Add watermark to PDF

Stamp text like CONFIDENTIAL across every page.

100% in your browser Truly free — no sign-up, no card, no subscription.

Drop a PDF here or click to choose

How it works

Add a text watermark (e.g. CONFIDENTIAL or DRAFT) across every page of your PDF, with adjustable size, opacity and a diagonal option. Everything runs in your browser: the file is never uploaded.

Frequently asked questions

Can I change the opacity and angle?

Yes, adjust size and opacity with the sliders and toggle a 45° diagonal.

Is my document uploaded?

No. The watermark is applied in your browser; nothing leaves your device.