KnifeLemon · Oct 24, 2026 · Oct 22, 2026 · Oct 22, 2026 · Oct 22, 2026 · Oct 22, 2026
@@ -139,11 +139,19 @@ the drag donut shows files and flips on `FlipKeyPressed` / `FlipWheelTurned`: th
 can't hold an event back; Explorer and Finder ignore Tab during a drag) and reports one flip per key press.
 The editor's Front / Back switch (`ToolbarPageViewModel.EditingBack`) edits either list with the same drag and drop.
 
-## Crop overlay
+A group is one slice that opens up to six non-group actions. Its members may be conversions or interactive tools
+(for example the PDF Edit group contains Crop and the page editor); groups cannot contain another group. The group
+editor offers both kinds, and `UserDataStore.EnsureConsistency` removes missing, duplicate, nested or excess members
+without excluding tools.
 
-The Crop tool (`tool-crop`) opens `Views/CropOverlayWindow` instead of running a job: the files one after another,
+## Crop overlay and PDF page editor
+
+The image Crop tool (`tool-crop`) and PDF Crop (`tool-pdf-crop`) open `Views/CropOverlayWindow` instead of running a job:
+the files one after another,
 each cropped by hand and saved by `CropService` (the preset's output rule, the source's quality kept, animated or
-multi-frame pictures refused, the EXIF thumbnail dropped), one history entry for the run.
+multi-frame pictures refused, the EXIF thumbnail dropped), one history entry for the run. A PDF preview is rendered
+with PDFium and the chosen rectangle changes every page's crop box in a copied document opened in modify mode, so
+text, vectors, outlines, forms, page labels and document information remain PDF objects and stay attached.
 
 - `CropOverlayViewModel` walks the queue (Enter saves and opens the next file, Skip, Esc closes), keeps a
   `CropQueueItem` per file for the strip of thumbnails (waiting, current, done, skipped, failed; a thumbnail is a
@@ -166,6 +174,14 @@ multi-frame pictures refused, the EXIF thumbnail dropped), one history entry for
 - `Controls/CropMath` holds the arithmetic (ratios and their portrait forms, nudging by whole pixels, the frame in
   pixels, where the size chip goes, where the dial opens) and is unit tested.
 
+`tool-pdf-pages` opens `Views/PdfPageEditorWindow`: it previews, reorders, rotates, deletes, adds and extracts pages.
+Each source PDF's bytes and page sizes are cached once after the window has appeared; thumbnails and the large preview
+render off the UI thread. A whole-document edit keeps the original catalogue and changes `/Rotate` in modify mode.
+An actual reorder, deletion, addition or extraction builds a new PDF from selected page objects. A PDF that opens
+without a password but requires an owner password for modify mode uses the same page-copy fallback as compression;
+its outlines and form fields are not preserved by that fallback. Generated copies are writable even when the source
+has the read-only attribute; the source's bytes and attributes are left alone.
+
 ## Clip window
 
 The Cut a clip tool (`tool-clip`, first on the back of the video donut) opens `Views/ClipWindow` instead of running a

@@ -9,7 +9,7 @@ Filee chooses engines automatically. Settings → *Engines* shows their status,
 | Windows Imaging Component | part of Windows (Windows only) | **JPEG XR** (JXR, WDP, HDP; HDR screenshots of Windows) → the images ImageMagick writes, and PDF, ICNS, HEIC and SVG through PNG; HDR tone-mapped to SDR |
 | Vector graphics | built in (Svg.Skia, SkiaSharp, ACadSharp) | **SVG/SVGZ → PDF (vector) and images**, SVG ↔ SVGZ, **SVG → DXF** (→ DWG with the CAD engine), **raster images → SVG (tracing)**, PDF-compatible AI → PDF, **HP-GL / HP-GL/2 plot files (PLT) → SVG**, PDF and images (pen moves, packed PE polylines, arcs and filled polygons; text labels are not drawn), **Tajima DST embroidery → SVG** (stitches as lines, a palette colour per thread; → PNG, JPG, PDF from there) |
 | ICNS | built in | images → ICNS (16–1024 px), ICNS → images |
-| PDFsharp | built in (library) | images → PDF, merge, split, page ranges, spreadsheet print-studio assembly, **compression** (smaller PDFs, see below), PDFs without their metadata |
+| PDFsharp | built in (library) | images → PDF, merge, split, page ranges, page organising, lossless rotate and crop-box edits, spreadsheet print-studio assembly, **compression** (smaller PDFs, see below), PDFs without their metadata |
 | PDFium | built in (library) | PDF → images (multi-page TIFF/GIF supported) |
 | Unhwp | built in (library) | HWP/HWPX → TXT, Markdown, HTML (pictures in a `<name>_files` folder next to the Markdown, embedded in the HTML) |
 | Text & Markdown (Markdig) | built in (library) | **Markdown → HTML, TXT**; **TXT, LOG, PY, PAC, BAT, COMMAND, LUA, CSS, PS1 → UTF-8 TXT**, preserving source text without running scripts (and → PDF / DOCX through the HWPX writer, rhwp or LibreOffice) |

@@ -284,6 +284,25 @@
   "preset.merge_pdf": "دمج PDF",
   "merge.order_title": "اختيار ترتيب الدمج",
   "merge.order_hint": "حدّد ملفًا وانقله إلى أعلى أو أسفل. تُدمج الملفات بالترتيب من الأعلى إلى الأسفل. (‎Alt+↑ / Alt+↓‎)",
+  "preset.group_pdf_edit": "تحرير",
+  "preset.pdf_crop": "اقتصاص PDF",
+  "preset.pdf_crop.short": "اقتصاص",
+  "preset.pdf_pages": "ترتيب / حذف الصفحات",
+  "preset.pdf_pages.short": "الصفحات",
+  "preset.pdf_add": "إضافة صفحات",
+  "preset.pdf_add.short": "إضافة",
+  "preset.pdf_extract": "استخراج صفحة",
+  "preset.pdf_extract.short": "استخراج",
+  "preset.split_pdf.short": "تقسيم",
+  "pdf_editor.title": "تحرير صفحات PDF",
+  "pdf_editor.hint": "أعد ترتيب الصفحات أو أدرها أو احذفها. أضف صفحات من PDF آخر أو استخرج الصفحة المحددة.",
+  "pdf_editor.add": "إضافة PDF",
+  "pdf_editor.delete": "حذف",
+  "pdf_editor.page": "الصفحة {0}",
+  "pdf_editor.rotation": "تدوير {0}°",
+  "pdf_editor.loading": "جارٍ تحميل الصفحات…",
+  "pdf_editor.saving": "جارٍ حفظ PDF…",
+  "pdf_editor.saved": "تم الحفظ: {0}",
   "preset.split_pdf": "تقسيم PDF",
   "preset.compress_pdf": "ضغط PDF",
   "preset.searchable_pdf": "PDF قابل للبحث",

@@ -294,6 +294,25 @@
   "preset.merge_pdf": "Merge PDF",
   "merge.order_title": "Choose merge order",
   "merge.order_hint": "Select a file and move it up or down. Files are merged from top to bottom. (Alt+↑ / Alt+↓)",
+  "preset.group_pdf_edit": "Edit",
+  "preset.pdf_crop": "Crop PDF",
+  "preset.pdf_crop.short": "Crop",
+  "preset.pdf_pages": "Reorder / delete pages",
+  "preset.pdf_pages.short": "Pages",
+  "preset.pdf_add": "Add pages",
+  "preset.pdf_add.short": "Add",
+  "preset.pdf_extract": "Extract page",
+  "preset.pdf_extract.short": "Extract",
+  "preset.split_pdf.short": "Split",
+  "pdf_editor.title": "Edit PDF pages",
+  "pdf_editor.hint": "Reorder, rotate or delete pages. Add pages from another PDF, or extract the selected page as its own file.",
+  "pdf_editor.add": "Add PDF",
+  "pdf_editor.delete": "Delete",
+  "pdf_editor.page": "Page {0}",
+  "pdf_editor.rotation": "Rotated {0}°",
+  "pdf_editor.loading": "Loading pages…",
+  "pdf_editor.saving": "Saving PDF…",
+  "pdf_editor.saved": "Saved {0}",
   "preset.split_pdf": "Split PDF",
   "preset.compress_pdf": "Compress PDF",
   "preset.searchable_pdf": "Searchable PDF",

@@ -284,6 +284,25 @@
   "preset.merge_pdf": "Combinar PDF",
   "merge.order_title": "Elegir el orden de combinación",
   "merge.order_hint": "Selecciona un archivo y muévelo arriba o abajo. Los archivos se combinan de arriba abajo. (Alt+↑ / Alt+↓)",
+  "preset.group_pdf_edit": "Editar",
+  "preset.pdf_crop": "Recortar PDF",
+  "preset.pdf_crop.short": "Recortar",
+  "preset.pdf_pages": "Reordenar / eliminar páginas",
+  "preset.pdf_pages.short": "Páginas",
+  "preset.pdf_add": "Añadir páginas",
+  "preset.pdf_add.short": "Añadir",
+  "preset.pdf_extract": "Extraer página",
+  "preset.pdf_extract.short": "Extraer",
+  "preset.split_pdf.short": "Dividir",
+  "pdf_editor.title": "Editar páginas PDF",
+  "pdf_editor.hint": "Reordena, gira o elimina páginas. Añade páginas de otro PDF o extrae la seleccionada como archivo independiente.",
+  "pdf_editor.add": "Añadir PDF",
+  "pdf_editor.delete": "Eliminar",
+  "pdf_editor.page": "Página {0}",
+  "pdf_editor.rotation": "Girada {0}°",
+  "pdf_editor.loading": "Cargando páginas…",
+  "pdf_editor.saving": "Guardando PDF…",
+  "pdf_editor.saved": "Guardado: {0}",
   "preset.split_pdf": "Dividir PDF",
   "preset.compress_pdf": "Comprimir PDF",
   "preset.searchable_pdf": "PDF con búsqueda",

@@ -294,6 +294,25 @@
   "preset.merge_pdf": "Fusionner les PDF",
   "merge.order_title": "Choisir l'ordre de fusion",
   "merge.order_hint": "Sélectionnez un fichier et déplacez-le vers le haut ou le bas. Les fichiers sont fusionnés de haut en bas. (Alt+↑ / Alt+↓)",
+  "preset.group_pdf_edit": "Modifier",
+  "preset.pdf_crop": "Rogner le PDF",
+  "preset.pdf_crop.short": "Rogner",
+  "preset.pdf_pages": "Réorganiser / supprimer",
+  "preset.pdf_pages.short": "Pages",
+  "preset.pdf_add": "Ajouter des pages",
+  "preset.pdf_add.short": "Ajouter",
+  "preset.pdf_extract": "Extraire la page",
+  "preset.pdf_extract.short": "Extraire",
+  "preset.split_pdf.short": "Scinder",
+  "pdf_editor.title": "Modifier les pages PDF",
+  "pdf_editor.hint": "Réorganisez, faites pivoter ou supprimez des pages. Ajoutez des pages d’un autre PDF ou extrayez la page sélectionnée.",
+  "pdf_editor.add": "Ajouter un PDF",
+  "pdf_editor.delete": "Supprimer",
+  "pdf_editor.page": "Page {0}",
+  "pdf_editor.rotation": "Rotation {0}°",
+  "pdf_editor.loading": "Chargement des pages…",
+  "pdf_editor.saving": "Enregistrement du PDF…",
+  "pdf_editor.saved": "Enregistré : {0}",
   "preset.split_pdf": "Diviser le PDF",
   "preset.compress_pdf": "Compresser le PDF",
   "preset.searchable_pdf": "PDF consultable",

@@ -284,6 +284,25 @@
   "preset.merge_pdf": "PDF मर्ज करें",
   "merge.order_title": "मर्ज करने का क्रम चुनें",
   "merge.order_hint": "फ़ाइल चुनकर उसे ऊपर या नीचे ले जाएँ। फ़ाइलें ऊपर से नीचे के क्रम में मर्ज होंगी। (Alt+↑ / Alt+↓)",
+  "preset.group_pdf_edit": "संपादित करें",
+  "preset.pdf_crop": "PDF क्रॉप करें",
+  "preset.pdf_crop.short": "क्रॉप",
+  "preset.pdf_pages": "पुनः क्रम / पृष्ठ हटाएँ",
+  "preset.pdf_pages.short": "पृष्ठ",
+  "preset.pdf_add": "पृष्ठ जोड़ें",
+  "preset.pdf_add.short": "जोड़ें",
+  "preset.pdf_extract": "पृष्ठ निकालें",
+  "preset.pdf_extract.short": "निकालें",
+  "preset.split_pdf.short": "विभाजित करें",
+  "pdf_editor.title": "PDF पृष्ठ संपादित करें",
+  "pdf_editor.hint": "पृष्ठों का क्रम बदलें, घुमाएँ या हटाएँ। दूसरे PDF से पृष्ठ जोड़ें या चुना हुआ पृष्ठ निकालें।",
+  "pdf_editor.add": "PDF जोड़ें",
+  "pdf_editor.delete": "हटाएँ",
+  "pdf_editor.page": "पृष्ठ {0}",
+  "pdf_editor.rotation": "{0}° घुमाया",
+  "pdf_editor.loading": "पृष्ठ लोड हो रहे हैं…",
+  "pdf_editor.saving": "PDF सहेजा जा रहा है…",
+  "pdf_editor.saved": "सहेजा गया: {0}",
   "preset.split_pdf": "PDF बाँटें",
   "preset.compress_pdf": "PDF कंप्रेस करें",
   "preset.searchable_pdf": "खोजने योग्य PDF",

@@ -284,6 +284,25 @@
   "preset.merge_pdf": "結合",
   "merge.order_title": "結合順序を選択",
   "merge.order_hint": "ファイルを選択して上下に移動します。上から順に結合されます。（Alt+↑ / Alt+↓）",
+  "preset.group_pdf_edit": "編集",
+  "preset.pdf_crop": "PDF をトリミング",
+  "preset.pdf_crop.short": "トリミング",
+  "preset.pdf_pages": "並べ替え / 削除",
+  "preset.pdf_pages.short": "ページ",
+  "preset.pdf_add": "ページを追加",
+  "preset.pdf_add.short": "追加",
+  "preset.pdf_extract": "ページを抽出",
+  "preset.pdf_extract.short": "抽出",
+  "preset.split_pdf.short": "分割",
+  "pdf_editor.title": "PDF ページを編集",
+  "pdf_editor.hint": "ページの並べ替え、回転、削除ができます。別の PDF から追加するか、選択したページを抽出できます。",
+  "pdf_editor.add": "PDF を追加",
+  "pdf_editor.delete": "削除",
+  "pdf_editor.page": "{0} ページ",
+  "pdf_editor.rotation": "{0}° 回転",
+  "pdf_editor.loading": "ページを読み込み中…",
+  "pdf_editor.saving": "PDF を保存中…",
+  "pdf_editor.saved": "保存しました: {0}",
   "preset.split_pdf": "分割",
   "preset.compress_pdf": "圧縮",
   "preset.searchable_pdf": "検索可能なPDF",

@@ -294,6 +294,25 @@
   "preset.merge_pdf": "PDF 병합",
   "merge.order_title": "병합 순서 선택",
   "merge.order_hint": "파일을 골라 위아래로 옮기세요. 위에서부터 순서대로 병합돼요. (Alt+↑ / Alt+↓)",
+  "preset.group_pdf_edit": "편집",
+  "preset.pdf_crop": "PDF 자르기",
+  "preset.pdf_crop.short": "자르기",
+  "preset.pdf_pages": "페이지 순서 / 삭제",
+  "preset.pdf_pages.short": "페이지",
+  "preset.pdf_add": "페이지 추가",
+  "preset.pdf_add.short": "추가",
+  "preset.pdf_extract": "페이지 추출",
+  "preset.pdf_extract.short": "추출",
+  "preset.split_pdf.short": "분할",
+  "pdf_editor.title": "PDF 페이지 편집",
+  "pdf_editor.hint": "페이지 순서를 바꾸거나 회전·삭제하세요. 다른 PDF에서 페이지를 추가하거나 선택한 페이지를 추출할 수 있어요.",
+  "pdf_editor.add": "PDF 추가",
+  "pdf_editor.delete": "삭제",
+  "pdf_editor.page": "{0}페이지",
+  "pdf_editor.rotation": "{0}° 회전",
+  "pdf_editor.loading": "페이지 불러오는 중…",
+  "pdf_editor.saving": "PDF 저장 중…",
+  "pdf_editor.saved": "저장됨: {0}",
   "preset.split_pdf": "PDF 분할",
   "preset.compress_pdf": "PDF 압축",
   "preset.searchable_pdf": "검색 가능한 PDF",

@@ -284,6 +284,25 @@
   "preset.merge_pdf": "PDF मर्ज गर्नुहोस्",
   "merge.order_title": "मर्ज क्रम मिलाउनुहोस्",
   "merge.order_hint": "फाइलहरूलाई इच्छित क्रममा मिलाउन तान्नुहोस् र छाड्नुहोस्",
+  "preset.group_pdf_edit": "सम्पादन",
+  "preset.pdf_crop": "PDF क्रप गर्नुहोस्",
+  "preset.pdf_crop.short": "क्रप",
+  "preset.pdf_pages": "पृष्ठहरू क्रम मिलाउनुहोस् / मेटाउनुहोस्",
+  "preset.pdf_pages.short": "पृष्ठहरू",
+  "preset.pdf_add": "पृष्ठहरू थप्नुहोस्",
+  "preset.pdf_add.short": "थप्नुहोस्",
+  "preset.pdf_extract": "पृष्ठ निकाल्नुहोस्",
+  "preset.pdf_extract.short": "निकाल्नुहोस्",
+  "preset.split_pdf.short": "विभाजन",
+  "pdf_editor.title": "PDF पृष्ठहरू सम्पादन गर्नुहोस्",
+  "pdf_editor.hint": "पृष्ठहरूको क्रम मिलाउनुहोस्, घुमाउनुहोस् वा मेटाउनुहोस्। अर्को PDF बाट पृष्ठहरू थप्नुहोस्, वा छानिएको पृष्ठलाई छुट्टै फाइलका रूपमा निकाल्नुहोस्।",
+  "pdf_editor.add": "PDF थप्नुहोस्",
+  "pdf_editor.delete": "मेटाउनुहोस्",
+  "pdf_editor.page": "पृष्ठ {0}",
+  "pdf_editor.rotation": "{0}° घुमाइयो",
+  "pdf_editor.loading": "पृष्ठहरू लोड हुँदैछन्…",
+  "pdf_editor.saving": "PDF सेभ हुँदैछ…",
+  "pdf_editor.saved": "सेभ भयो: {0}",
   "preset.split_pdf": "PDF विभाजन गर्नुहोस्",
   "preset.compress_pdf": "PDF कम्प्रेस गर्नुहोस्",
   "preset.searchable_pdf": "खोज्न मिल्ने PDF",

@@ -294,6 +294,25 @@
   "preset.merge_pdf": "Połącz PDF",
   "merge.order_title": "Wybierz kolejność scalania",
   "merge.order_hint": "Wybierz plik i przesuń go w górę lub w dół. Pliki są scalane od góry do dołu. (Alt+↑ / Alt+↓)",
+  "preset.group_pdf_edit": "Edytuj",
+  "preset.pdf_crop": "Przytnij PDF",
+  "preset.pdf_crop.short": "Przytnij",
+  "preset.pdf_pages": "Zmień kolejność / usuń",
+  "preset.pdf_pages.short": "Strony",
+  "preset.pdf_add": "Dodaj strony",
+  "preset.pdf_add.short": "Dodaj",
+  "preset.pdf_extract": "Wyodrębnij stronę",
+  "preset.pdf_extract.short": "Wyodrębnij",
+  "preset.split_pdf.short": "Podziel",
+  "pdf_editor.title": "Edytuj strony PDF",
+  "pdf_editor.hint": "Zmieniaj kolejność, obracaj lub usuwaj strony. Dodaj strony z innego PDF albo wyodrębnij wybraną stronę.",
+  "pdf_editor.add": "Dodaj PDF",
+  "pdf_editor.delete": "Usuń",
+  "pdf_editor.page": "Strona {0}",
+  "pdf_editor.rotation": "Obrót {0}°",
+  "pdf_editor.loading": "Wczytywanie stron…",
+  "pdf_editor.saving": "Zapisywanie PDF…",
+  "pdf_editor.saved": "Zapisano: {0}",
   "preset.split_pdf": "Podziel PDF",
   "preset.compress_pdf": "Kompresuj PDF",
   "preset.searchable_pdf": "Przeszukiwalny PDF",

@@ -294,6 +294,25 @@
   "preset.merge_pdf": "Mesclar PDF",
   "merge.order_title": "Escolha a ordem da mesclagem",
   "merge.order_hint": "Selecione um arquivo e mova para cima ou para baixo. Os arquivos são mesclados de cima para baixo. (Alt+↑ / Alt+↓)",
+  "preset.group_pdf_edit": "Editar",
+  "preset.pdf_crop": "Recortar PDF",
+  "preset.pdf_crop.short": "Recortar",
+  "preset.pdf_pages": "Reordenar / excluir páginas",
+  "preset.pdf_pages.short": "Páginas",
+  "preset.pdf_add": "Adicionar páginas",
+  "preset.pdf_add.short": "Adicionar",
+  "preset.pdf_extract": "Extrair página",
+  "preset.pdf_extract.short": "Extrair",
+  "preset.split_pdf.short": "Dividir",
+  "pdf_editor.title": "Editar páginas do PDF",
+  "pdf_editor.hint": "Reordene, gire ou exclua páginas. Adicione páginas de outro PDF ou extraia a página selecionada.",
+  "pdf_editor.add": "Adicionar PDF",
+  "pdf_editor.delete": "Excluir",
+  "pdf_editor.page": "Página {0}",
+  "pdf_editor.rotation": "Girada {0}°",
+  "pdf_editor.loading": "Carregando páginas…",
+  "pdf_editor.saving": "Salvando PDF…",
+  "pdf_editor.saved": "Salvo: {0}",
   "preset.split_pdf": "Dividir PDF",
   "preset.compress_pdf": "Comprimir PDF",
   "preset.searchable_pdf": "PDF pesquisável",