Watermark a PDF

Stamp every page with your own text — CONFIDENTIAL, DRAFT, a name — entirely in your browser.

Drop a PDF here

or click to choose

Add a file to begin.

Want this as an app?

We're considering a Chrome extension and a desktop version with batch mode. Leave your email and we'll write exactly once, when it ships — no newsletter, no spam.

Frequently asked questions

Can I set my own watermark text?

Yes — type anything you like; it's stamped diagonally across every page at a light opacity so the content underneath stays readable.

Will the watermark cover my content?

It's drawn at 22% opacity, so it's clearly visible without hiding the text or images underneath.

Does this upload my file?

No. The watermark is drawn onto the PDF entirely in your browser.