Free Add Watermark to PDF Online – Fast & Private
Insert text or image watermarks into PDFs instantly in your browser. Customize position, opacity & more – no signup, no watermarks added by tool. Perfect for branding or security.
Watermark PDF – Free & Private
Add custom text watermark to your PDF directly in browser.
No server upload, 100% private, processed locally.
Great for "DRAFT", "CONFIDENTIAL", company name, date, etc.
Drag & drop PDF here
or
Drag & drop PDF • Text or image watermark • Adjustable opacity & position • No server upload • 100% private
How to Add Watermark to PDF in 4 Simple Steps
- Upload – select or drag your PDF file
- Customize – add text/image, set position, size, opacity
- Apply – choose pages and process in browser
- Download – save watermarked PDF
Why Use This PDF Watermark Tool?
- 100% browser-based – no installation required
- Private watermarking – files never leave your device
- Supports text and image watermarks
- Full customization: position, rotation, opacity, color
- Free with no limits or added watermarks
- Applies to all pages or selected ranges
- Offline use after installing as PWA
PDF Watermark Tool Comparison
| Feature | Waridi Tech | Other Online Tools |
|---|---|---|
| Privacy | Local processing | Often uploads to server |
| Cost | Completely free | Free with limits / paid |
| Watermarks by Tool | None | Frequent on free tier |
| Customization | Position, opacity, rotation, color | Often basic presets |
| No Install | Yes | Sometimes requires software |
Frequently Asked Questions
Is this PDF watermark tool free?
Yes – completely free, no limits, no registration needed.
Are my PDFs uploaded to any server?
No – watermarking is processed 100% in your browser. Files stay on your device.
Can I use both text and image watermarks?
Current version supports one type per run (text or image). Apply sequentially if needed.
What watermark customization is available?
Position (corners/center/diagonal), size, opacity/transparency, rotation, color (for text), repeat across pages.
What is the maximum file size?
Up to 100 MB recommended (browser-dependent; larger files may process slower).
Does watermarking affect document quality?
No – adds overlay only. Original content quality remains unchanged.
Can I apply watermark to selected pages only?
Yes – choose all pages or specify page ranges/numbers.
Why add watermark to PDFs online?
Mark documents as confidential, draft, sample or branded; prevent unauthorized use; indicate ownership on shared files, proposals or previews.
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Ready to Watermark Your PDF?
Fast, private, free – brand or secure documents now.
Available Worldwide
Works in all modern browsers on desktop, tablet and mobile. Updated March 2026 – supports English and expanding language options.