About & Credits

PDF Toolbox lets you merge, compress, rotate, split, reorder, watermark, add page numbers, convert images to PDF, export pages as images, run OCR, remove passwords, convert to grayscale, delete or extract pages, and flatten forms — all directly in your browser with no uploads, no tracking, and no servers.

Open-Source Libraries

pdf-lib

PDF creation & manipulation — used for merging, page numbers, watermarks, image-to-PDF, and reordering

MIT
PDF.js by Mozilla

PDF rendering in the browser — used for page thumbnails and the compress preview

Apache 2.0
Tesseract.js

Client-side OCR engine — used to extract text from scanned images entirely offline

Apache 2.0
Space Grotesk by Florian Karsten

Heading typeface used throughout the interface

SIL OFL 1.1
Inter by Rasmus Andersson

Body typeface used for labels, descriptions, and UI text

SIL OFL 1.1
Supabase

Open-source Firebase alternative — used for user authentication and premium account data

Apache 2.0
JSZip

Client-side ZIP file creation — used to bundle exported PDF page images into a single download

MIT

✓ All libraries are open source. Commercial use is fully permitted under each license.

Privacy

Your PDF files never leave your device. All PDF processing (merging, compressing, rotating, OCR, etc.) runs entirely in your browser — no file is ever uploaded to any server.

If you create an account, your email address is stored securely with Supabase solely to manage your login and premium status. If you accept cookies, Google AdSense may collect anonymised usage data for advertising purposes. You can decline cookies and use all PDF tools without an account — no data is collected.

License

This website is licensed under the MIT License. You may use, modify, and distribute it (including commercially) with attribution to the project and the open-source libraries listed above.