ConvertAnyFiles

Add Watermark to PDF

Stamp a text watermark across your PDF pages to mark them as confidential, a draft, or your property. Adjust the size, colour, transparency and angle, and preview it before you save.

Free · No sign-up · Files stay on your device

How to use Add Watermark to PDF

  1. 1Choose the PDF you want to watermark.
  2. 2Type the watermark text, for example "CONFIDENTIAL".
  3. 3Adjust the size, opacity, colour and angle.
  4. 4Click "Add watermark" and download the new PDF.

Features

  • Watermark every page or a page range
  • Custom text, size, colour and opacity
  • Diagonal, horizontal or any angle
  • Original text stays selectable
  • Files never leave your device

Why watermark a PDF?

Watermarks discourage people from sharing or reusing documents without permission and make the status of a document obvious. Common examples are CONFIDENTIAL on contracts, DRAFT on documents under review, SAMPLE on previews, and your company name on proposals.

Can a watermark be removed?

This tool draws the watermark into each page, so it cannot simply be switched off in a PDF reader. Determined users with PDF editing software can still remove it, so a watermark is a deterrent rather than a guarantee.

Frequently asked questions

Can I watermark only some pages?

Yes. Enter pages like "1-3, 7" in the Pages box. Leave it empty to watermark every page.

Which characters can I use?

Latin letters, numbers and common punctuation, including accented letters like é and ü. Other alphabets are not supported by the built-in PDF font.

Does it work with scanned PDFs?

Yes. The watermark is drawn on top of each page, whether the page contains text or a scanned image.

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