Add watermark
Stamp text across pages
Stamp text across every page — diagonally or in a fixed position — with adjustable opacity and colour.
Questions
- Are my files uploaded anywhere?
- No. Every tool on this site runs entirely inside your browser using JavaScript — your file is never uploaded to a server, because there is no server. You can confirm it by opening your browser’s network tab, or by disconnecting from the internet once the page has loaded: the tool still works.
- Can the watermark be removed later?
- Not by this tool. The text is drawn into the page content, so treat it as permanent and keep your original if you need a clean copy.
- Can I control how faint it is?
- Yes. Opacity is adjustable from barely-there to fully solid, and you can pick grey, black or red ink.
- Why can I only use Latin characters?
- The built-in PDF fonts cover the WinAnsi character set. Text outside it is rejected up front rather than producing a broken file.