PDF tool
Add a Watermark to a PDF
Place text or a PNG/JPG watermark on chosen PDF pages with control over size, opacity, angle, and position.
Page preview
No PDF loaded
Your file never leaves your device.
Simple steps
How it works
- 01
Choose a PDF, then select text or image watermark mode.
- 02
Adjust the appearance, placement, tiling, and optional page range while checking the preview.
- 03
Apply the watermark and download the marked PDF.
Good to know
Frequently asked questions
Can I use a picture as a watermark?
Yes. Select a PNG or JPG image. The image is embedded in the PDF locally.
Can I watermark only some pages?
Yes. Enter a page range such as 1-2, 5. Leave the range blank to include every page.
What does tiled placement do?
Tiled placement repeats the watermark across each chosen page instead of drawing it once.
Can I see the placement before applying it?
The thumbnail preview reflects the text, opacity, angle, and placement controls. The worker applies those settings to the exported PDF.
Are my PDF or image uploaded?
No. The selected files are processed on your device in a Web Worker.