Add Watermark to PDF
Add a diagonal text watermark — like "DRAFT" or "CONFIDENTIAL" — across every page of a PDF, with adjustable opacity.
Frequently asked questions
Is Add Watermark free to use?
Yes, completely free with no signup, no watermarks, and no limit on how many times you use it.
Is my file safe?
Yes. Your file is processed on this server and deleted automatically right after — it's never uploaded to a third party or stored.