KnifeLemon · Oct 23, 2026 · Oct 22, 2026 · Oct 22, 2026 · Oct 22, 2026 · Oct 22, 2026
@@ -164,6 +164,25 @@ 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.
 
+## Spreadsheet print studio
+
+The `tool-sheet-studio` tool opens an independent `Views/SpreadsheetPrintStudioWindow` for each dropped XLSX workbook
+instead of starting a normal conversion job. `SpreadsheetPrintStudioViewModel` owns an ordered, non-destructive print plan: each visible
+sheet starts as one region and the user can add more regions, change paper, orientation, scale, margins, page order,
+hidden rows and manual breaks, then see the PDF that those settings will produce.
+
+- `SpreadsheetPrintInspector` reads workbook metadata and streams the large worksheet data with `XmlReader`; opening
+  a large workbook neither builds nor retains an `XDocument` for every sheet.
+- `SpreadsheetPrintPackage` makes a disposable XLSX under `JobQueue.DefaultWorkRoot`. It keeps every worksheet and
+  named range so cross-sheet formulas remain valid, hides the sheets not being rendered, and changes only the chosen
+  sheet's print settings. A new print area is written only after the user explicitly changes or accepts the range.
+- `SpreadsheetPrintService` runs LibreOffice once for each region. Preview and export use the same disposable-workbook
+  path; export then joins the region PDFs in the chosen order with PDFsharp. The ordinary XLSX → PDF donut conversion
+  can still differ because route planning may select Filee's built-in spreadsheet reader instead of LibreOffice.
+- `PdfPreviewDocument` caches a PDF's bytes and page geometry. The studio asks PDFium/PDFtoImage for small thumbnails
+  and only one large selected page, all decoded away from the UI thread; exporting never performs preview rendering.
+  Cancellation closes LibreOffice and the temporary job folder is removed on success, error or window close.
+
 ## Settings and data
 
 `UserDataStore` owns `settings.json`, `presets.json`, `profiles.json` and `history.json`

@@ -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, **compression** (smaller PDFs, see below), PDFs without their metadata |
+| PDFsharp | built in (library) | images → PDF, merge, split, page ranges, 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) |
@@ -426,6 +426,13 @@ the text the spreadsheet shows, the value behind it and its Excel number format.
 - Not converted: formulas (their cached results are kept), charts, pictures, comments, conditional formatting,
   data validation, print areas and page breaks.
 
+The XLSX donut also offers **PDF + Edit** (`tool-sheet-studio`). Unlike an ordinary routed XLSX → PDF conversion,
+this interactive tool always requires LibreOffice regardless of engine priority: it preserves the original workbook,
+makes one disposable copy per selected sheet region, applies that region's print settings, and asks LibreOffice to
+render it. PDFsharp combines the resulting PDFs. The live preview follows this exact studio export path and uses
+PDFium/PDFtoImage for lazy thumbnails and the selected large page; the ordinary donut's PDF can differ because its
+built-in XLSX route reads the workbook into Filee's document model.
+
 ## Fonts
 
 Fonts are converted in-process (`Filee.Engines/Fonts`); zlib and Brotli come with .NET. The input format is

@@ -933,6 +933,46 @@
   "watch.status_starting": "جارٍ البدء…",
   "watch.status_error": "تعذّرت مراقبة هذا المجلد: {0}",
   "watch.cli_hint": "متاح أيضًا من سطر الأوامر: filee watch <folder> --to <format>",
+  "preset.sheet_studio": "PDF + تحرير",
+  "sheet_studio.title": "استوديو طباعة جداول البيانات",
+  "sheet_studio.sheets": "الأوراق وترتيب الإخراج",
+  "sheet_studio.page_setup": "إعداد الصفحة",
+  "sheet_studio.print_area": "نطاق الطباعة",
+  "sheet_studio.use_content": "استخدام المحتوى",
+  "sheet_studio.paper": "الورق",
+  "sheet_studio.orientation": "الاتجاه",
+  "sheet_studio.scaling": "التحجيم",
+  "sheet_studio.percent": "النسبة المئوية",
+  "sheet_studio.pages_wide": "عدد الصفحات عرضًا",
+  "sheet_studio.pages_tall": "عدد الصفحات طولًا (0 = تلقائي)",
+  "sheet_studio.margins": "الهوامش",
+  "sheet_studio.margin_top": "أعلى",
+  "sheet_studio.margin_bottom": "أسفل",
+  "sheet_studio.margin_left": "يسار",
+  "sheet_studio.margin_right": "يمين",
+  "sheet_studio.page_order": "ترتيب الصفحات",
+  "sheet_studio.include_hidden": "تضمين الصفوف والأعمدة المخفية",
+  "sheet_studio.keep_breaks": "الاحتفاظ بفواصل الصفحات اليدوية",
+  "sheet_studio.reset_sheet": "إعادة ضبط هذه الورقة",
+  "sheet_studio.rendering": "جارٍ إنشاء معاينة PDF مطابقة…",
+  "sheet_studio.export_pdf": "تصدير PDF",
+  "sheet_studio.invalid_range": "أدخل نطاقًا صالحًا، مثل A1:S52.",
+  "sheet_studio.exporting": "جارٍ إنشاء الأوراق ودمجها…",
+  "sheet_studio.exported": "تم تصدير {0}",
+  "sheet_studio.page_count": "{0} صفحة · المعاينة مطابقة للتصدير",
+  "sheet_studio.from_workbook": "من المصنف",
+  "sheet_studio.portrait": "عمودي",
+  "sheet_studio.landscape": "أفقي",
+  "sheet_studio.fit_pages": "ملاءمة للصفحات",
+  "sheet_studio.exact_scale": "مقياس دقيق",
+  "sheet_studio.down_over": "إلى الأسفل ثم إلى اليمين",
+  "sheet_studio.over_down": "إلى اليمين ثم إلى الأسفل",
+  "sheet_studio.warning_scale": "يطلب المصنف مقياسًا قدره {0}% فقط، مما يجعل الجدول صغيرًا جدًا غالبًا.",
+  "sheet_studio.warning_wide": "المحتوى عريض جدًا ولا يملك نطاق طباعة. استخدم المحتوى ثم اختر عدد الصفحات عرضًا.",
+  "sheet_studio.apply_fix": "تطبيق التخطيط المقترح",
+  "sheet_studio.add_region": "+ إضافة نطاق آخر",
+  "sheet_studio.region_name": "{0} · النطاق {1}",
+
   "whats_new.title": "الجديد في Filee {0}",
   "whats_new.previous": "السابق",
   "whats_new.next": "التالي",

@@ -954,6 +954,46 @@
   "watch.status_error": "Can't watch this folder: {0}",
   "watch.cli_hint": "Also on the command line: filee watch <folder> --to <format>",
 
+  "preset.sheet_studio": "PDF + Edit",
+  "sheet_studio.title": "Spreadsheet Print Studio",
+  "sheet_studio.sheets": "Sheets and output order",
+  "sheet_studio.page_setup": "Page setup",
+  "sheet_studio.print_area": "Print area",
+  "sheet_studio.use_content": "Use content",
+  "sheet_studio.paper": "Paper",
+  "sheet_studio.orientation": "Orientation",
+  "sheet_studio.scaling": "Scaling",
+  "sheet_studio.percent": "Percent",
+  "sheet_studio.pages_wide": "Pages wide",
+  "sheet_studio.pages_tall": "Pages tall (0 = auto)",
+  "sheet_studio.margins": "Margins (top, bottom, left, right)",
+  "sheet_studio.margin_top": "Top",
+  "sheet_studio.margin_bottom": "Bottom",
+  "sheet_studio.margin_left": "Left",
+  "sheet_studio.margin_right": "Right",
+  "sheet_studio.page_order": "Page order",
+  "sheet_studio.include_hidden": "Include hidden rows and columns",
+  "sheet_studio.keep_breaks": "Keep manual page breaks",
+  "sheet_studio.reset_sheet": "Reset this sheet",
+  "sheet_studio.rendering": "Rendering the exact PDF preview…",
+  "sheet_studio.export_pdf": "Export PDF",
+  "sheet_studio.invalid_range": "Enter a valid range, for example A1:S52.",
+  "sheet_studio.exporting": "Rendering and combining sheets…",
+  "sheet_studio.exported": "Exported {0}",
+  "sheet_studio.page_count": "{0} page(s) · preview matches export",
+  "sheet_studio.from_workbook": "From workbook",
+  "sheet_studio.portrait": "Portrait",
+  "sheet_studio.landscape": "Landscape",
+  "sheet_studio.fit_pages": "Fit to pages",
+  "sheet_studio.exact_scale": "Exact scale",
+  "sheet_studio.down_over": "Down, then over",
+  "sheet_studio.over_down": "Over, then down",
+  "sheet_studio.warning_scale": "The workbook requests only {0}% scale. This often makes the table tiny.",
+  "sheet_studio.warning_wide": "Very wide content has no print area. Use Content, then choose how many pages wide it should be.",
+  "sheet_studio.apply_fix": "Apply suggested layout",
+  "sheet_studio.add_region": "+ Add another region",
+  "sheet_studio.region_name": "{0} · region {1}",
+
   "whats_new.title": "What's new in Filee {0}",
   "whats_new.previous": "Previous",
   "whats_new.next": "Next",

@@ -934,6 +934,46 @@
   "watch.status_error": "No se puede supervisar esta carpeta: {0}",
   "watch.cli_hint": "También en la línea de comandos: filee watch <carpeta> --to <formato>",
 
+  "preset.sheet_studio": "PDF + Editar",
+  "sheet_studio.title": "Estudio de impresión de hojas de cálculo",
+  "sheet_studio.sheets": "Hojas y orden de salida",
+  "sheet_studio.page_setup": "Configuración de página",
+  "sheet_studio.print_area": "Área de impresión",
+  "sheet_studio.use_content": "Usar contenido",
+  "sheet_studio.paper": "Papel",
+  "sheet_studio.orientation": "Orientación",
+  "sheet_studio.scaling": "Escala",
+  "sheet_studio.percent": "Porcentaje",
+  "sheet_studio.pages_wide": "Páginas de ancho",
+  "sheet_studio.pages_tall": "Páginas de alto (0 = automático)",
+  "sheet_studio.margins": "Márgenes",
+  "sheet_studio.margin_top": "Superior",
+  "sheet_studio.margin_bottom": "Inferior",
+  "sheet_studio.margin_left": "Izquierdo",
+  "sheet_studio.margin_right": "Derecho",
+  "sheet_studio.page_order": "Orden de páginas",
+  "sheet_studio.include_hidden": "Incluir filas y columnas ocultas",
+  "sheet_studio.keep_breaks": "Conservar saltos de página manuales",
+  "sheet_studio.reset_sheet": "Restablecer esta hoja",
+  "sheet_studio.rendering": "Generando la vista previa exacta del PDF…",
+  "sheet_studio.export_pdf": "Exportar PDF",
+  "sheet_studio.invalid_range": "Introduce un rango válido, por ejemplo A1:S52.",
+  "sheet_studio.exporting": "Generando y combinando hojas…",
+  "sheet_studio.exported": "Exportado: {0}",
+  "sheet_studio.page_count": "{0} página(s) · la vista previa coincide con la exportación",
+  "sheet_studio.from_workbook": "Del libro",
+  "sheet_studio.portrait": "Vertical",
+  "sheet_studio.landscape": "Horizontal",
+  "sheet_studio.fit_pages": "Ajustar a páginas",
+  "sheet_studio.exact_scale": "Escala exacta",
+  "sheet_studio.down_over": "Abajo y luego a la derecha",
+  "sheet_studio.over_down": "A la derecha y luego abajo",
+  "sheet_studio.warning_scale": "El libro solicita solo un {0}% de escala. Esto suele hacer que la tabla sea diminuta.",
+  "sheet_studio.warning_wide": "El contenido es muy ancho y no tiene área de impresión. Usa el contenido y elige cuántas páginas de ancho debe ocupar.",
+  "sheet_studio.apply_fix": "Aplicar diseño sugerido",
+  "sheet_studio.add_region": "+ Añadir otra área",
+  "sheet_studio.region_name": "{0} · área {1}",
+
   "whats_new.title": "Novedades de Filee {0}",
   "whats_new.previous": "Anterior",
   "whats_new.next": "Siguiente",

@@ -954,6 +954,46 @@
   "watch.status_error": "Impossible de surveiller ce dossier : {0}",
   "watch.cli_hint": "Aussi en ligne de commande : filee watch <folder> --to <format>",
 
+  "preset.sheet_studio": "PDF + Modifier",
+  "sheet_studio.title": "Atelier d’impression des feuilles de calcul",
+  "sheet_studio.sheets": "Feuilles et ordre de sortie",
+  "sheet_studio.page_setup": "Mise en page",
+  "sheet_studio.print_area": "Zone d’impression",
+  "sheet_studio.use_content": "Utiliser le contenu",
+  "sheet_studio.paper": "Papier",
+  "sheet_studio.orientation": "Orientation",
+  "sheet_studio.scaling": "Échelle",
+  "sheet_studio.percent": "Pourcentage",
+  "sheet_studio.pages_wide": "Pages en largeur",
+  "sheet_studio.pages_tall": "Pages en hauteur (0 = auto)",
+  "sheet_studio.margins": "Marges",
+  "sheet_studio.margin_top": "Haut",
+  "sheet_studio.margin_bottom": "Bas",
+  "sheet_studio.margin_left": "Gauche",
+  "sheet_studio.margin_right": "Droite",
+  "sheet_studio.page_order": "Ordre des pages",
+  "sheet_studio.include_hidden": "Inclure les lignes et colonnes masquées",
+  "sheet_studio.keep_breaks": "Conserver les sauts de page manuels",
+  "sheet_studio.reset_sheet": "Réinitialiser cette feuille",
+  "sheet_studio.rendering": "Création de l’aperçu PDF exact…",
+  "sheet_studio.export_pdf": "Exporter le PDF",
+  "sheet_studio.invalid_range": "Saisissez une plage valide, par exemple A1:S52.",
+  "sheet_studio.exporting": "Création et assemblage des feuilles…",
+  "sheet_studio.exported": "Exporté : {0}",
+  "sheet_studio.page_count": "{0} page(s) · l’aperçu correspond à l’export",
+  "sheet_studio.from_workbook": "Selon le classeur",
+  "sheet_studio.portrait": "Portrait",
+  "sheet_studio.landscape": "Paysage",
+  "sheet_studio.fit_pages": "Ajuster aux pages",
+  "sheet_studio.exact_scale": "Échelle exacte",
+  "sheet_studio.down_over": "Vers le bas, puis à droite",
+  "sheet_studio.over_down": "À droite, puis vers le bas",
+  "sheet_studio.warning_scale": "Le classeur demande une échelle de seulement {0} %. Le tableau devient souvent minuscule.",
+  "sheet_studio.warning_wide": "Le contenu est très large et n’a pas de zone d’impression. Utilisez le contenu, puis choisissez le nombre de pages en largeur.",
+  "sheet_studio.apply_fix": "Appliquer la mise en page suggérée",
+  "sheet_studio.add_region": "+ Ajouter une autre zone",
+  "sheet_studio.region_name": "{0} · zone {1}",
+
   "whats_new.title": "Nouveautés de Filee {0}",
   "whats_new.previous": "Précédent",
   "whats_new.next": "Suivant",

@@ -934,6 +934,46 @@
   "watch.status_error": "इस फ़ोल्डर को नहीं देखा जा सकता: {0}",
   "watch.cli_hint": "कमांड लाइन पर भी: filee watch <folder> --to <format>",
 
+  "preset.sheet_studio": "PDF + संपादित करें",
+  "sheet_studio.title": "स्प्रेडशीट प्रिंट स्टूडियो",
+  "sheet_studio.sheets": "शीट और आउटपुट क्रम",
+  "sheet_studio.page_setup": "पेज सेटअप",
+  "sheet_studio.print_area": "प्रिंट क्षेत्र",
+  "sheet_studio.use_content": "सामग्री का उपयोग करें",
+  "sheet_studio.paper": "काग़ज़",
+  "sheet_studio.orientation": "दिशा",
+  "sheet_studio.scaling": "स्केलिंग",
+  "sheet_studio.percent": "प्रतिशत",
+  "sheet_studio.pages_wide": "चौड़ाई में पेज",
+  "sheet_studio.pages_tall": "ऊँचाई में पेज (0 = स्वतः)",
+  "sheet_studio.margins": "मार्जिन",
+  "sheet_studio.margin_top": "ऊपर",
+  "sheet_studio.margin_bottom": "नीचे",
+  "sheet_studio.margin_left": "बायाँ",
+  "sheet_studio.margin_right": "दायाँ",
+  "sheet_studio.page_order": "पेज क्रम",
+  "sheet_studio.include_hidden": "छिपी पंक्तियाँ और कॉलम शामिल करें",
+  "sheet_studio.keep_breaks": "मैन्युअल पेज ब्रेक रखें",
+  "sheet_studio.reset_sheet": "यह शीट रीसेट करें",
+  "sheet_studio.rendering": "सटीक PDF पूर्वावलोकन बनाया जा रहा है…",
+  "sheet_studio.export_pdf": "PDF निर्यात करें",
+  "sheet_studio.invalid_range": "मान्य क्षेत्र दर्ज करें, जैसे A1:S52।",
+  "sheet_studio.exporting": "शीट बनाकर जोड़ी जा रही हैं…",
+  "sheet_studio.exported": "{0} निर्यात किया गया",
+  "sheet_studio.page_count": "{0} पेज · पूर्वावलोकन निर्यात से मेल खाता है",
+  "sheet_studio.from_workbook": "वर्कबुक से",
+  "sheet_studio.portrait": "पोर्ट्रेट",
+  "sheet_studio.landscape": "लैंडस्केप",
+  "sheet_studio.fit_pages": "पेजों में फ़िट करें",
+  "sheet_studio.exact_scale": "सटीक स्केल",
+  "sheet_studio.down_over": "नीचे, फिर दाएँ",
+  "sheet_studio.over_down": "दाएँ, फिर नीचे",
+  "sheet_studio.warning_scale": "वर्कबुक केवल {0}% स्केल माँगती है। इससे तालिका अक्सर बहुत छोटी हो जाती है।",
+  "sheet_studio.warning_wide": "बहुत चौड़ी सामग्री का कोई प्रिंट क्षेत्र नहीं है। सामग्री चुनें और चौड़ाई में पेजों की संख्या तय करें।",
+  "sheet_studio.apply_fix": "सुझाया गया लेआउट लागू करें",
+  "sheet_studio.add_region": "+ दूसरा क्षेत्र जोड़ें",
+  "sheet_studio.region_name": "{0} · क्षेत्र {1}",
+
   "whats_new.title": "Filee {0} में नया क्या है",
   "whats_new.previous": "पिछला",
   "whats_new.next": "अगला",