About

PDF tools that keep your files on your device

PDF Tool is a free collection of 41 PDF tools that run entirely in your web browser. You can merge, split, compress, convert, sign and redact PDFs without uploading them anywhere.

Who is behind PDF Tool

PDF Tool is built and run by Felix Stiffel, an independent software developer from Germany. It started from a simple annoyance: most online PDF tools want you to upload contracts, payslips or ID documents to their servers just to merge two pages.

How local processing works

When you open a tool, your browser loads the program code once, like any other web page. When you add a file, it is read and processed by this code on your own device, using open-source libraries such as pdf.js and pdf-lib and, for some tools, WebAssembly. The finished file is created in your browser and saved straight to your downloads.

Your files are never sent to a server, and nothing is stored after you close the tab. For most tasks this makes no difference in speed, and there is no upload limit set by a server, only the limits of your device.

What the site does load from the network

The pages and program code of this site, including the OCR model of the high-accuracy engine (about 13 MB, loaded once).
The fast OCR engine downloads its language data from a public CDN (jsDelivr).
Anonymous usage statistics, only if you accept them in the consent banner.

None of these requests contain your files or their contents.

Check it yourself

You do not have to take our word for it. Every browser can show you exactly what a page sends:

Open a tool, for example Merge PDF, and press F12 (or right-click and choose “Inspect”) to open the developer tools.
Switch to the “Network” tab and clear the list.
Add your files and run the tool. You will see no request that uploads your file – the result is created locally.

Contact

Questions, bugs or ideas for new tools? Write to info@pdf-tool-free.com. The full provider details are in the legal notice.