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💧 PDF Watermark

Stamp a semi-transparent text watermark — like DRAFT or CONFIDENTIAL — diagonally across every page of a PDF.

About this PDF Watermark

PDF Watermark burns a diagonal, semi-transparent text stamp into every page of a PDF — the standard way to mark documents as DRAFT, SAMPLE, CONFIDENTIAL or with your company name. Because the text becomes part of each page, it survives forwarding and printing. Everything is processed locally in your browser.

How to use it

  1. Choose the PDF to protect.
  2. Type your watermark text, such as DRAFT or your brand name.
  3. Set the opacity — lighter is subtler, darker is harder to ignore.
  4. Press Add watermark and download the stamped PDF.

Example

A freelancer sends a proposal marked 'SAMPLE' at 25% opacity, so the client can review it but cannot pass it off as final work.

Frequently asked questions

Can the watermark be removed?

It is drawn into the page content, so casual removal is not possible with normal PDF viewers — that is what makes it useful.

Does it work on scanned PDFs?

Yes. The stamp is added on top of each page regardless of whether the page is text or a scanned image.

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