PDF Watermark
Protect and brand your documents instantly. Professional-grade watermarking that stays 100% private in your browser.
Upload PDF File
Drag and drop your document here, or click to browse. Max file size: 10MB
Pro Customization
Fine-tune every detail. From font sizes and colors to image scaling and rotation, gain full control over how your brand appears.
Privacy Locked
No servers involved. We use WebAssembly to process your large PDF files directly in your browser, ensuring sensitive data remains yours.
Smart Positioning
Use predefined anchors or enable tiling to repeat your watermark across the entire page. Perfect for document protection and branding.
Protect your vision with
Precision Watermarking
Learn why our client-side approach is the gold standard for professional document management.
Why Watermark?
Watermarking isn't just about branding; it's about intellectual property security. By applying a semi-transparent layer to your PDF, you discourage unauthorized distribution and ensure your professional identity is tied to your work permanently.
- Label confidential materials
- Protect copyright works
- Standardize corporate documents
- Track draft versions
Client-Side Security
We never see your files. No cookies, no uploads, no logs. Just high-performance local processing.
Tool Insights
Answers to common document security questions.
Is it safe to process my private PDFs?
Yes! We use 100% client-side technology. Your files are never uploaded. Processing happens entirely within your browser on your own device.
What image formats work best?
We support PNG and JPEG image formats. For the best result, use a transparent PNG logo as your watermark.
Can I select specific pages?
Absolutely. You can choose to apply the watermark to all pages, just the first page, or specify a custom range like '1, 3-5'.
Is there a file size limit?
To ensure smooth performance inside your browser, we limit uploads to 10MB per file, which covers most documents.
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