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Add Watermark to PDF

Stamp text across every page of a PDF — for drafts, confidential copies and proofs.

To watermark a PDF, add the file and enter your text. It is stamped on every page at the opacity, size, angle and colour you choose. The watermark is drawn into the page content, so it cannot be toggled off in a viewer — but it is not a security control.

Runs in your browser
Privacy
Runs entirely in your browser — nothing is uploaded
Cost
Free, unlimited, no sign-up

Frequently asked questions

Can the watermark be removed?

It is drawn into the page content rather than added as a removable annotation, so a viewer cannot toggle it off. A determined person with editing software can still remove it — treat this as a deterrent, not protection.

How to use the add watermark to pdf

  1. 1Select your pdf file — the file stays on your device and is never uploaded.
  2. 2Enter or paste your watermark text.
  3. 3Choose the position.
  4. 4Set the horizontal position.
  5. 5Set the vertical position.
  6. 6Set the opacity.
  7. 7Set the font size.
  8. 8Set the angle.
  9. 9Pick the colour.
  10. 10Press Run, then download the result when it is ready.

Embed this tool

Put the working add watermark to pdf on your own site. It runs in your visitors' browsers exactly as it does here — free, no account, nothing uploaded.

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