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Watermark PDF

Add a text watermark across every page of a PDF in your browser.

Free foreverRuns in your browserNo sign-up
Drop a PDF here, or click to choose
Your file is processed in your browser and never uploaded.

About the Watermark PDF

Add a text watermark to a PDF to mark it as confidential, draft or a copy. Type your text, choose the size, colour and opacity, and stamp it across every page.

The diagonal option places the watermark at 45 degrees across the middle of each page, which is the classic look for CONFIDENTIAL or DRAFT stamps.

Your PDF is processed entirely in your browser, so it is never uploaded to a server.

Key features

  • Watermark every page at once
  • Adjustable size, colour and opacity
  • Diagonal or horizontal placement
  • Private - runs in your browser

How to use

  1. 1Upload your PDF and type the watermark text.
  2. 2Set the size, colour, opacity and placement.
  3. 3Add the watermark and download the new PDF.

Frequently asked questions

Can I add an image watermark or logo?
This tool adds a text watermark. For a logo, add your text now, or place an image on the pages first using another editor.
Does it watermark every page?
Yes. The watermark is stamped on all pages of the PDF in one step.
Is my PDF uploaded?
No. The watermark is applied locally in your browser, so your document stays private.