Add Watermark to PDF Online
Stamp custom text watermarks across every page of your PDF.
Choose PDF File(s) or Drag & Drop
Supports up to 1 file(s), max 50MB each.
Select Files
About Add PDF Watermark
Stamp text watermarks like 'CONFIDENTIAL', 'SAMPLE', or your company name across PDF pages.
100% Privacy Protected
High Speed Processing
No Registration Required
How to Use Add PDF Watermark Online
1. Upload your PDF document.
2. Type your watermark text and configure font size, opacity, and rotation angle.
3. Click 'Add Watermark'.
4. Download your watermarked PDF document.
Key Features
Configurable watermark text, size, color, and opacity
Diagonal 45-degree or horizontal watermark placement
Applies consistently to all pages or custom ranges
Preserves underlying document text searchability
Frequently Asked Questions
Is ReviewIt.xyz free to use?
Yes, all 15 PDF tools on ReviewIt.xyz are 100% free to use with no account registration or credit card required.
Are my uploaded PDF documents secure?
Absolutely. Your uploaded files are encrypted during transit, processed in isolated temporary scratch directories, and automatically purged. We never inspect or store your documents permanently.
Can I use ReviewIt.xyz on mobile devices?
Yes, ReviewIt.xyz is fully responsive and works seamlessly across Android, iPhone, iPad, Windows, Mac, and Linux web browsers.