Watermark PDF
Draw a diagonal, centred or corner mark on each page. The PDF never leaves the device.
Processed in your browser · nothing uploaded
How it works
- 01
Choose a file for Watermark PDF. It accepts PDF. Most files stay in this tab.
- 02
Set the options on the workbench — preview, crop or timeline when this tool has one — then press Run.
- 03
Download the result. It is also saved in your tray so the next tool can pick it up without another upload.
About this tool
Type the stamp — Confidential, a name, a date. Diagonal is the usual review mark; a corner mark is quieter. Opacity keeps the text readable without hiding the page. Existing page content is copied, not re-rendered.
Questions
- What can I open in Watermark PDF?
- Watermark PDF accepts PDF. Older video containers such as AVI, WMV, FLV, MPEG and 3GP are decoded by the server encoder.
- Does Watermark PDF upload my file?
- Browser-native formats stay in this tab. Formats the browser cannot write (AVI, WMV, HEVC, AMR and similar) go to our encoder and are deleted after the download.
- How large can the file be?
- Free: 500 MB and 8 exports a day. Plus (waitlist) raises the daily cap. A pasted public file URL is also accepted.