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What is Add Watermark?
Add text or image watermarks to your PDF documents. Protect your intellectual property, mark drafts, or add branding to your documents with customizable watermarks.
Key Features
How to Use Add Watermark
Upload your PDF
Enter watermark text or upload image
Customize position and opacity
Download watermarked PDF
Common Use Cases
Tips & Best Practices
Use 30-50% opacity for visible but non-intrusive watermarks
Diagonal text watermarks work best for full-page coverage
Use your logo as an image watermark for branding
Frequently Asked Questions
Can I watermark specific pages?
Yes! Apply watermarks to all pages, specific pages, or page ranges.
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Add Watermark is part of our Documents tools collection at AllInAOne. Use our free online tools for all your documents needs — no registration required.