Watermark PDF
Stamp your PDF with a text watermark.
Add custom text like "CONFIDENTIAL" or "DRAFT" to every page. Choose position, font size, color, and opacity — then download your stamped PDF.
Drop your PDF here, or browse
Free · No sign-in · Processed in browser
🔒 Processed entirely in your browser — your file never leaves your device.
Features
Flexible watermarking in seconds
- ✓Custom text — any word or phrase
- ✓Diagonal, center, top, or bottom placement
- ✓Opacity slider from subtle to prominent
- ✓Four color presets: gray, black, red, blue
- ✓Small, medium, or large font size
- ✓Applied to every page in one click
How to use
Upload
Drop your PDF or click to select it from your device.
Customize
Enter your watermark text. Pick position, font size, color, and opacity.
Apply
Click Apply — the watermark is added to every page instantly.
Download
Download your watermarked PDF. The original file is untouched.
Frequently asked questions
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