Free Online PDF Watermark Tool
Add custom text or image watermarks to your PDF. Control position, size, opacity, and rotation on every page.
Drag & drop your PDF here
or click to browse
PDF files up to 50 MB
How It Works
Upload Your PDF
Drag and drop your PDF file or click to browse. The document opens with a live preview so you can see your watermark in context.
Customize Your Watermark
Enter text or upload an image for the watermark. Adjust the font, size, color, opacity, angle, and position to match your needs.
Download the Watermarked PDF
Apply the watermark to all pages or selected pages and download the result. The watermark is permanently embedded in the file.
Frequently Asked Questions
Yes. You can add a text watermark such as CONFIDENTIAL or DRAFT, or upload a logo or image to use as a watermark. Both options support full customization of size, position, and opacity.
No. You can add watermarks to your PDF immediately without creating an account, providing an email, or signing up for any service.
Yes. Use the opacity slider to make the watermark more transparent or more opaque. This lets you balance visibility of the watermark against readability of the underlying content.
Yes. You can choose to apply the watermark to all pages, odd pages only, even pages only, or a custom selection of specific page numbers.
Yes. The watermarking process runs entirely in your browser. Your PDF is never uploaded to any server, so confidential documents remain private.
Yes. Use the rotation control to angle the watermark diagonally. A 45-degree angle across the center of the page is a common choice for draft or confidential stamps.