Add Watermark to PDF Free Online

Protect and brand documents with diagonal or tiled text marks — or stamp your company logo across every page. Batch mode handles whole folders.

Free forever · No watermark · No signup · Files never leave your device. Use it right below — the interactive tool loads with this page.

How to use Add Watermark

Text or logo — which is better?

Text for CONFIDENTIAL/DRAFT marks; upload your logo for branded corporate documents.

Can I watermark many files at once?

Yes. Batch mode stamps every file with identical settings and zips the results.

Will the watermark print and copy?

It prints, yes. It is a visible overlay — for certified protection, also Protect the file with a password.