How to Compress PDF Files Online?

Our Free PDF Compressor allows you to reduce file size instantly directly in your browser. Unlike other tools, your files are never uploaded to a server, ensuring 100% privacy.

  1. Drag and drop your PDF file into the box above.
  2. Choose your compression level (Low, Medium, or High).
  3. Wait for the secure client-side processing to finish.
  4. Download your optimized PDF instantly.

Why Use Our Tool?

  • ✅ Secure: Files never leave your device.
  • ✅ Fast: Powered by WebAssembly.
  • ✅ Free: Basic compression is free forever.

Compression Levels

Low: Lossless optimization. Retains slightly reduced quality.
Medium: Balanced compression for easier sharing.
High (Pro): Maximum reduction using smart rasterization.

Compress PDF files without losing quality

Optimize your documents locally. Private, fast, and secure.

Drag & Drop PDF here

or click to browse files