PDF Studio
Text watermark
Stamp text like CONFIDENTIAL or DRAFT across every page, with opacity, colour and a diagonal option.
- 1Add your PDF file
- 2Pick options
- 3Click Run
- 4Download result
Limits
- Text watermarks only; image watermarks are not available yet. Latin characters only (standard font).
- The watermark is added on top of the page content and can be removed by anyone with a PDF editor. It is not a security feature.
- Password-protected PDFs are refused (there is no password prompt yet); remove the password first.
- PDFs over 2,000 pages are refused to keep your browser responsive.
Ask the AI chat
The AI chat can run this tool for you. Try:
- “add a CONFIDENTIAL watermark to this pdf”
- “watermark my pdf with the word DRAFT”
- “stamp this document as copy”