PDF Watermark Tool - Add Text Watermarks Online
Add professional text watermarks to all PDF pages online instantly with our PDF Watermark Tool. Protect documents, add branding, or mark confidentiality status with semi-transparent watermarks—applied automatically across your entire document. No uploads, no risk, and free to use.
Runs in your browser
WebAssembly, no server
No signup required
Open and use instantly
Files stay private
Nothing leaves your device
How It Works
Upload your PDF.
Enter the watermark text (e.g., "CONFIDENTIAL").
Click "Add Watermark" to apply.
Key Features
- Add professional text watermarks to all PDF pages
- Semi-transparent, angled watermark styling
- No uploads or risk—browser-based
- Protects documents and adds branding
- Instantly applies to every page
About This Tool
Advanced PDF watermarking tool for adding professional text stamps to your documents. Automatically applies semi-transparent watermarks to every page for document protection and branding. Perfect for marking documents as confidential, draft, or approved. Supports custom watermark text with professional 45-degree angle presentation.
Frequently Asked Questions
Currently text-only with fixed styling; color/size customization coming soon.
The watermark is part of the PDF now, making removal difficult.
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