FileStripe

Add a Watermark to a PDF

Stamp CONFIDENTIAL, DRAFT or your name across every page with custom opacity and angle.

Free to use · No account needed · Files are processed on your device and never uploaded

About the Watermark PDF

Mark drafts, confidential documents and copies clearly. The watermark is drawn on every page as real PDF text, centred and rotated, or tiled.

How to add a watermark to a PDF

  1. Choose a PDF.
  2. Enter text and style.
  3. Download.

Features

  • Diagonal or tiledClassic stamp or full coverage.
  • OpacityKeep content readable.
  • ColoursAny colour.
  • PrivateNo upload.

Frequently asked questions

Is the Watermark PDF free?

Yes. The Watermark PDF is completely free with no sign-up, no watermarks, no daily limits and no premium tier.

Are my files uploaded to a server?

No. FileStripe processes your files locally in your web browser using JavaScript. Nothing is uploaded, so the Watermark PDF is safe for private photos and confidential documents and even works offline once the page has loaded.

Does it work on iPhone and Android?

Yes. The Watermark PDF works in Safari, Chrome, Firefox, Edge and Samsung Internet on phones, tablets and computers. On a phone you can pick files from your photo library or files app and share the result straight to another app.

Last updated · Processing happens locally in your browser.

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