BentoPDF — The Complete Guide: Over 100 PDF Tools in the Browser Without Uploading Files
BentoPDF looks like yet another PDF tools website, but the difference is fundamental: processing happens in the browser, on the user’s own computer (WebAssembly), not on a server. You can process sensitive drawings and tender documents without them leaving your machine and without installing anything. It is open source under AGPL-3.0, and the site is funded by donations.
BentoPDF
BentoPDF
Over 100 PDF tools that all run inside the browser — files are never uploaded to a server. Open source, no sign-up, no limits.
Get it from the vendorWhat you get
- Merge and split — assemble and divide sets of drawings and reports.
- Pages — reorder, rotate and delete pages.
- Compress and convert — shrink files and convert between formats.
- Numbering and watermarks — page numbers and a watermark such as “draft” or “not for construction”.
- Password protection — lock a file before sending it.
Privacy and licence
The site is free for any use, with no sign-up and no file limits. Two exceptions to local processing: the timestamp tool contacts a TSA server, and processing modules are loaded from an external CDN. You can also self-host it on an internal server; a paid commercial licence is needed only if you build it into a closed-source proprietary product. Limitation: performance depends on your computer and browser, and very large files can be slow.
Related tools
For an office server with OCR and an API — Stirling-PDF. For page arranging in an open-source desktop program — PDF Arranger. For a Windows toolbox that works offline — PDF24.
Stirling-PDF
Stirling PDF Inc.
Open-source PDF toolkit with dozens of tools — OCR, compare, redact, convert — as a desktop app or a self-hosted server.
Get it from the vendor
PDF Arranger
PDF Arranger project
Merge, split, rotate, crop and reorder PDF pages by drag and drop — for assembling calc packages, submittals and drawing sets.
Get it from the vendor
PDF24 Creator / PDF24 Tools
Geek Software GmbH
Free PDF toolbox: an offline Windows program plus a browser version — merge, split, compress, OCR, convert and a PDF printer.
Get it from the vendor
PDFsam Basic
Sober Lemur
Split, merge, rotate and extract PDF pages — for drawing sets, specifications and submissions.
Get it from the vendorThe bottom line
The safe way to use online PDF tools: the convenience of a website, without handing your documents to any server.