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PDF Studio

Text watermark

Stamp text like CONFIDENTIAL or DRAFT across every page, with opacity, colour and a diagonal option.

  1. 1Add your PDF file
  2. 2Pick options
  3. 3Click Run
  4. 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”