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Watermark PDF

Stamp CONFIDENTIAL, DRAFT, COPY or your brand name across every page of a PDF.

  • Free
  • Files stay on your device
  • No sign-up needed

Guest: 10 of 10 free tasks left today · Go unlimited with Pro

Quick answer

Upload a PDF, type your watermark text, adjust size, colour, opacity and angle with the live preview, then click Add watermark. The watermark is drawn on every page of the downloaded PDF.

Watermark type:
Text
Options:
Size, colour, opacity, diagonal
Pages:
All pages
Preview:
Live
Upload needed:
No
Price:
Free

A watermark tells readers a document is a draft, confidential, or belongs to you — and discourages people from passing it off as their own. With our PDF watermark tool you can add a clear, professional text watermark to every page in seconds.

How to use Watermark PDF – step by step

  1. 1 Upload a PDFDrop the document onto the tool.
  2. 2 Design the watermarkType your text and adjust font size, colour, opacity and whether it runs diagonally. The preview updates as you go.
  3. 3 Apply and downloadClick Add watermark to download the stamped PDF.

Why use our Watermark PDF?

Live preview

See roughly how the watermark will sit on the page before you apply it.

Subtle or bold

Set opacity from a faint 5% to fully solid.

Centred on every page

Works with mixed page sizes and orientations.

Private

Your document never leaves your device.

Good watermark ideas

  • DRAFT – for documents still under review.
  • CONFIDENTIAL – for internal reports and contracts.
  • SAMPLE or PREVIEW – for e-books, templates and designs you sell.
  • Your name or company – for portfolios and quotes.
  • “Copy for [recipient]” – to trace who shared a document.

A 15–25% opacity keeps the document readable while making the watermark obvious.

Can a watermark be removed?

A text watermark makes casual copying harder, but determined people with PDF editing software can sometimes remove it. For sensitive documents, combine a watermark with sharing only the pages needed (Split PDF).

Frequently asked questions

How do I add a watermark to a PDF for free?
Upload the PDF here, type your watermark text, adjust the style and click Add watermark.
Can I change the watermark colour and transparency?
Yes. Pick any colour and set the opacity with the slider.
Is the watermark added to every page?
Yes, it is centred on every page of the document.
Can I add an image or logo watermark?
Text watermarks are available now. Logo watermarks are on our roadmap.

Last updated November 2026 · Written and tested by the SmallEasyTools team.