PDF24 Tools
Free online PDF tools and a Windows desktop app for merging, splitting, compressing, converting and signing PDFs.
Our verdict
What it does well
- Free with no artificial limits, per the site, including the desktop app
- Covers merge, split, compress, convert, OCR, sign, redact and watermark
- Works in any browser, or offline with the Windows PDF24 Creator app
Where it falls short
- Funded by advertising, so the online tools show ads
- Online tools upload files to PDF24's servers (deleted after a short time)
- Desktop app is Windows only; Mac and Linux users rely on the browser tools
PDF24 Tools is a suite of PDF tools from Geek Software GmbH. The site lists merging, splitting, compressing, editing, signing and converting PDFs, plus OCR, watermarks, page numbers, page rotation and rearranging, comparing, redacting, and protecting or unlocking files. The online tools run in a browser with no installation, and a Chrome extension and an installable web app are also offered.
For offline use there is PDF24 Creator, a free Windows desktop program (Windows 10 and 11) that keeps files on your PC. Its page states that Linux and Mac are not currently supported.
The site describes the tools as free of charge and without artificial limits, paid for by advertising. The Creator page says it is free for private and commercial use.
PDF24 Tools compared
Alternatives to PDF24 Tools
Adobe's paid PDF tool for editing, OCR, signatures, conversion and redaction on desktop, web and mobile.
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Last updated 16 October 2026. Facts checked against the official site on 16 October 2026. How we make money