PDF Watermark | Add Text or Image Watermarks (Free & Private)
Add text or image watermarks to PDFs with full customization — position, opacity, rotation, and color. 100% local processing keeps your documents private, secure, and fast.
How to Use This Tool
- 1
Upload your PDF file
- 2
Select watermark type: text or image
- 3
Customize position, opacity, rotation, and color
- 4
Choose page range: all or specific pages
- 5
Click 'Apply Watermark' to process
- 6
Download your watermarked PDF instantly
Use Cases & Examples
Document Protection
Label documents as CONFIDENTIAL, DRAFT, or SAMPLE to prevent unauthorized use.
Corporate Branding
Add logos or branding to company documents and reports.
Copyright and Ownership Marking
Insert copyright notices, timestamps, or digital ownership marks.
How PDF Watermarking Works
Uses the pdf-lib library to load and edit PDF documents client-side.
Text watermarks support custom fonts, colors, transparency, and rotation.
Image watermarks support full scaling, positioning, and opacity control.
All processing happens in the browser for speed, privacy, and security.
Frequently Asked Questions
Q.Is it safe to add watermarks online?
A. Yes — all processing happens locally in your browser. No uploads, no servers involved.
Q.What watermark types are supported?
A. You can apply both text watermarks (e.g., CONFIDENTIAL, DRAFT) and image watermarks (logos, seals).
Q.Can I customize watermark appearance?
A. Yes — you can fully customize watermark placement, opacity, rotation, size, and color.
Q.Can I add watermarks to specific pages only?
A. Yes — apply watermarks to all pages or specific ranges such as 1-3, 5, 8-10.
Q.Can I watermark password-protected PDFs?
A. No — encrypted PDFs must be unlocked before adding a watermark.
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