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Add Watermark to PDF

PDF Tools • Free • No Sign-up

Add Watermark to PDF lets you stamp custom watermark text across pdf pages with adjustable opacity and size directly in your browser. It is designed for quick results, simple steps, and no account creation.

All files are processed locally in your browser and never uploaded to any server.

? How To Use

  1. 1 Upload one PDF file.
  2. 2 Enter watermark text and adjust opacity and font size.
  3. 3 Click "Add Watermark" and download the updated PDF.

✓ Benefits

  • Protect drafts with labels like CONFIDENTIAL or SAMPLE.
  • Fast visual branding for shared documents.
  • No external upload required.

Q Frequently Asked Questions

Can I set watermark transparency?
Yes. You can set watermark opacity between 0.05 and 0.9.
Will watermark be added to every page?
Yes. The watermark text is applied to all pages in the PDF.
Can I remove watermark later?
Watermark becomes part of the saved output. Keep your original file if you need an unwatermarked version.
Can I use Add Watermark to PDF on mobile devices?
Yes. Add Watermark to PDF works in modern mobile browsers, so you can run it on Android and iPhone without installing an app.
Is free add watermark to pdf online safe for private files or text?
This tool runs in your browser for processing tasks. Review the on-page privacy note for this tool and avoid sharing sensitive data on public devices.

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