QiLing Tools

💧Watermark PDF - Add Text Watermarks to PDF Online

Add a text watermark such as "CONFIDENTIAL" or "For ACME use only" to every page. Set font size, color, opacity, rotation and choose a centered or tiled layout to mark ownership and discourage sharing.

Free · No sign-up · Runs in your browserLast updated:

Need a full PDF editor?

Try Qiling PDF Editor: edit the original text, add text, images and annotations, find & replace and manage pages — all in one place. Also free, and your files never leave your browser.

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How to use Watermark PDF

  1. 1Upload a PDF file
  2. 2Type the watermark text and set size, color, opacity, angle and layout
  3. 3Click start and download the watermarked PDF

FAQ

Can the watermark be removed?
The watermark is stacked on the page as an image. Ordinary readers cannot remove it, but professional editors might, so do not rely on it as your only protection.
Are my files uploaded to a server?
No. Everything runs locally in your browser via WebAssembly. Files never leave your computer and are discarded when you close the page.
Do I need to sign up or pay?
No. The site is completely free, requires no account, has no usage limits and adds no watermarks.

Features

  • Any language, including CJK text
  • Centered or tiled layout
  • Adjustable opacity, angle and color
  • Applied to every page