100% Local Browser ProcessingFree
🇨🇭 Swiss Engineering

100% Local PDF Compression in Your Browser

Compress PDFs instantly with WebAssembly technology. No uploads, no servers - your files never leave your device.

Trusted by thousands of professionals worldwide for PDF compression

Fast, secure, and completely private PDF compression

By using our service, you agree to our Privacy Policy and Terms of Service

100% Private

Your files never leave your computer - guaranteed privacy

Efficient Processing

No upload needed - compress directly on your device

Professional Quality

Reduce file size while keeping document quality

Enterprise Solutions for PDF Optimization

Powerful features designed for business needs

Advanced Compression

Smart algorithms reduce file size by up to 90% while preserving document quality and searchability.

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Enterprise Security

Zero-trust architecture: files never leave your device. No server uploads means no data breaches, complete GDPR compliance, and maximum privacy.

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Quality Preservation

Maintain document quality and readability while significantly reducing file size.

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Frequently Asked Questions

Everything you need to know about our PDF compression service

Free Browser-Based Local PDF Compression Tool

CompressMyPDF uses WebAssembly to compress PDFs entirely in your browser. No uploads, no servers, no privacy risks. Perfect for professionals, students, and anyone who needs to compress sensitive PDF documents that must never leave their device.

  • Compress PDF files up to 500MB for free
  • Maintain document quality and formatting
  • No registration required
  • Instant PDF compression online

Why Choose Our PDF Compressor?

Our advanced PDF compression algorithm intelligently reduces file size while preserving the quality of text, images, and formatting. Ideal for:

  • Reducing PDF size for email attachments
  • Optimizing documents for web uploads
  • Saving storage space on your devices
  • Compressing scanned PDF documents
CompressMyPDF - 100% Local Browser-Based PDF Compression