Watermark PDF
Stamp a text watermark like DRAFT or CONFIDENTIAL across every page of a PDF. Runs in your browser, no upload.
- Runs in your browser
- Nothing uploaded
- Free, no sign-up
Place a text watermark like DRAFT or CONFIDENTIAL across every page, then download. Your file stays on your device.
How to Use Watermark PDF
- Add your PDF. Drag the file onto the box or click to choose it.
- Set your watermark. Type the text, then choose a diagonal or horizontal angle, the size, how see-through it is, and the color.
- The tool stamps every page. It draws the watermark across each page with pdf-lib, right in your browser.
- Download. Save your watermarked PDF. The original file is left untouched.
Frequently Asked Questions
Is my document uploaded anywhere?
No. The watermark is added in your browser, so the file never leaves your device.
Does it mark every page?
Yes. The watermark is drawn across all pages so it is consistent throughout the document.
Can I make it diagonal?
Yes. Choose Diagonal for the classic corner to corner look, or Horizontal for a straight line.
Can I control how strong it looks?
Yes. The opacity slider sets how see-through it is, and you can pick any color and size.
Can a watermark be removed later?
The text is drawn into the page content rather than a separate layer, so it is not a one click removal. Keep your original file if you need a clean copy.
What should I write?
Common choices are DRAFT, CONFIDENTIAL, SAMPLE, or your name or company, but any short text works.
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