Add watermark to PDF
Add a text watermark across every page of a PDF — CONFIDENTIAL, DRAFT, or your name. Control the opacity, size, and angle before you export.
How to use this tool
- Upload the PDF to watermark.
- Type your watermark text.
- Adjust the opacity, size, and rotation to taste.
- Click Apply and download the watermarked PDF.
Every tool here runs 100% inside your web browser. Your files are processed on your own device and are never uploaded to a server, so your documents stay completely private. The tools are free, with no signup, no email, no watermarks, and no page limits.
Frequently asked questions
Are my files uploaded to a server?
No. Every tool runs entirely inside your browser using JavaScript and WebAssembly, so your files never leave your device. Nothing is uploaded, stored, or sent anywhere.
Can I change how the watermark looks?
Yes. Set the text, opacity, font size, and angle so the watermark is as subtle or as bold as you need.
Does the watermark go on every page?
Yes. The watermark is stamped across all pages so it is visible no matter which page is viewed or printed.
Can the watermark be removed later?
The stamp becomes part of the page content, so casual copying keeps it visible. If you need to undo it on your own file, keep the original — that is always the cleanest way back.
Is it really free, with no signup?
Yes. Every tool is free to use with no account, no email, no watermarks, and no hidden page limits.