Add Watermark
Add customized text or image watermarks to your PDF files to protect intellectual property and establish your brand.
or drop PDFs here
Stamp transparent text overlays or custom company logos onto your PDF pages
Add Watermark to PDF – Protect PDF Documents Online
Stamp text or logo watermarks onto your PDF pages. Customize position, transparency, font, color, angle, and range to prevent unauthorized distribution.
What It Does
The Add Watermark tool overlays semi-transparent text blocks or logo images onto your document pages, showing ownership and status without hiding readability.
Why It Matters
Watermarking is essential to protect copyright, mark draft status, identify leaks, and prevent unauthorized file duplication.
How It Works
The tool stamps your customized text grid or image canvas onto the PDF drawing pipeline, embedding the layout permanently before output.
Supported Formats
Perfect For
- Stamping 'CONFIDENTIAL' on agreements
- Watermarking draft papers for peer review
- Adding company logo branding to client invoices
- Protecting photography ebooks from copying
- Marking historical document archives
Key Benefits
- Permanent watermark embedding
- Subtle, highly transparent overlays
- Supports both text and corporate logos
- Highly secure local execution
- Free with no registrations
Key Features
- Stamp text watermarks ('DRAFT', 'CONFIDENTIAL')
- Upload custom image logos as watermarks
- Adjust transparency and opacity levels dynamically
- Rotate watermarks to any angle
- Select position: centered, tiled grid, headers/footers
- Specify page ranges to watermark
- Completely client-side security - files never uploaded
The Add Watermark tool is a fast, reliable security utility for marking and protecting PDF documents.
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