Add Watermark to PDF — Free Online Watermark Tool
Add text watermark to your PDF pages (Client-side)
Drop PDF file here
or click to browse
How It Works
Upload Your PDF
Select or drag your PDF file
Add Watermark Text
Enter custom text and choose position, opacity, font
Download Watermarked PDF
Get your watermarked PDF instantly
Help & Tips
- Opacity: Use light opacity to keep text readable.
- Position: Center/diagonal placements are common.
- Font: Choose clear, professional fonts for text marks.
- Size: Scale watermark appropriately for page size.
- Preview: Check placement before saving final PDF.
Frequently Asked Questions
Is Add Watermark free?
Yes. 100% free, no sign-up required.
Can I customize the watermark text?
Yes. You can set your own text, choose position (center, top, bottom), adjust opacity and select font size.
Are my files uploaded to a server?
No. Watermarking is done entirely in your browser. Your files never leave your device.
Can I add an image watermark instead of text?
Currently only text watermarks are supported. Image watermarks are planned for a future update.
Will the watermark affect the rest of the PDF content?
No. The watermark is added as a transparent overlay. All existing content remains fully intact.
Why Use PDFLY for PDF Watermarking?
Add professional text or image watermarks to PDFs for branding, copyright protection, and document identification. Watermarks appear behind text for seamless integration.
- Text & Image Watermarks: Add custom text watermarks (e.g., "CONFIDENTIAL", "DRAFT") or image-based watermarks (logos, stamps)
- Batch Watermarking: Apply the same watermark to hundreds of PDFs simultaneously
- Customizable Appearance: Control watermark opacity, rotation, size, position, and color for optimal visibility
- Per-Page Control: Apply watermarks to all pages or specific page ranges within documents
- Background Watermarking: Watermarks appear behind text and images, preserving readability while adding protection
Supported Formats & Limitations
| Feature | Details |
|---|---|
| Input Format | PDF (standard and encrypted PDFs with password) |
| Output Format | PDF with watermark applied |
| Watermark Types | Text watermarks, image watermarks (JPG, PNG) |
| Maximum File Size | 100 MB per PDF |
| Opacity Range | 0-100% (0% invisible, 100% fully opaque) |
| Batch Limit | Up to 50 PDFs per watermarking batch |
Common Use Cases for PDF Watermarking
PDF watermarking protects intellectual property, establishes document status, and integrates branding across professional documents.
- Copyright Protection: Add "©" or copyright watermarks to protect creative works, e-books, and published content
- Document Status Marking: Apply "DRAFT", "CONFIDENTIAL", or "FOR REVIEW ONLY" watermarks to control document usage
- Brand Identity: Add company logos or watermarks to client deliverables, reports, and proposals for professional branding
- Expiration Dating: Watermark documents with expiration dates or version numbers for version control
- Legal Protection: Add "DO NOT DISTRIBUTE" or "INTERNAL USE ONLY" watermarks to sensitive or confidential documents