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Watermark PDF

Stamp text like CONFIDENTIAL or DRAFT across your PDF pages — once or repeated.

  • 100% free
  • Centered or repeated
  • Files never leave your device

Drop a PDF to watermark

The PDF is opened in your browser — it's never uploaded.

Last reviewed by the OnlineToolPro team

What is the Watermark PDF?

Adds a text watermark to the pages of a PDF: once in the center, or repeated across the whole page. Adjust the size, angle, color and transparency, and choose which pages get it.

How it works

How to use the Watermark PDF

3 simple steps. No experience needed.

What can you use it for?

  • Mark a document as CONFIDENTIAL or DRAFT.
  • Add your name or company to a file you share.
  • Discourage copying of a sample or preview.

Getting the look right

A light watermark (15–25% opacity) at 45° keeps the document readable. The preview is approximate; the downloaded file uses the exact settings you chose.

FAQ

Frequently asked questions

Can a watermark be removed?

A text watermark is part of the page content, which makes casual copying harder — but anyone with PDF editing software can remove it. It isn't a security measure.

Which characters can I use?

Latin letters, numbers, accents and common symbols. Other alphabets aren't included in the standard PDF font, and the tool will tell you if something can't be used.

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