Watermark
Add a watermark to a PDF without uploading it
Stamp CONFIDENTIAL across a draft, brand every page with your logo, or mark a copy as sample only — text or image, diagonal or tiled. Everything runs locally in your browser: your file never touches a server.
Drop the PDF you want to watermark
processed locally · nothing uploads · watermark is drawn into the page itself
How it works
01
Drawn into the page
The watermark becomes part of each page's content stream — it prints, exports and screenshots exactly as you see it.
02
Text or image, your rules
Diagonal text, a tiled grid, or your logo in any corner — with size, rotation and opacity tuned to stay readable underneath.
03
Zero upload
Confidential drafts stay confidential: the file is read and rewritten by your own device. Open your network panel and verify — no bytes ever leave the browser.