Watermark
Stamp text over your PDF in seconds. Choose typography, transparency and position.
Drop a PDF to watermark
or click to browse
How to use Watermark
- 1
Drop a PDF.
- 2
Type your watermark text, then pick font, opacity and position.
- 3
Click Add watermark and download.
Runs in your browser
This tool runs in your browser. Your files are processed locally and never leave your device.
Points required
Your first document is free. After that, each use requires 15 Processing Points. Processing Points are usage units used to access PDF Ninja Tools document-processing services.
See full pricing →Frequently asked questions
Can I use an image watermark?
Right now this tool stamps text watermarks. For image stamps, use Edit PDF and add an image overlay.
Is the watermark permanent?
Yes — it's baked into every page of the downloaded PDF.
Is the first use really free?
Yes. Every visitor gets one free document per tool. Signed-in accounts also get one free document, then each use requires Processing Points.