Watermark PDF
Add text or image watermarks to PDF files
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âī¸ How It Works
Upload a PDF, add a text or image watermark, customize opacity, size, and rotation, then download your stamped PDF in seconds.
â Frequently Asked Questions
How do I add a watermark to a PDF?
Upload your PDF, choose text or image watermark, adjust opacity, size, and rotation, then download your watermarked file instantly.
Can I add an image watermark like a logo?
Yes. You can upload a PNG, JPG, or WEBP image and place it as a watermark across all pages.
Will the watermark appear on every page?
Yes, the watermark is automatically applied to all pages in your PDF.
Can I control transparency and position?
You can adjust opacity, size, and rotation to precisely control how the watermark appears.
Is this PDF watermark tool free?
Yes, the tool is completely free to use with no hidden limits.
Are my PDF files secure?
Yes. Files are processed locally in your browser and are not uploaded to any server.
Can I add a confidential or draft stamp?
Yes. You can quickly add text like 'CONFIDENTIAL', 'DRAFT', or 'SAMPLE' as a watermark.
Does watermarking reduce PDF quality?
No, the original content remains unchanged. The watermark is added as a separate overlay layer.
Does the Watermark PDF work offline?
Yes, the Watermark PDF is fully functional offline. Because this tool runs entirely in your browser, no data is ever uploaded to external servers. Once the page is loaded, you can seamlessly continue using it without an active internet connection. You can also install Knicknaks as a Progressive Web App (PWA) for native-like offline access.