Tools › Watermark PDF

Watermark PDF

Stamp text like CONFIDENTIAL or DRAFT across every page — set the opacity, angle and colour, right in your browser. Nothing is ever uploaded.

Drop a PDF here or click to choose One PDF · the watermark applies to every page

Add a text watermark like CONFIDENTIAL or DRAFT across every page of a PDF, with full control over the opacity, angle and colour — free and entirely in your browser, so nothing is uploaded.

How to watermark a PDF

  1. Open your PDF. Drop a PDF in or click to choose one, and the first page appears in the preview.
  2. Type your watermark. Enter your text (for example CONFIDENTIAL) and set the size, colour, opacity and angle.
  3. Pick a layout. Choose a single centred stamp, or tile the text repeatedly across the whole page.
  4. Apply and download. The watermark is added to every page — preview it, then download your PDF.

Frequently asked questions

Is my PDF uploaded or kept private?

Your PDF is never uploaded. The watermark is applied in your browser on your own device, so the file never leaves your computer or phone.

Is it free and do I need an account?

Yes, it's completely free with no sign-up.

Can I change the opacity, angle and colour?

Yes. Sliders control the opacity, font size and rotation, and you can pick any colour, so the watermark can be a subtle grey or a bold stamp.

Does it watermark every page?

Yes, the watermark is applied to all pages of the PDF.

Can I tile the watermark across the page?

Yes. Choose Tile to repeat the text in a grid across each page, or Center for a single stamp.

Does it work on mobile?

Yes, it runs in any modern mobile browser.

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