work with documents.
Private files should stay private. Make the changes you need, then save a fresh searchable copy.
Edit PDFs now in your browser, or use the desktop app for offline OCR and larger workflows. Free, with no watermark or subscription.
Private files should stay private. Make the changes you need, then save a fresh searchable copy.
Every shipped PDF feature is available to every user. Advertising and disclosed affiliate sponsorship—not locked tools—support development.
Correct text, add notes, highlight details, whiteout content, and preview the finished result without a watermark.
Merge documents, split page ranges, rotate pages, remove what you do not need, and export a fresh copy.
Use bundled offline OCR to turn scans into focused TXT or structured Markdown without sending the document to an AI provider.
Convert images and PDF pages or shrink image-heavy documents using the desktop app and your own hardware.
Extract scanned PDFs locally into reusable text or Markdown, remove repeated page noise, and estimate document size before using the AI tool you prefer.
The Caffeinate is moving to a public-source, ad-supported model so useful PDF tools remain accessible without subscriptions.
No watermark
For the next PyMuPDF build
Clearly labeled
The desktop app processes documents on your computer. The web editor runs MuPDF inside your browser tab. Neither mode sends your selected PDF to The Caffeinate.
Desktop stays localPDFs, OCR, edits, and exports remain on your computer.
Web stays in your browserThe web editor processes PDFs in this browser tab without uploading them to us.
No document targetingAds never receive filenames, extracted text, page images, or editing history.
Open-source directionThe next PyMuPDF build ships under GNU AGPL v3 with corresponding source.
Choose a PDF from your computer.
Correct text and organize pages.
Review the finished document.
Export a fresh searchable copy.
PDF is the first utility in a family of focused free tools designed to respect your files and attention.
Edit locally in your browser—no upload required.
Offline OCR and deeper document workflows.
Resize, convert, compress, and clean up images locally.
The current Windows beta is free. The new PyMuPDF-powered AGPL build will replace it after source publication and release verification.
By downloading, you agree to the beta terms. Need help? hello@thecaffeinate.com