Watermark PDF
Stamp DRAFT, CONFIDENTIAL or your name across every page, with the opacity you choose.
Runs on your device · nothing is uploaded
Drop a PDF here
or browse files
Free · Unlimited · Your file never leaves this device
How it works
- 01
Drop your PDF
- 02
Type your watermark
- 03
Download the stamped file
Questions, answered
Can someone remove the watermark?
It is drawn into the content of every page, so it shows in every reader and prints with the page. Someone with a full PDF editor could still delete it, so treat it as a clear label rather than a lock.
Are my files uploaded anywhere?
No. This tool runs entirely in your browser, so your file never leaves your device. You can even run it once, disconnect from the internet, and run it again: it still works, because the processing code is already on your device.