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PDF Watermark

Add text or image watermarks to PDF documents

Upload PDF

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Drop a PDF file here or click to browse

Supports PDF files up to 50 MB

Tips

Use "Tile" position for maximum coverage - ideal for legal and confidential documents
Lower opacity (10-20%) keeps content readable while the watermark stays visible
Diagonal rotation (-45 degrees) is the industry standard for document watermarks
Switch to Image mode to add your company logo, signature, or custom stamp
PNG images with transparency work best for logo watermarks
All processing happens in your browser - your PDF never leaves your device

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What is PDF Watermark?

Add professional watermarks to PDF documents directly in your browser.

Supports both text watermarks (CONFIDENTIAL, DRAFT, SAMPLE, or any custom text) and image watermarks (company logos, stamps, signatures in PNG or JPG format). Choose from three font families (Helvetica, Times Roman, Courier) and place watermarks above or below page content. Configure font size, opacity, rotation angle, color, scale, and position. Supports single placement (center, corners) or tiled repeat pattern for full-page coverage. Apply watermarks to all pages, first page, last page, or a custom page range. Includes industry-standard presets for common use cases. All processing runs client-side - your PDF files never leave your device.

How to Use PDF Watermark

1Upload a PDF file by dragging and dropping or clicking the upload area
2Choose Text mode for typed watermarks or Image mode for logos, stamps, and signatures
3Adjust opacity, rotation, position, and other settings to match your needs
4Choose which pages to watermark - all, first, last, or a custom range
5Click Apply Watermark, preview the result, and download the watermarked PDF

Frequently Asked Questions

Upload your PDF, choose between text or image mode, pick a font (Helvetica, Times Roman, or Courier), set layer placement (above or below content), adjust opacity, rotation, and position, then click Apply Watermark. The tool uses pdf-lib to embed the watermark directly into the PDF structure. Everything runs in your browser - no server upload required.

Yes. Switch to Image / Logo mode and upload a PNG or JPG file. PNG images with transparency work best. You can adjust the scale, opacity, rotation, and position of the image watermark.

Yes. Choose from All Pages, First Page Only, Last Page Only, or Custom Range. With custom range you can specify exact pages and ranges like 1-3, 5, 7-10.

The Tile position repeats your watermark across the entire page in a grid pattern. This works for both text and image watermarks. It is the standard approach for legal and confidential documents where you need full-page coverage.

No. All processing happens entirely in your browser using JavaScript. Your PDF file never leaves your device, making it safe for sensitive and confidential documents.

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What is PDF Watermark?

Add professional watermarks to PDF documents directly in your browser.

How to Use PDF Watermark

1Upload a PDF file by dragging and dropping or clicking the upload area

2Choose Text mode for typed watermarks or Image mode for logos, stamps, and signatures

3Adjust opacity, rotation, position, and other settings to match your needs

4Choose which pages to watermark - all, first, last, or a custom range

5Click Apply Watermark, preview the result, and download the watermarked PDF

Frequently Asked Questions

Yes. Switch to Image / Logo mode and upload a PNG or JPG file. PNG images with transparency work best. You can adjust the scale, opacity, rotation, and position of the image watermark.

Yes. Choose from All Pages, First Page Only, Last Page Only, or Custom Range. With custom range you can specify exact pages and ranges like 1-3, 5, 7-10.

No. All processing happens entirely in your browser using JavaScript. Your PDF file never leaves your device, making it safe for sensitive and confidential documents.