contains only empty strings in automatic mode', wordsToRedact: ['', '  ', ''], expected: false },
+      { description: 'validate when wordsToRedact contains at least one non-empty word in automatic mode', wordsToRedact: ['', 'valid', '  '], expected: true },
+    ])('should $description', ({ wordsToRedact, expected }) => {
+      const { result } = renderHook(() => useRedactParameters());
+
+      act(() => {
+        result.current.updateParameter('mode', 'automatic');
+        result.current.updateParameter('wordsToRedact', wordsToRedact);
+      });
+
+      expect(result.current.validateParameters()).toBe(expected);
+    });
+
+    test('should not validate in manual mode (not implemented)', () => {
+      const { result } = renderHook(() => useRedactParameters());
+
+      act(() => {
+        result.current.updateParameter('mode', 'manual');
+      });
+
+      expect(result.current.validateParameters()).toBe(false);
+    });
+  });
+
+  describe('endpoint handling', () => {
+    test('should return correct endpoint for automatic mode', () => {
+      const { result } = renderHook(() => useRedactParameters());
+
+      act(() => {
+        result.current.updateParameter('mode', 'automatic');
+      });
+
+      expect(result.current.getEndpointName()).toBe('/api/v1/security/auto-redact');
+    });
+
+    test('should throw error for manual mode (not implemented)', () => {
+      const { result } = renderHook(() => useRedactParameters());
+
+      act(() => {
+        result.current.updateParameter('mode', 'manual');
+      });
+
+      expect(() => result.current.getEndpointName()).toThrow('Manual redaction not yet implemented');
+    });
+  });
+
+  test('should maintain parameter state across updates', () => {
+    const { result } = renderHook(() => useRedactParameters());
+
+    act(() => {
+      result.current.updateParameter('redactColor', '#FF0000');
+      result.current.updateParameter('customPadding', 0.5);
+      result.current.updateParameter('wordsToRedact', ['word1']);
+    });
+
+    // All parameters should be updated
+    expect(result.current.parameters.redactColor).toBe('#FF0000');
+    expect(result.current.parameters.customPadding).toBe(0.5);
+    expect(result.current.parameters.wordsToRedact).toEqual(['word1']);
+
+    // Other parameters should remain at defaults
+    expect(result.current.parameters.mode).toBe('automatic');
+    expect(result.current.parameters.useRegex).toBe(false);
+    expect(result.current.parameters.wholeWordSearch).toBe(false);
+    expect(result.current.parameters.convertPDFToImage).toBe(true);
+  });
+
+  test('should handle array parameter updates correctly', () => {
+    const { result } = renderHook(() => useRedactParameters());
+
+    act(() => {
+      result.current.updateParameter('wordsToRedact', ['initial']);
+    });
+
+    expect(result.current.parameters.wordsToRedact).toEqual(['initial']);
+
+    act(() => {
+      result.current.updateParameter('wordsToRedact', ['updated', 'multiple']);
+    });
+
+    expect(result.current.parameters.wordsToRedact).toEqual(['updated', 'multiple']);
+  });
+});

frontend/src/hooks/tools/redact/useRedactParameters.ts

@@ -0,0 +1,48 @@
+import { BaseParameters } from '../../../types/parameters';
+import { useBaseParameters, BaseParametersHook } from '../shared/useBaseParameters';
+
+export type RedactMode = 'automatic' | 'manual';
+
+export interface RedactParameters extends BaseParameters {
+  mode: RedactMode;
+
+  // Automatic redaction parameters
+  wordsToRedact: string[];
+  useRegex: boolean;
+  wholeWordSearch: boolean;
+  redactColor: string;
+  customPadding: number;
+  convertPDFToImage: boolean;
+}
+
+export const defaultParameters: RedactParameters = {
+  mode: 'automatic',
+  wordsToRedact: [],
+  useRegex: false,
+  wholeWordSearch: false,
+  redactColor: '#000000',
+  customPadding: 0.1,
+  convertPDFToImage: true,
+};
+
+export type RedactParametersHook = BaseParametersHook<RedactParameters>;
+
+export const useRedactParameters = (): RedactParametersHook => {
+  return useBaseParameters({
+    defaultParameters,
+    endpointName: (params) => {
+      if (params.mode === 'automatic') {
+        return '/api/v1/security/auto-redact';
+      }
+      // Manual redaction endpoint would go here when implemented
+      throw new Error('Manual redaction not yet implemented');
+    },
+    validateFn: (params) => {
+      if (params.mode === 'automatic') {
+        return params.wordsToRedact.length > 0 && params.wordsToRedact.some(word => word.trim().length > 0);
+      }
+      // Manual mode validation would go here when implemented
+      return false;
+    }
+  });
+};

frontend/src/hooks/tools/removePassword/useRemovePasswordOperation.test.ts

@@ -97,7 +97,7 @@ describe('useRemovePasswordOperation', () => {
   test.each([
     { property: 'toolType' as const, expectedValue: ToolType.singleFile },
     { property: 'endpoint' as const, expectedValue: '/api/v1/security/remove-password' },
-    { property: 'filePrefix' as const, expectedValue: 'translated-removePassword.filenamePrefix_' },
+    { property: 'filePrefix' as const, expectedValue: undefined },
     { property: 'operationType' as const, expectedValue: 'removePassword' }
   ])('should configure $property correctly', ({ property, expectedValue }) => {
     renderHook(() => useRemovePasswordOperation());

frontend/src/hooks/tools/shared/useBaseTool.ts

@@ -38,7 +38,9 @@ export function useBaseTool<TParams>(
   useParams: () => BaseParametersHook<TParams>,
   useOperation: () => ToolOperationHook<TParams>,
   props: BaseToolProps,
+  options?: { minFiles?: number }
 ): BaseToolReturn<TParams> {
+  const minFiles = options?.minFiles ?? 1;
   const { onPreviewFile, onComplete, onError } = props;
 
   // File selection
@@ -96,7 +98,7 @@ export function useBaseTool<TParams>(
   }, [operation, onPreviewFile]);
 
   // Standard computed state
-  const hasFiles = selectedFiles.length > 0;
+  const hasFiles = selectedFiles.length >= minFiles;
   const hasResults = operation.files.length > 0 || operation.downloadUrl !== null;
   const settingsCollapsed = !hasFiles || hasResults;
 

frontend/src/hooks/tools/shared/useToolApiCalls.ts

@@ -8,6 +8,7 @@ export interface ApiCallsConfig<TParams = void> {
   buildFormData: (params: TParams, file: File) => FormData;
   filePrefix?: string;
   responseHandler?: ResponseHandler;
+  preserveBackendFilename?: boolean;
 }
 
 export const useToolApiCalls = <TParams = void>() => {
@@ -46,7 +47,8 @@ export const useToolApiCalls = <TParams = void>() => {
           response.data,
           [file],
           config.filePrefix,
-          config.responseHandler
+          config.responseHandler,
+          config.preserveBackendFilename ? response.headers : undefined
         );
         processedFiles.push(...responseFiles);
 

frontend/src/hooks/tools/shared/useToolOperation.ts

@@ -6,9 +6,9 @@ import { useToolState, type ProcessingProgress } from './useToolState';
 import { useToolApiCalls, type ApiCallsConfig } from './useToolApiCalls';
 import { useToolResources } from './useToolResources';
 import { extractErrorMessage } from '../../../utils/toolErrorHandler';
-import { StirlingFile, extractFiles, FileId, StirlingFileStub, createStirlingFile, toStirlingFileStub } from '../../../types/fileContext';
+import { StirlingFile, extractFiles, FileId, StirlingFileStub, createStirlingFile, createNewStirlingFileStub } from '../../../types/fileContext';
 import { ResponseHandler } from '../../../utils/toolResponseProcessor';
-import { createChildStub } from '../../../contexts/file/fileActions';
+import { createChildStub, generateProcessedFileMetadata } from '../../../contexts/file/fileActions';
 
 // Re-export for backwards compatibility
 export type { ProcessingProgress, ResponseHandler };
@@ -34,6 +34,13 @@ interface BaseToolOperationConfig<TParams> {
   /** Prefix added to processed filenames (e.g., 'compressed_', 'split_') */
   filePrefix?: string;
 
+  /**
+   * Whether to preserve the filename provided by the backend in response headers.
+   * When true, ignores filePrefix and uses the filename from Content-Disposition header.
+   * Useful for tools like auto-rename where the backend determines the final filename.
+   */
+  preserveBackendFilename?: boolean;
+
   /** How to handle API responses (e.g., ZIP extraction, single file response) */
   responseHandler?: ResponseHandler;
 
@@ -181,7 +188,8 @@ export const useToolOperation = <TParams>(
             endpoint: config.endpoint,
             buildFormData: config.buildFormData,
             filePrefix: config.filePrefix,
-            responseHandler: config.responseHandler
+            responseHandler: config.responseHandler,
+            preserveBackendFilename: config.preserveBackendFilename
           };
           processedFiles = await processFiles(
             params,
@@ -264,12 +272,27 @@ export const useToolOperation = <TParams>(
           toolName: config.operationType,
           timestamp: Date.now()
         };
-        console.log("tool complete inputs ")
-        const outputStirlingFileStubs = processedFiles.length != inputStirlingFileStubs.length
-          ? processedFiles.map((file, index) => toStirlingFileStub(file, undefined, thumbnails[index]))
-           : processedFiles.map((resultingFile, index) =>
-           createChildStub(inputStirlingFileStubs[index], newToolOperation, resultingFile, thumbnails[index])
+
+        // Generate fresh processedFileMetadata for all processed files to ensure accuracy
+        actions.setStatus('Generating metadata for processed files...');
+        const processedFileMetadataArray = await Promise.all(
+          processedFiles.map(file => generateProcessedFileMetadata(file))
         );
+        const shouldBranchHistory = processedFiles.length != inputStirlingFileStubs.length;
+        // Create output stubs with fresh metadata (no inheritance of stale processedFile data)
+        const outputStirlingFileStubs = shouldBranchHistory
+          ? processedFiles.map((file, index) =>
+              createNewStirlingFileStub(file, undefined, thumbnails[index], processedFileMetadataArray[index])
+            )
+          : processedFiles.map((resultingFile, index) =>
+              createChildStub(
+                inputStirlingFileStubs[index],
+                newToolOperation,
+                resultingFile,
+                thumbnails[index],
+                processedFileMetadataArray[index]
+              )
+            );
 
         // Create StirlingFile objects from processed files and child stubs
         const outputStirlingFiles = processedFiles.map((file, index) => {

frontend/src/i18n.ts

@@ -59,6 +59,7 @@ i18n
   .init({
     fallbackLng: 'en-GB',
     supportedLngs: Object.keys(supportedLanguages),
+    load: 'currentOnly',
     nonExplicitSupportedLngs: false,
     debug: process.env.NODE_ENV === 'development',
 

frontend/src/tests/convert/ConvertIntegration.test.tsx

@@ -141,7 +141,7 @@ describe('Convert Tool Integration Tests', () => {
 
       // Verify hook state updates
       expect(result.current.downloadUrl).toBeTruthy();
-      expect(result.current.downloadFilename).toBe('test_converted.png');
+      expect(result.current.downloadFilename).toBe('test.png');
       expect(result.current.isLoading).toBe(false);
       expect(result.current.errorMessage).toBe(null);
     });
@@ -363,7 +363,7 @@ describe('Convert Tool Integration Tests', () => {
 
       // Verify hook state updates correctly
       expect(result.current.downloadUrl).toBeTruthy();
-      expect(result.current.downloadFilename).toBe('test_converted.csv');
+      expect(result.current.downloadFilename).toBe('test.csv');
       expect(result.current.isLoading).toBe(false);
       expect(result.current.errorMessage).toBe(null);
     });

frontend/src/tools/AutoRename.tsx

@@ -0,0 +1,44 @@
+import { useTranslation } from "react-i18next";
+import { createToolFlow } from "../components/tools/shared/createToolFlow";
+import { useBaseTool } from "../hooks/tools/shared/useBaseTool";
+import { BaseToolProps } from "../types/tool";
+
+import { useAutoRenameParameters } from "../hooks/tools/autoRename/useAutoRenameParameters";
+import { useAutoRenameOperation } from "../hooks/tools/autoRename/useAutoRenameOperation";
+import { useAutoRenameTips } from "../components/tooltips/useAutoRenameTips";
+
+const AutoRename =(props: BaseToolProps) => {
+  const { t } = useTranslation();
+
+  const base = useBaseTool(
+    '"auto-rename-pdf-file',
+    useAutoRenameParameters,
+    useAutoRenameOperation,
+    props
+  );
+
+return createToolFlow({
+    title: { title:t("auto-rename.title", "Auto Rename PDF"), description: t("auto-rename.description", "Auto Rename PDF"), tooltip: useAutoRenameTips()},
+    files: {
+      selectedFiles: base.selectedFiles,
+      isCollapsed: base.hasResults,
+    },
+    steps: [],
+    executeButton: {
+      text: t("auto-rename.submit", "Auto Rename"),
+      isVisible: !base.hasResults,
+      loadingText: t("loading"),
+      onClick: base.handleExecute,
+      disabled: !base.params.validateParameters() || !base.hasFiles || !base.endpointEnabled,
+    },
+    review: {
+      isVisible: base.hasResults,
+      operation: base.operation,
+      title: t("auto-rename.results.title", "Auto-Rename Results"),
+      onFileClick: base.handleThumbnailClick,
+      onUndo: base.handleUndo,
+    },
+  });
+};
+
+export default AutoRename;

frontend/src/tools/Automate.tsx

@@ -1,4 +1,4 @@
-import React, { useState, useMemo } from "react";
+import React, { useState } from "react";
 import { useTranslation } from "react-i18next";
 import { useFileSelection } from "../contexts/FileContext";
 import { useNavigationActions } from "../contexts/NavigationContext";
@@ -161,25 +161,10 @@ const Automate = ({ onPreviewFile, onComplete, onError }: BaseToolProps) => {
     content
   });
 
-  // Dynamic file placeholder based on supported types
-  const filesPlaceholder = useMemo(() => {
-    if (currentStep === AUTOMATION_STEPS.RUN && stepData.automation?.operations?.length) {
-      const firstOperation = stepData.automation.operations[0];
-      const toolConfig = toolRegistry[firstOperation.operation as keyof typeof toolRegistry];
-
-      // Check if the tool has supportedFormats that include non-PDF formats
-      if (toolConfig?.supportedFormats && toolConfig.supportedFormats.length > 1) {
-        return t('automate.files.placeholder.multiFormat', 'Select files to process (supports various formats)');
-      }
-    }
-    return t('automate.files.placeholder', 'Select PDF files to process with this automation');
-  }, [currentStep, stepData.automation, toolRegistry, t]);
-
   // Always create files step to avoid conditional hook calls
   const filesStep = createFilesToolStep(createStep, {
     selectedFiles,
     isCollapsed: hasResults,
-    placeholder: filesPlaceholder
   });
 
   const automationSteps = [

frontend/src/tools/Convert.tsx

@@ -100,7 +100,6 @@ const Convert = ({ onPreviewFile, onComplete, onError }: BaseToolProps) => {
     files: {
       selectedFiles,
       isCollapsed: hasResults,
-      placeholder: t("convert.selectFilesPlaceholder", "Select files in the main view to get started"),
     },
     steps: [
       {

frontend/src/tools/Flatten.tsx

@@ -22,7 +22,6 @@ const Flatten = (props: BaseToolProps) => {
     files: {
       selectedFiles: base.selectedFiles,
       isCollapsed: base.hasResults,
-      placeholder: t("flatten.files.placeholder", "Select a PDF file in the main view to get started"),
     },
     steps: [
       {
@@ -59,4 +58,4 @@ const Flatten = (props: BaseToolProps) => {
 // Static method to get the operation hook for automation
 Flatten.tool = () => useFlattenOperation;
 
-export default Flatten as ToolComponent;
+export default Flatten as ToolComponent;

frontend/src/tools/Merge.tsx

@@ -0,0 +1,98 @@
+import { useCallback } from "react";
+import { useTranslation } from "react-i18next";
+import { createToolFlow } from "../components/tools/shared/createToolFlow";
+import MergeSettings from "../components/tools/merge/MergeSettings";
+import MergeFileSorter from "../components/tools/merge/MergeFileSorter";
+import { useMergeParameters } from "../hooks/tools/merge/useMergeParameters";
+import { useMergeOperation } from "../hooks/tools/merge/useMergeOperation";
+import { useBaseTool } from "../hooks/tools/shared/useBaseTool";
+import { BaseToolProps, ToolComponent } from "../types/tool";
+import { useMergeTips } from "../components/tooltips/useMergeTips";
+import { useFileManagement, useSelectedFiles, useAllFiles } from "../contexts/FileContext";
+
+const Merge = (props: BaseToolProps) => {
+  const { t } = useTranslation();
+  const mergeTips = useMergeTips();
+
+  // File selection hooks for custom sorting
+  const { fileIds } = useAllFiles();
+  const { selectedRecords } = useSelectedFiles();
+  const { reorderFiles } = useFileManagement();
+
+  const base = useBaseTool(
+    'merge',
+    useMergeParameters,
+    useMergeOperation,
+    props,
+    { minFiles: 2 }
+  );
+
+  // Custom file sorting logic for merge tool
+  const sortFiles = useCallback((sortType: 'filename' | 'dateModified', ascending: boolean = true) => {
+    const sortedRecords = [...selectedRecords].sort((recordA, recordB) => {
+      let comparison = 0;
+      switch (sortType) {
+        case 'filename':
+          comparison = recordA.name.localeCompare(recordB.name);
+          break;
+        case 'dateModified':
+          comparison = recordA.lastModified - recordB.lastModified;
+          break;
+      }
+      return ascending ? comparison : -comparison;
+    });
+
+    const selectedIds = sortedRecords.map(record => record.id);
+    const deselectedIds = fileIds.filter(id => !selectedIds.includes(id));
+    reorderFiles([...selectedIds, ...deselectedIds]);
+  }, [selectedRecords, fileIds, reorderFiles]);
+
+  return createToolFlow({
+    files: {
+      selectedFiles: base.selectedFiles,
+      isCollapsed: base.hasResults,
+      minFiles: 2,
+    },
+    steps: [
+      {
+        title: "Sort Files",
+        isCollapsed: base.settingsCollapsed,
+        content: (
+          <MergeFileSorter
+            onSortFiles={sortFiles}
+            disabled={!base.hasFiles || base.endpointLoading}
+          />
+        ),
+      },
+      {
+        title: "Settings",
+        isCollapsed: base.settingsCollapsed,
+        onCollapsedClick: base.settingsCollapsed ? base.handleSettingsReset : undefined,
+        tooltip: mergeTips,
+        content: (
+          <MergeSettings
+            parameters={base.params.parameters}
+            onParameterChange={base.params.updateParameter}
+            disabled={base.endpointLoading}
+          />
+        ),
+      },
+    ],
+    executeButton: {
+      text: t("merge.submit", "Merge PDFs"),
+      isVisible: !base.hasResults,
+      loadingText: t("loading"),
+      onClick: base.handleExecute,
+      disabled: !base.params.validateParameters() || !base.hasFiles || !base.endpointEnabled,
+    },
+    review: {
+      isVisible: base.hasResults,
+      operation: base.operation,
+      title: t("merge.title", "Merge Results"),
+      onFileClick: base.handleThumbnailClick,
+      onUndo: base.handleUndo,
+    },
+  });
+};
+
+export default Merge as ToolComponent;

frontend/src/tools/Redact.tsx

@@ -0,0 +1,120 @@
+import { useTranslation } from "react-i18next";
+import { useState } from "react";
+import { createToolFlow } from "../components/tools/shared/createToolFlow";
+import RedactModeSelector from "../components/tools/redact/RedactModeSelector";
+import { useRedactParameters } from "../hooks/tools/redact/useRedactParameters";
+import { useRedactOperation } from "../hooks/tools/redact/useRedactOperation";
+import { useBaseTool } from "../hooks/tools/shared/useBaseTool";
+import { BaseToolProps, ToolComponent } from "../types/tool";
+import { useRedactModeTips, useRedactWordsTips, useRedactAdvancedTips } from "../components/tooltips/useRedactTips";
+import RedactAdvancedSettings from "../components/tools/redact/RedactAdvancedSettings";
+import WordsToRedactInput from "../components/tools/redact/WordsToRedactInput";
+
+const Redact = (props: BaseToolProps) => {
+  const { t } = useTranslation();
+
+  // State for managing step collapse status
+  const [methodCollapsed, setMethodCollapsed] = useState(false);
+  const [wordsCollapsed, setWordsCollapsed] = useState(false);
+  const [advancedCollapsed, setAdvancedCollapsed] = useState(true);
+
+  const base = useBaseTool(
+    'redact',
+    useRedactParameters,
+    useRedactOperation,
+    props
+  );
+
+  // Tooltips for each step
+  const modeTips = useRedactModeTips();
+  const wordsTips = useRedactWordsTips();
+  const advancedTips = useRedactAdvancedTips();
+
+  const isExecuteDisabled = () => {
+    if (base.params.parameters.mode === 'manual') {
+      return true; // Manual mode not implemented yet
+    }
+    return !base.params.validateParameters() || !base.hasFiles || !base.endpointEnabled;
+  };
+
+  // Compute actual collapsed state based on results and user state
+  const getActualCollapsedState = (userCollapsed: boolean) => {
+    return (!base.hasFiles || base.hasResults) ? true : userCollapsed; // Force collapse when results are shown
+  };
+
+  // Build conditional steps based on redaction mode
+  const buildSteps = () => {
+    const steps = [
+      // Method selection step (always present)
+      {
+        title: t("redact.modeSelector.title", "Redaction Method"),
+        isCollapsed: getActualCollapsedState(methodCollapsed),
+        onCollapsedClick: () => base.settingsCollapsed ? base.handleSettingsReset() : setMethodCollapsed(!methodCollapsed),
+        tooltip: modeTips,
+        content: (
+          <RedactModeSelector
+            mode={base.params.parameters.mode}
+            onModeChange={(mode) => base.params.updateParameter('mode', mode)}
+            disabled={base.endpointLoading}
+          />
+        ),
+      }
+    ];
+
+    // Add mode-specific steps
+    if (base.params.parameters.mode === 'automatic') {
+      steps.push(
+        {
+          title: t("redact.auto.settings.title", "Redaction Settings"),
+          isCollapsed: getActualCollapsedState(wordsCollapsed),
+          onCollapsedClick: () => base.settingsCollapsed ? base.handleSettingsReset() : setWordsCollapsed(!wordsCollapsed),
+          tooltip: wordsTips,
+          content: <WordsToRedactInput
+            wordsToRedact={base.params.parameters.wordsToRedact}
+            onWordsChange={(words) => base.params.updateParameter('wordsToRedact', words)}
+            disabled={base.endpointLoading}
+          />,
+        },
+        {
+          title: t("redact.auto.settings.advancedTitle", "Advanced Settings"),
+          isCollapsed: getActualCollapsedState(advancedCollapsed),
+          onCollapsedClick: () => base.settingsCollapsed ? base.handleSettingsReset() : setAdvancedCollapsed(!advancedCollapsed),
+          tooltip: advancedTips,
+          content: <RedactAdvancedSettings
+            parameters={base.params.parameters}
+            onParameterChange={base.params.updateParameter}
+            disabled={base.endpointLoading}
+          />,
+        },
+      );
+    } else if (base.params.parameters.mode === 'manual') {
+      // Manual mode steps would go here when implemented
+    }
+
+    return steps;
+  };
+
+  return createToolFlow({
+    files: {
+      selectedFiles: base.selectedFiles,
+      isCollapsed: base.hasResults,
+    },
+    steps: buildSteps(),
+    executeButton: {
+      text: t("redact.submit", "Redact"),
+      isVisible: !base.hasResults,
+      loadingText: t("loading"),
+      onClick: base.handleExecute,
+      disabled: isExecuteDisabled(),
+    },
+    review: {
+      isVisible: base.hasResults,
+      operation: base.operation,
+      title: t("redact.title", "Redaction Results"),
+      onFileClick: base.handleThumbnailClick,
+      onUndo: base.handleUndo,
+    },
+  });
+};
+
+export default Redact as ToolComponent;

frontend/src/tools/RemoveCertificateSign.tsx

@@ -19,7 +19,6 @@ const RemoveCertificateSign = (props: BaseToolProps) => {
     files: {
       selectedFiles: base.selectedFiles,
       isCollapsed: base.hasResults,
-      placeholder: t("removeCertSign.files.placeholder", "Select a PDF file in the main view to get started"),
     },
     steps: [],
     executeButton: {

frontend/src/tools/Repair.tsx

@@ -19,7 +19,6 @@ const Repair = (props: BaseToolProps) => {
     files: {
       selectedFiles: base.selectedFiles,
       isCollapsed: base.hasResults,
-      placeholder: t("repair.files.placeholder", "Select a PDF file in the main view to get started"),
     },
     steps: [],
     executeButton: {

frontend/src/tools/Sanitize.tsx

@@ -20,7 +20,6 @@ const Sanitize = (props: BaseToolProps) => {
     files: {
       selectedFiles: base.selectedFiles,
       isCollapsed: base.hasResults,
-      placeholder: t("sanitize.files.placeholder", "Select a PDF file in the main view to get started"),
     },
     steps: [
       {

frontend/src/tools/SingleLargePage.tsx

@@ -19,7 +19,6 @@ const SingleLargePage = (props: BaseToolProps) => {
     files: {
       selectedFiles: base.selectedFiles,
       isCollapsed: base.hasResults,
-      placeholder: t("pdfToSinglePage.files.placeholder", "Select a PDF file in the main view to get started"),
     },
     steps: [],
     executeButton: {

frontend/src/tools/UnlockPdfForms.tsx

@@ -19,7 +19,6 @@ const UnlockPdfForms = (props: BaseToolProps) => {
     files: {
       selectedFiles: base.selectedFiles,
       isCollapsed: base.hasFiles || base.hasResults,
-      placeholder: t("unlockPDFForms.files.placeholder", "Select a PDF file in the main view to get started"),
     },
     steps: [],
     executeButton: {

frontend/src/types/file.ts

@@ -37,11 +37,11 @@ export interface BaseFileMetadata {
   size: number;
   lastModified: number;
   createdAt?: number; // When file was added to system
-  
+
   // File history tracking
   isLeaf?: boolean; // True if this file hasn't been processed yet
   originalFileId?: string; // Root file ID for grouping versions
-  versionNumber?: number; // Version number in chain
+  versionNumber: number; // Version number in chain
   parentFileId?: FileId; // Immediate parent file ID
   toolHistory?: Array<{
     toolName: string;

frontend/src/types/fileContext.ts

@@ -25,7 +25,8 @@ export type ModeType =
   | 'single-large-page'
   | 'repair'
   | 'unlockPdfForms'
-  | 'removeCertificateSign';
+  | 'removeCertificateSign'
+  | 'auto-rename-pdf-file';
 
 // Normalized state types
 export interface ProcessedFilePage {
@@ -39,7 +40,6 @@ export interface ProcessedFilePage {
 export interface ProcessedFileMetadata {
   pages: ProcessedFilePage[];
   totalPages?: number;
-  thumbnailUrl?: string;
   lastProcessed?: number;
   [key: string]: any;
 }
@@ -156,11 +156,11 @@ export function isFileObject(obj: any): obj is File | StirlingFile {
 
 
 
-export function toStirlingFileStub(
+export function createNewStirlingFileStub(
   file: File,
   id?: FileId,
-  thumbnail?: string
-
+  thumbnail?: string,
+  processedFileMetadata?: ProcessedFileMetadata
 ): StirlingFileStub {
   const fileId = id || createFileId();
   return {
@@ -172,7 +172,9 @@ export function toStirlingFileStub(
     quickKey: createQuickKey(file),
     createdAt: Date.now(),
     isLeaf: true, // New files are leaf nodes by default
-    thumbnailUrl: thumbnail
+    versionNumber: 1, // New files start at version 1
+    thumbnailUrl: thumbnail,
+    processedFile: processedFileMetadata
   };
 }
 

frontend/src/utils/automationExecutor.ts

@@ -2,8 +2,8 @@ import axios from 'axios';
 import { ToolRegistry } from '../data/toolsTaxonomy';
 import { AUTOMATION_CONSTANTS } from '../constants/automation';
 import { AutomationFileProcessor } from './automationFileProcessor';
-import { ResourceManager } from './resourceManager';
 import { ToolType } from '../hooks/tools/shared/useToolOperation';
+import { processResponse } from './toolResponseProcessor';
 
 
 /**
@@ -68,12 +68,17 @@ export const executeToolOperationWithPrefix = async (
       let result;
       if (response.data.type === 'application/pdf' ||
           (response.headers && response.headers['content-type'] === 'application/pdf')) {
-        // Single PDF response (e.g. split with merge option) - use original filename
-        const originalFileName = files[0]?.name || 'document.pdf';
-        const singleFile = new File([response.data], originalFileName, { type: 'application/pdf' });
+        // Single PDF response (e.g. split with merge option) - use processResponse to respect preserveBackendFilename
+        const processedFiles = await processResponse(
+          response.data,
+          files,
+          filePrefix,
+          undefined,
+          config.preserveBackendFilename ? response.headers : undefined
+        );
         result = {
           success: true,
-          files: [singleFile],
+          files: processedFiles,
           errors: []
         };
       } else {
@@ -85,7 +90,8 @@ export const executeToolOperationWithPrefix = async (
         console.warn(`⚠️ File processing warnings:`, result.errors);
       }
       // Apply prefix to files, replacing any existing prefix
-      const processedFiles = filePrefix
+      // Skip prefixing if preserveBackendFilename is true and backend provided a filename
+      const processedFiles = filePrefix && !config.preserveBackendFilename
         ? result.files.map(file => {
             const nameWithoutPrefix = file.name.replace(/^[^_]*_/, '');
             return new File([file], `${filePrefix}${nameWithoutPrefix}`, { type: file.type });
@@ -117,15 +123,16 @@ export const executeToolOperationWithPrefix = async (
 
         console.log(`📥 Response ${i+1} status: ${response.status}, size: ${response.data.size} bytes`);
 
-        // Create result file with automation prefix
-
-        const resultFile = ResourceManager.createResultFile(
+        // Create result file using processResponse to respect preserveBackendFilename setting
+        const processedFiles = await processResponse(
           response.data,
-          file.name,
-          filePrefix
+          [file],
+          filePrefix,
+          undefined,
+          config.preserveBackendFilename ? response.headers : undefined
         );
-        resultFiles.push(resultFile);
-        console.log(`✅ Created result file: ${resultFile.name}`);
+        resultFiles.push(...processedFiles);
+        console.log(`✅ Created result file(s): ${processedFiles.map(f => f.name).join(', ')}`);
       }
 
       console.log(`🎉 Single-file processing complete: ${resultFiles.length} files`);

frontend/src/utils/toolResponseProcessor.ts

@@ -1,10 +1,12 @@
 // Note: This utility should be used with useToolResources for ZIP operations
+import { getFilenameFromHeaders } from './fileResponseUtils';
 
 export type ResponseHandler = (blob: Blob, originalFiles: File[]) => Promise<File[]> | File[];
 
 /**
  * Processes a blob response into File(s).
  * - If a tool-specific responseHandler is provided, it is used.
+ * - If responseHeaders provided and contains Content-Disposition, uses that filename.
  * - Otherwise, create a single file using the filePrefix + original name.
  * - If filePrefix is empty, preserves the original filename.
  */
@@ -12,20 +14,35 @@ export async function processResponse(
   blob: Blob,
   originalFiles: File[],
   filePrefix?: string,
-  responseHandler?: ResponseHandler
+  responseHandler?: ResponseHandler,
+  responseHeaders?: Record<string, any>
 ): Promise<File[]> {
   if (responseHandler) {
     const out = await responseHandler(blob, originalFiles);
     return Array.isArray(out) ? out : [out as unknown as File];
   }
 
+  // Check if we should use the backend-provided filename from headers
+  // Only when responseHeaders are explicitly provided (indicating the operation requested this)
+  if (responseHeaders) {
+    const contentDisposition = responseHeaders['content-disposition'];
+    const backendFilename = getFilenameFromHeaders(contentDisposition);
+    if (backendFilename) {
+      const type = blob.type || responseHeaders['content-type'] || 'application/octet-stream';
+      return [new File([blob], backendFilename, { type })];
+    }
+    // If preserveBackendFilename was requested but no Content-Disposition header found,
+    // fall back to default behavior (this handles cases where backend doesn't set the header)
+  }
+
+  // Default behavior: use filePrefix + original name
   const original = originalFiles[0]?.name ?? 'result.pdf';
   // Only add prefix if it's not empty - this preserves original filenames for file history
   const name = filePrefix ? `${filePrefix}${original}` : original;
   const type = blob.type || 'application/octet-stream';
-  
+
   // File was modified by tool processing - set lastModified to current time
-  return [new File([blob], name, { 
+  return [new File([blob], name, {
     type,
     lastModified: Date.now()
   })];

testing/test_pdf_1.pdf

@@ -0,0 +1,74 @@
+%PDF-1.3
+%“Œ‹ž ReportLab Generated PDF document http://www.reportlab.com
+1 0 obj
+<<
+/F1 2 0 R /F2 3 0 R
+>>
+endobj
+2 0 obj
+<<
+/BaseFont /Helvetica /Encoding /WinAnsiEncoding /Name /F1 /Subtype /Type1 /Type /Font
+>>
+endobj
+3 0 obj
+<<
+/BaseFont /Helvetica-Bold /Encoding /WinAnsiEncoding /Name /F2 /Subtype /Type1 /Type /Font
+>>
+endobj
+4 0 obj
+<<
+/Contents 8 0 R /MediaBox [ 0 0 612 792 ] /Parent 7 0 R /Resources <<
+/Font 1 0 R /ProcSet [ /PDF /Text /ImageB /ImageC /ImageI ]
+>> /Rotate 0 /Trans <<
+
+>> 
+  /Type /Page
+>>
+endobj
+5 0 obj
+<<
+/PageMode /UseNone /Pages 7 0 R /Type /Catalog
+>>
+endobj
+6 0 obj
+<<
+/Author (anonymous) /CreationDate (D:20250819094504+01'00') /Creator (ReportLab PDF Library - www.reportlab.com) /Keywords () /ModDate (D:20250819094504+01'00') /Producer (ReportLab PDF Library - www.reportlab.com) 
+  /Subject (unspecified) /Title (untitled) /Trapped /False
+>>
+endobj
+7 0 obj
+<<
+/Count 1 /Kids [ 4 0 R ] /Type /Pages
+>>
+endobj
+8 0 obj
+<<
+/Filter [ /ASCII85Decode /FlateDecode ] /Length 147
+>>
+stream
+GarW00abco&4HDcidm(mI,3'DZY:^WQ,7!K+Bf&Mo_p+bJu"KZ.3A(M3%pEBpBe"=Bb3[h-Xt2ROZoe^Q)8NH>;#5qqB`Oee86NZp2V9^`:9`Y'Dq([aoCS4Veh*jH9C%+DV`*GHUK^ngc-TW~>endstream
+endobj
+xref
+0 9
+0000000000 65535 f 
+0000000073 00000 n 
+0000000114 00000 n 
+0000000221 00000 n 
+0000000333 00000 n 
+0000000526 00000 n 
+0000000594 00000 n 
+0000000890 00000 n 
+0000000949 00000 n 
+trailer
+<<
+/ID 
+[<cb35d644a26f0c9be3597a7f8189b123><cb35d644a26f0c9be3597a7f8189b123>]
+% ReportLab generated PDF document -- digest (http://www.reportlab.com)
+
+/Info 6 0 R
+/Root 5 0 R
+/Size 9
+>>
+startxref
+1186
+%%EOF

testing/test_pdf_2.pdf

@@ -0,0 +1,74 @@
+%PDF-1.3
+%“Œ‹ž ReportLab Generated PDF document http://www.reportlab.com
+1 0 obj
+<<
+/F1 2 0 R /F2 3 0 R
+>>
+endobj
+2 0 obj
+<<
+/BaseFont /Helvetica /Encoding /WinAnsiEncoding /Name /F1 /Subtype /Type1 /Type /Font
+>>
+endobj
+3 0 obj
+<<
+/BaseFont /Helvetica-Bold /Encoding /WinAnsiEncoding /Name /F2 /Subtype /Type1 /Type /Font
+>>
+endobj
+4 0 obj
+<<
+/Contents 8 0 R /MediaBox [ 0 0 612 792 ] /Parent 7 0 R /Resources <<
+/Font 1 0 R /ProcSet [ /PDF /Text /ImageB /ImageC /ImageI ]
+>> /Rotate 0 /Trans <<
+
+>> 
+  /Type /Page
+>>
+endobj
+5 0 obj
+<<
+/PageMode /UseNone /Pages 7 0 R /Type /Catalog
+>>
+endobj
+6 0 obj
+<<
+/Author (anonymous) /CreationDate (D:20250819094504+01'00') /Creator (ReportLab PDF Library - www.reportlab.com) /Keywords () /ModDate (D:20250819094504+01'00') /Producer (ReportLab PDF Library - www.reportlab.com) 
+  /Subject (unspecified) /Title (untitled) /Trapped /False
+>>
+endobj
+7 0 obj
+<<
+/Count 1 /Kids [ 4 0 R ] /Type /Pages
+>>
+endobj
+8 0 obj
+<<
+/Filter [ /ASCII85Decode /FlateDecode ] /Length 147
+>>
+stream
+GarW00abco&4HDcidm(mI,3'DZY:^WQ,7!K+Bf&Mo_p+bJu"KZ.3A(M3%pEBpBe"=Bb3[h-Xt2ROZoe^Q)8NH>;#5qqB`Oee86NZp3Iif`:9`Y'Dq([aoCS4Veh*jH9C%+DV`*GHUK^ngmo`i~>endstream
+endobj
+xref
+0 9
+0000000000 65535 f 
+0000000073 00000 n 
+0000000114 00000 n 
+0000000221 00000 n 
+0000000333 00000 n 
+0000000526 00000 n 
+0000000594 00000 n 
+0000000890 00000 n 
+0000000949 00000 n 
+trailer
+<<
+/ID 
+[<46f6a3460762da2956d1d3fc19ab996f><46f6a3460762da2956d1d3fc19ab996f>]
+% ReportLab generated PDF document -- digest (http://www.reportlab.com)
+
+/Info 6 0 R
+/Root 5 0 R
+/Size 9
+>>
+startxref
+1186
+%%EOF

testing/test_pdf_3.pdf

@@ -0,0 +1,74 @@
+%PDF-1.3
+%“Œ‹ž ReportLab Generated PDF document http://www.reportlab.com
+1 0 obj
+<<
+/F1 2 0 R /F2 3 0 R
+>>
+endobj
+2 0 obj
+<<
+/BaseFont /Helvetica /Encoding /WinAnsiEncoding /Name /F1 /Subtype /Type1 /Type /Font
+>>
+endobj
+3 0 obj
+<<
+/BaseFont /Helvetica-Bold /Encoding /WinAnsiEncoding /Name /F2 /Subtype /Type1 /Type /Font
+>>
+endobj
+4 0 obj
+<<
+/Contents 8 0 R /MediaBox [ 0 0 612 792 ] /Parent 7 0 R /Resources <<
+/Font 1 0 R /ProcSet [ /PDF /Text /ImageB /ImageC /ImageI ]
+>> /Rotate 0 /Trans <<
+
+>> 
+  /Type /Page
+>>
+endobj
+5 0 obj
+<<
+/PageMode /UseNone /Pages 7 0 R /Type /Catalog
+>>
+endobj
+6 0 obj
+<<
+/Author (anonymous) /CreationDate (D:20250819094504+01'00') /Creator (ReportLab PDF Library - www.reportlab.com) /Keywords () /ModDate (D:20250819094504+01'00') /Producer (ReportLab PDF Library - www.reportlab.com) 
+  /Subject (unspecified) /Title (untitled) /Trapped /False
+>>
+endobj
+7 0 obj
+<<
+/Count 1 /Kids [ 4 0 R ] /Type /Pages
+>>
+endobj
+8 0 obj
+<<
+/Filter [ /ASCII85Decode /FlateDecode ] /Length 147
+>>
+stream
+GarW0YmS?5&4HDC`<2TCEOpM_A^cO6ZEVtG&1rQ7k5R.W5uPe>'T[Ma*9KfZqZs*-57""%'<u)dPtNs!.p_7Cem+LKojd:CaF,4$g:S_<`9sPL'Dq([aoCSX;_^WU4Wa'KgNd255,.iQh#\m&~>endstream
+endobj
+xref
+0 9
+0000000000 65535 f 
+0000000073 00000 n 
+0000000114 00000 n 
+0000000221 00000 n 
+0000000333 00000 n 
+0000000526 00000 n 
+0000000594 00000 n 
+0000000890 00000 n 
+0000000949 00000 n 
+trailer
+<<
+/ID 
+[<8c4eba11c30780ded30147f80c0aa46f><8c4eba11c30780ded30147f80c0aa46f>]
+% ReportLab generated PDF document -- digest (http://www.reportlab.com)
+
+/Info 6 0 R
+/Root 5 0 R
+/Size 9
+>>
+startxref
+1186
+%%EOF

testing/test_pdf_4.pdf

@@ -0,0 +1,74 @@
+%PDF-1.3
+%“Œ‹ž ReportLab Generated PDF document http://www.reportlab.com
+1 0 obj
+<<
+/F1 2 0 R /F2 3 0 R
+>>
+endobj
+2 0 obj
+<<
+/BaseFont /Helvetica /Encoding /WinAnsiEncoding /Name /F1 /Subtype /Type1 /Type /Font
+>>
+endobj
+3 0 obj
+<<
+/BaseFont /Helvetica-Bold /Encoding /WinAnsiEncoding /Name /F2 /Subtype /Type1 /Type /Font
+>>
+endobj
+4 0 obj
+<<
+/Contents 8 0 R /MediaBox [ 0 0 612 792 ] /Parent 7 0 R /Resources <<
+/Font 1 0 R /ProcSet [ /PDF /Text /ImageB /ImageC /ImageI ]
+>> /Rotate 0 /Trans <<
+
+>> 
+  /Type /Page
+>>
+endobj
+5 0 obj
+<<
+/PageMode /UseNone /Pages 7 0 R /Type /Catalog
+>>
+endobj
+6 0 obj
+<<
+/Author (anonymous) /CreationDate (D:20250819094504+01'00') /Creator (ReportLab PDF Library - www.reportlab.com) /Keywords () /ModDate (D:20250819094504+01'00') /Producer (ReportLab PDF Library - www.reportlab.com) 
+  /Subject (unspecified) /Title (untitled) /Trapped /False
+>>
+endobj
+7 0 obj
+<<
+/Count 1 /Kids [ 4 0 R ] /Type /Pages
+>>
+endobj
+8 0 obj
+<<
+/Filter [ /ASCII85Decode /FlateDecode ] /Length 147
+>>
+stream
+GarW00abco&4HDcidm(mI,3'DZY:^WQ,7!K+Bf&Mo_p+bJu"KZ.3A(M3%pEBpBe"=Bb3[h-Xt2ROZoe^Q)8NH>;#5qqB`Oee86NZp3%Qb`:9`Y'Dq([aoCS4Veh*jH9C%+DV`*GHUK^nh.J$8~>endstream
+endobj
+xref
+0 9
+0000000000 65535 f 
+0000000073 00000 n 
+0000000114 00000 n 
+0000000221 00000 n 
+0000000333 00000 n 
+0000000526 00000 n 
+0000000594 00000 n 
+0000000890 00000 n 
+0000000949 00000 n 
+trailer
+<<
+/ID 
+[<ade40b97468692afaf20f74813f90619><ade40b97468692afaf20f74813f90619>]
+% ReportLab generated PDF document -- digest (http://www.reportlab.com)
+
+/Info 6 0 R
+/Root 5 0 R
+/Size 9
+>>
+startxref
+1186
+%%EOF