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Watermark PDF

Stamp text like “Confidential” or “Draft” across every page of a PDF, and set the size, angle, colour and opacity — all in your browser, nothing uploaded.

This tool lets you add a watermark to a PDF, stamping text like Confidential or Draft across every page. Set the size, angle, colour and opacity in a live preview, from a faint tint to a bold stamp, then download. It is handy for marking a document as a draft or as confidential before you share it. Everything runs in your browser, so nothing is uploaded.

Read the guide: How to Add a Watermark to a PDF

Drop a PDF here

PDF files — processed privately on your device

How it works

  1. 1

    Add a PDF

    Drop in the PDF you want to mark.

  2. 2

    Set the watermark

    Type the text and adjust size, angle, colour and opacity in the live preview.

  3. 3

    Download

    The watermark is applied to every page. Nothing is uploaded.

Instant & 100% private — nothing is uploaded

Your PDFs are processed instantly on your own device and are never sent to a server — so there are no upload waits, no size limits from us, and no copies kept anywhere.

Frequently asked questions

How do I add a watermark to a PDF?
Type the text you want, set the size, angle, colour and opacity, then download. The watermark is drawn across every page of the file.
Can I make the watermark faint?
Yes. The opacity slider goes from a barely-there tint to a bold stamp, so you can keep the page readable underneath.
Can the watermark be removed later?
The text is merged into each page, so it is not a layer that toggles on and off. Keep your original file if you may need a clean copy.

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