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Add Watermark

Add custom text watermarks to your PDF documents. Protect your work, mark documents as confidential, draft, or add copyright notices. Customize text, position, opacity, rotation, and color.

🔒 100% Secure & Private

Your files never leave your device. All PDF processing happens locally in your browser using WebAssembly technology.

No File Upload to Server
All Processing in Your Browser
0 MB Data Used
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Upload Files

Click to browse or drag and drop files here

How to Add Watermark

  1. 1Upload your PDF file
  2. 2Enter watermark text (e.g., CONFIDENTIAL, DRAFT, © 2024)
  3. 3Choose position (center, diagonal, top, bottom)
  4. 4Adjust opacity, rotation, font size, and color
  5. 5Click "Add Watermark"
  6. 6Download your watermarked PDF

Frequently Asked Questions