Add watermark to PDF
Stamp text such as CONFIDENTIAL, or your logo, across the pages of a PDF.
Private by design: your files are processed on your device and never uploaded.
How to add watermark to PDF
- Add your PDF.
- Choose text or picture, then the position (or tiled), strength and angle.
- Press “Add watermark” and download.
About Add watermark
Watermarks discourage copying and make clear a document is a draft or confidential. “Behind the content” keeps the text readable while the mark sits underneath.
Questions
Is it safe to watermark a PDF here?
Yes. The work happens inside your own browser, so the file is never uploaded to a server — not ours, not anyone's. That makes it safe for contracts, bank statements, ID cards and other private documents.
Can I use my logo?
Yes — choose “Picture or logo” and add a PNG or JPG.
Can I watermark only some pages?
Yes — open “More options” and type the pages.
Is it really free?
Yes — watermarking is completely free, with no sign-up, no watermark and no daily limit.
Can I add a watermark on my phone?
Yes. It works in the browser on Android phones, iPhones, tablets and computers. Nothing to install. It works best in Google Chrome.