Watermark
Text or an image, at any angle and opacity, over or under the page content.
or drop a PDF anywhere on this page
Processed on your device. Nothing is uploaded.
Done
DownloadAbout Watermark
Watermark PDF stamps text (like CONFIDENTIAL or DRAFT) or your logo onto PDF pages. Set the position, angle, size, colour and opacity, repeat it across the page, and choose whether it sits over the content or behind it like a real watermark.
A live preview shows the result on every page. Your file is watermarked in your browser and never uploaded.
Why use hellpdf
- Text or image (PNG with transparency)
- Nine positions or tiled
- Any angle and opacity
- Over or under the page content
How to watermark a PDF
- Add your file. Pick it or drop it on the page. It's read by your browser and never uploaded.
- Check the preview. Thumbnails show every page. Click one to read it full size.
- Download. Your file is ready right away. Close the tab and it's gone.
Watermark: frequently asked questions
Can I put the watermark behind the text?
Yes. Choose Layer: Under content. It sits behind text and images, like a printed watermark.
Can a watermark be removed?
Anyone with PDF editing software can remove a watermark; it discourages copying but isn’t protection. Use Protect PDF for that.
Is it safe for confidential files?
Your file never leaves your device: hellpdf does this in your browser, so nothing is uploaded and there’s no file size limit beyond what your device can handle.
Is it really free?
Yes. It’s free with no sign-up, no watermark and no daily limit on the tools that run in your browser.