Add Watermark to PDF
newStamp a custom text watermark across every page of a PDF.
100% Client-Side Processing • Your Data Never Leaves Your Browser
About Add Watermark to PDF
Stamp every page of a PDF with a text watermark — set your own text, size, color, rotation angle, and opacity, then choose a placement preset. A live preview of the first page lets you check the look before applying it to the whole document.
Commonly used to mark drafts, add confidentiality notices, or brand shared documents. All drawing happens locally via pdf-lib.
Key Features
Custom text, font size, color, opacity, and rotation angle
Center, tiled, or diagonal placement presets
Live preview of the first page before saving
Runs 100% in your browser — files are never uploaded
Frequently Asked Questions
Can I add an image watermark instead of text?
This tool currently supports text watermarks only. Image watermarks may be added in a future update.