ToolBoxy
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Watermark PDF

watermark pdf · add watermark · pdf watermark · PDF watermark jp

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Drop a PDF or click to select

Diagonal watermark on every page · processed entirely in your browser.

How to use

  1. 1

    Upload a PDF.

  2. 2

    Type the watermark text.

  3. 3

    Download the watermarked PDF.

FAQ

Is this tool free?

Yes — no sign-up, no installation, completely free to use right away.

What is this tool?

This tool stamps a text watermark across every page of a PDF. Type a word like “Confidential” or “Draft” and it's added diagonally over each page before you download. It's a simple way to mark ownership or status on documents you share. The file is processed entirely in your browser and never uploaded.

Are my uploaded files sent to a server?

No. Everything runs only on your own computer, inside your browser, and your files are never sent to a server or anywhere else. So you can use it with complete peace of mind, without worrying about your file contents leaking.

Is the original PDF uploaded?

No - the watermark is applied in your browser; your file never leaves your device.