Watermark PDF
Add text or image watermarks to your PDF documents securely in your browser.
Select a PDF to Watermark
Upload a PDF document to add text or image watermarks.
Upload a PDF
Drag & drop a PDF file here or click to browse
About Watermark PDF
The **Watermark PDF** tool allows you to stamp your documents with custom text or image watermarks. Whether you need to add a 'CONFIDENTIAL' stamp or overlay your company logo, this tool provides a visual way to protect your PDFs. All processing is strictly local to your browser for ultimate privacy.
How to Use
Real-World Examples
Branding a Document
Upload a proposal and apply your company logo as a watermark with 20% opacity across all pages.
Best Practices
- Use subtle opacity (10-30%) so the watermark doesn't obscure the underlying text.
- Place watermarks diagonally across the center for maximum protection against unauthorized use.
Pro Tips
You can configure different watermarks for specific page ranges.
Frequently Asked Questions
Are my documents uploaded to a server?
No. Everything runs strictly locally via JavaScript in your browser.
Security & Privacy
100% Secure & Private. All PDF processing occurs entirely within your browser's local memory. Your sensitive documents are never uploaded to any remote servers.