How to watermark a PDF
- Drop your PDF above.
- Type your watermark text. Adjust opacity, size, and angle under Options — the defaults suit most documents.
- Click Add watermark, then Download. Every page is stamped on your device; nothing is uploaded.
Frequently asked questions
How do I add a watermark to a PDF for free?
Drop your PDF above, type the watermark text (like CONFIDENTIAL or DRAFT), adjust opacity and size if you want, and click Add watermark. Every page is stamped and the result downloads instantly — free, with no watermark-on-your-watermark nonsense.
Can I control how the watermark looks?
Yes — set the text, opacity, size, and choose diagonal or horizontal placement under Options. The defaults (large, light, diagonal) work for most documents.
Does the watermark appear on every page?
Yes, the text is stamped identically on every page of the document.
Is my document uploaded?
No — watermarking runs entirely in your browser. Files marked CONFIDENTIAL probably shouldn't be uploaded to a random server to get that word stamped on them.