Watermark PDF

Stamp text or a logo over your PDF pages.

This tool runs entirely in your browser — no data is uploaded to our servers.

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Protect your files and digital products with a watermark showing your name, logo or words like “CONFIDENTIAL” or “SAMPLE”. Control position, rotation, transparency and size with a live preview.

How to use it

  1. Choose a PDF file.
  2. Type the text or upload a logo, and set size and color.
  3. Pick position, rotation, transparency and pages, then click “Add watermark”.

Features

  • Text in any language, including properly shaped Arabic.
  • Transparent PNG logos or any image.
  • Tile mode to cover the whole page.
  • All pages or a specific range.

Privacy and security

“Watermark PDF” runs entirely in your browser using trusted open-source libraries. Your files are never uploaded to a server and no copy is kept, so your documents stay private. It is free and needs no sign-up.

Tip: For digital product samples, use tile mode at 15–25% transparency so the mark is hard to crop.

Frequently asked questions

Can I use my logo?

Yes — choose “Image” and upload it; transparent PNG works best.

Will it hide the text?

Adjust the transparency to keep pages readable.