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Add Watermark to PDF — Free Online
Add Watermark stamps text such as CONFIDENTIAL or DRAFT across every page of your PDF. It runs in your browser.
Open Add Watermark to PDF tool →
✓ 100% free
✓ No sign-up
✓ No file upload
✓ Works in your browser
How to Add Watermark to PDF
- 1Open the Add Watermark tool and add your PDF.
- 2Type your watermark text and set the opacity.
- 3Click Apply to stamp every page.
- 4Download your watermarked PDF.
Open Add Watermark to PDF tool →
Why use Add Watermark to PDF?
A watermark marks documents as draft, confidential or yours, discouraging misuse and unauthorised copies.
Common use cases
- Stamp DRAFT on a document under review.
- Add CONFIDENTIAL to sensitive files.
- Brand pages with your name or company.
Tips
- Lower the opacity so text stays readable.
- Apply to all pages for consistency.
Frequently asked questions
How do I watermark a PDF?
Open the Add Watermark tool, type your text, set opacity, then download the stamped PDF.
Is it free?
Yes, adding watermarks is free.
Is my file uploaded?
No, watermarking happens in your browser.