Choose and preview
Add a PDF and select the pages to stamp.
Watermark PDF privately.
Place a customizable text watermark on every page without sending your document away.
Your file stays on this device · No signup · No watermark
Files never leave this browserPrivate workspace
Drop one pdf file hereWe'll build private previews on this device
Built for this exact task
How to use Watermark PDF
Place text or an image watermark with live page previews, opacity, rotation, repeat, and page-selection controls.
Make your changes
Choose text or image, then adjust opacity and rotation.
Verify and download
Confirm the live preview and apply the watermark.
Files stay on deviceCompletely freeVerified output
Questions about Watermark PDF
Useful answers before you start.
Privacy+
PrivatePDF performs the document work inside your browser. Your PDF bytes are not uploaded for processing.
Local processing+
Preview every change and process locally in your browser. Free, private, and no signup.