Watermark
Add a text watermark
Enter the notice, then choose placement, color, and opacity. The result is a new file; the original stays unchanged.
Local browser processing No uploads. No account required.
How do I add a watermark?
- Choose a PDF.
- Enter the watermark text.
- Choose centered or tiled placement, plus color and opacity.
- Create and download the new PDF.
Does this change the original?
No. The browser creates a new PDF. Files with common digital-signature markers are blocked so the signed original is preserved.
How is the text drawn?
The browser draws the text into a transparent image and embeds that image on each page, so non-Latin text does not depend on standard PDF fonts.