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Watermark PDF

Stamp your PDF documents with custom text or image watermarks. Control transparency, angle, and positioning with live preview.

Drag & Drop a PDF here

or click to browse a file from your computer

Your document is processed locally in your browser and never uploaded

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Add Watermarks to PDF Online Free

Protect your intellectual property, brand identity, and sensitive documents by stamping custom text or image watermarks directly onto your PDF pages. Choose custom opacity, fonts, colors, rotation angles, and placement positions with immediate real-time visual feedback.

How to Watermark a PDF Online

  1. Select your PDF: Drag and drop your file into the box above.
  2. Choose watermark type: Select Text or upload a company Logo / Image (PNG/JPG).
  3. Customize appearance: Adjust text, font size, color, transparency, rotation, and placement grid.
  4. Download your watermarked PDF: Click Add Watermark & Download to generate your branded document instantly.

Complete Browser Privacy

Your documents are never uploaded to any remote server. The entire watermarking process takes place in your local browser engine using high-performance WebAssembly/JavaScript rendering.

Frequently Asked Questions

Can I watermark only specific pages in the PDF?
Yes! You can choose to apply the watermark to All Pages, Skip the First Page (Cover), or enter a custom range such as 1-3, 5, 8-10.
Can I use transparent PNG logos as watermarks?
Yes. Transparent PNG images retain full alpha channel transparency, and you can further tweak opacity and scale sliders to achieve the perfect watermark.