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BentoPDF covers every PDF workflow you might need across six tool categories. All tools run entirely in your browser using WebAssembly — your files never leave your device, and there are no file size limits, daily quotas, or watermarks.
Every tool is free. No account required, no uploads to a server, no processing limits of any kind.

Tool categories

Edit & Annotate

~20 tools — annotate, highlight, redact, fill forms, sign, watermark, crop, deskew, recolor, and more.

Convert to PDF

~30 tools — convert images, Office documents, e-books, text formats, emails, and more into PDF.

Convert from PDF

~17 tools — extract images, tables, text, and convert PDF pages to JPG, PNG, Word, Excel, Markdown, and more.

Organize & Manage

~25 tools — merge, split, reorder, rotate, add/delete pages, manage attachments, compare, and automate.

Optimize & Repair

~10 tools — compress, linearize, rasterize, deskew, fix page sizes, repair corrupted files, and archive to PDF/A.

Secure PDF

~8 tools — encrypt, decrypt, set permissions, digitally sign, validate signatures, sanitize, and redact.

All categories at a glance

CategoryToolsWhat you can do
Edit & Annotate~20Annotate, form fill, sign, watermark, crop, color adjustments
Convert to PDF~30Images, Office files, e-books, plain text, emails
Convert from PDF~17Images, Word, Excel, Markdown, text, OCR, AI-ready JSON
Organize & Manage~25Merge, split, rotate, reorder, attachments, compare, automate
Optimize & Repair~10Compress, linearize, rasterize, repair, PDF/A archiving
Secure PDF~8Encrypt, sign, validate, sanitize, redact, manage permissions

PDF Workflow Builder

The PDF Workflow Builder is a visual automation tool that lets you chain multiple PDF operations into a single pipeline. Connect nodes on a canvas — input, processing, and output — then run everything with one click. Example pipelines:
  • PDF Input → OCR → Extract Tables → Download as CSV
  • Word to PDF → Fix Page Size → Add Page Numbers → Watermark → Compress → Download
  • PDF Input → Repair → Flatten → Sanitize → PDF to PDF/A → Download
Workflows can be saved locally, exported as JSON, and imported across browsers and machines. See Organize & Manage for full details.

How tools run

All tools run entirely client-side using WebAssembly. The key WASM engines BentoPDF uses are:
EngineWhat it powers
PyMuPDF WASMCompression, PDF to text/Markdown/SVG/Word, image extraction, EPUB/MOBI/XPS conversion, deskew
Ghostscript WASMPDF/A conversion, font-to-outline
CoherentPDF (CPDF) WASMMerge, split by bookmarks, table of contents, PDF to/from JSON, attachments
Tesseract.jsOCR — multi-language text recognition in scanned PDFs
LibreOffice WASMOffice file conversion (Word, Excel, PowerPoint, ODT, and more)
Office file conversion (Word, Excel, PowerPoint, and related formats) uses LibreOffice WASM, which requires SharedArrayBuffer. This means the app must be served over HTTPS or http://localhost. Plain http:// on a LAN IP (e.g., http://192.168.x.x) will not work even with the correct COOP/COEP headers.

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