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PDF tool

Watermark PDF

Add visible text across each PDF page in the browser and download the marked document.

Free browser tool

No Matrix computer needed

✓ No account or card

✓ Use the result right away

✓ Task-specific limits below

Workspace

Use watermark pdf

Result

Your processed result will be ready here. The files stay in this browser tab.

How to use it

Choose a PDF, type a short label, and apply the watermark to all pages.

What to check

A visible watermark does not prevent copying or editing the underlying content.

Review the result before using it in a published page, application, or agent configuration.

Quick answers

Frequently asked questions

Does a watermark stop someone editing the PDF?

No. It adds visible text to pages but does not enforce permissions or prevent a recipient from modifying the document.

Where does Matrix apply the watermark?

The chosen short text is stamped across every page in the downloaded copy. Check legibility over light and dark content.

Keep exploring

Related free tools

Add PDF Page NumbersEdit PDF MetadataAdd Text to PDF

Keep your tools and files together with Matrix

Utilities brings everyday text, file, and developer tools into Matrix. Some advanced browser tools remain on the website. The desktop client connects to your private Matrix cloud computer, which requires a paid plan.

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