Add Watermark to PDF
Stamp a text or image watermark across your PDF — with a live preview of the result.
Drag & drop PDF files here
or browse from your device — you can watermark multiple files at once
Add Watermark to PDF online — fast, customizable, and secure
Our Add Watermark tool gives you full control over how your documents are marked. Stamp "CONFIDENTIAL" across the centre of every page, tile your company logo as a pattern, or place a discreet copyright line in a corner. Customise the font, colour, opacity, rotation and exact placement with a live preview, then fine-tune the result in the editor before you download.
Text & Image support
Type your own text watermark or upload a logo in PNG/JPG format.
Precision Placement
Anchor watermarks to specific corners or tile them as a full-page mosaic.
100% Secure
Your files stay private to you — nobody else can open them.
Frequently asked questions
You can upload your PDF, watermark it and keep editing in the AI Studio before you pay anything. Downloading the finished file is part of every MojoPDF plan — start with the 7-day trial for $1 and cancel any time.