Watermark PDF
Stamp text across every page of a PDF, with control over opacity, angle and size. It runs in your browser, so your file never leaves your device.
or drop a PDF file here
Add a PDF to start.
Your file stays on your device. Nothing is uploaded.
How to use it
- 1
Add your PDF
Choose or drop a PDF file.
- 2
Set the watermark
Type the text and adjust the opacity, angle and size.
- 3
Download
Press Add watermark and save the stamped file.
Questions about watermark pdf
Can I use an image watermark?
Not yet — this tool stamps text. Image watermarks are planned for later.
Will it cover the content?
Lower the opacity so the watermark shows through without hiding the text underneath.
Is my file uploaded?
No. The watermark is added in your browser.