QRix
Stamp a text watermark across every page of your PDF.
A watermark overlays semi-transparent text (like CONFIDENTIAL, DRAFT or your brand name) across all pages. You control the text, opacity and whether it sits diagonally. Useful for protecting drafts, marking ownership and preventing unauthorized copying. Processing happens locally in your browser.
It's free, private and works right in your browser — no signup, no watermark.