Edit & sign

Add a watermark to a PDF

Stamp text or an image across every page.

Open in editor →Free · no sign-up · nothing uploaded

Mark documents as Draft, Confidential or Copy, or brand them with a logo. Control the opacity, angle and size so the watermark is visible without hiding the content.

Applied to every page at once and baked into the file on download.

How to watermark pdf

  1. 1Open the PDF in the editor.
  2. 2Open the Tools panel → “Watermark”.
  3. 3Choose text or an image, set opacity and angle.
  4. 4Apply and download.

Why use pidief

  • ✓ Text or image watermark
  • ✓ Opacity, angle, size
  • ✓ All pages at once
  • ✓ Everything runs in your browser — your file is never uploaded to a server.

Add a watermark to a PDF now — free

Runs in your browser. No upload, no login, no watermark.

Open in editor →

Related tools

Add page numbers
Page numbers, headers, footers and Bates stamps.
Protect PDF
Encrypt a PDF with a password so only you can open it.
Add links to PDF
Turn any area into a clickable hyperlink.

Looking for something else? Browse all 23 tools →