Add Watermark to PDF
Stamp text or your own image (logo, stamp, signature) across every page of your PDF.
100% Client-Side Privacy — Your files never leave your device
Choose PDF File
Drag and drop here, or tap to browse from your device
Supported: .pdf•Max 50MB•100% In-Browser
The Best Free Online Watermark PDF Tool
Need to add stamps to your PDF? With PDFAdore you can do it in a few clicks, right in your web browser. It works just as well for business, school and personal documents.
Why Use PDFAdore?
Secure & Private
Your file is processed on your own device, inside your browser. It is never uploaded to our servers, so nobody else can see it.
Fast & Easy
A simple, step-by-step interface lets you add stamps to your pdf in seconds, with no learning curve.
No Installation
Works in any modern browser on Windows, Mac, Linux, Android and iPhone. Nothing to download or install.
Completely Free
Use Watermark PDF for free, with no watermarks and no sign-up. Premium raises the file size and batch limits.
When to Watermark PDFs
- Protect your intellectual property with visible watermarks.
- Add 'Draft', 'Confidential', or 'Sample' stamps to documents.
- Brand your documents with your company logo.
- Prevent unauthorized copying or distribution.