Add Watermark to PDF
Add text watermarks to PDF documents. Customize position, opacity, color, and rotation. Free online PDF watermark tool.
Free PDF watermark tool. Add text watermarks with custom position, opacity, color, and rotation. Tiling option available. No uploads.
- ✓ Text watermarks with custom styling
- ✓ 6 position options including tile/repeat
- ✓ Adjustable opacity, color, and rotation
- ✓ Preview before downloading
- ✓ 100% browser-based processing
How to Add a Watermark to PDF
- 1 Upload your PDF document
- 2 Enter your watermark text and customize the font size
- 3 Adjust the opacity, color, position, and rotation
- 4 Click 'Apply Watermark' to add it to all pages
- 5 Download your watermarked PDF file
Frequently Asked Questions
Can I merge PDFs without uploading them? ▼
Yes! MagicKit processes all PDFs directly in your browser using pdf-lib. Your files never leave your device.
Is there a file size limit? ▼
No strict limit. Since processing happens in your browser, larger files may take longer but there's no server-imposed restriction.
Will the PDF quality be reduced? ▼
No. MagicKit preserves the original quality of your PDFs. Compression is only applied when you explicitly choose it.
Can I process password-protected PDFs? ▼
Yes, use our PDF Unlock tool to remove passwords, or enter the password when prompted in other tools.
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Last updated: January 15, 2026 · v2.1