Watermark PDF
Upload a PDF and add a diagonal, semi-transparent text watermark to every page. Processed in your browser; nothing is uploaded.
How to watermark pdf
- 1
Step 1
Upload your PDF.
- 2
Step 2
Type your watermark text.
- 3
Step 3
Click Add watermark and download.
Frequently asked questions
Can I control where the watermark appears?
It's centered diagonally across each page at a fixed opacity, which suits most uses like CONFIDENTIAL or DRAFT.
Are my files uploaded anywhere?
No. This tool runs entirely in your browser — your PDF never leaves your device and nothing is stored on a server.