Watermark PDF
Stamp a watermark across every page — privately, in your browser.
Click or drag files here
Supports PDF documents up to 100MB. Processed entirely in your browser.
How it works
1
Select a file
Drop a PDF into the upload area.
2
Set the text
Type your watermark and pick an opacity.
3
Apply
Download the watermarked document.
Frequently Asked Questions
Can I watermark confidential files safely?
Yes — the file is processed in your browser and never uploaded.