Add Watermark to PDF
📄💧
Drag and drop your PDF here
Supported: English and numbers only
Adding watermark...
About Add Watermark to PDF
Free Online PDF Watermark Tool: Add custom text or image watermarks to PDFs. Adjust transparency and placement. Batch processing, no page limits, 100% secure.
How to use Add Watermark to PDF
Add watermarks to your PDFs easily: 1. Upload your PDF file. 2. Choose between text or image watermark. 3. Customize settings like position, opacity, and color. 4. Click 'Add Watermark' to secure your document and download instantly.
How it works
This tool embeds watermarks into your PDF locally in the browser using high-performance pdf-lib. It adds a visual layer to the existing document structure without any file data being sent to a remote server, ensuring total confidentiality.
Privacy & Security
- ✅ 100% Private: No server-side storage
- ✅ Fast: Zero upload/download latency
- ✅ Secure: Sandbox processing environment