Free · Private · In your browser
Watermark PDF
Add a semi-transparent text watermark across every page.
Drop your files here, or click to browse
Processed on your device — nothing is uploaded
How your files are handled
We built these tools so you never have to wonder where your documents go. Here is exactly what happens when you use them.
- Your files are processed entirely in your browser using open-source libraries (pdf-lib, PDF.js, and others).
- Nothing is uploaded to our servers. We have no backend that receives, stores, or scans your documents.
- We cannot see, store, or access your files — not during processing, not after, not ever.
- Processing uses your device's memory and CPU. Large files may take longer, especially on phones and tablets.
- All tools are free with no paywall tricks, no hourly task limits, and no watermarks on your output files.
How it works
Three simple steps. Your files never leave your device, and the result downloads straight to your computer or phone.
Frequently asked questions
Common questions about privacy, pricing, and how these tools work.
More edit tools
Other free PDF utilities that work the same way — private, in-browser, no sign-up.