📄Drop your PDF hereor click to choose a file. It stays on your device.
Preview of page 1
What it does. Adds a text or image watermark to every page of a PDF, or only the pages you choose. Everything happens in your browser.
How to watermark a PDF
- Drop your PDF onto the box.
- Type your watermark text or upload an image. Set size, opacity, rotation and position.
- Check the preview of page 1, then press Add watermark and download.
Tips for better results
- Use a low opacity such as 20 to 30 percent so the page stays readable.
- Tile mode repeats the mark across the page, which is harder to crop out.
- Use a page range to leave the cover page clean.
Limits to know about
- The watermark is added on top of the page. Anyone with PDF editing software may still be able to remove it.
- Text is drawn as a picture so any language works, but it cannot be selected.
- Password protected PDFs cannot be opened.
- Tested with generated sample PDFs. Check the result on your own file.
Privacy
Your PDF and image never leave your device. Libraries load from a public code network (jsDelivr).
Frequently asked questions
Is Watermark PDF free?
Yes, no sign-up and no limit.
Can I use a logo?
Yes. Upload a PNG or JPG image as the watermark.
Can I watermark only some pages?
Yes, enter a page range like 2-5.
Does it support Hindi text?
Yes. Text is drawn as an image, so any script your device can show will work.
About this tool
Watermark PDF is part of the PDF tools on ToolsRiver, added in November 2026.