Compress PDF Files

Reduce PDF file size while maintaining quality. Perfect for email attachments, web uploads, and saving storage space.

Select PDF to Compress

Drag and drop your PDF here, or click to browse

Maximum file size: 50MB

Your files are processed locally in your browser. No data is uploaded to our servers.

Why Compress PDF Files?

Common Scenarios

  • • Email Attachments: Meet size limits for email providers
  • • Web Uploads: Faster uploads and downloads
  • • Storage Savings: Save disk space and cloud storage
  • • Faster Sharing: Quick file transfers and sharing
  • • Mobile Friendly: Easier viewing on mobile devices
  • • Bandwidth Optimization: Reduce data usage

Key Benefits

  • • Quality Preserved: Maintain readability and appearance
  • • Significant Reduction: Typically 30-70% size reduction
  • • Fast Processing: Compress files in seconds
  • • No Limits: Process multiple files as needed
  • • Privacy Protected: Files processed locally
  • • Free Tool: No watermarks or registration required

Security & Privacy

Complete Privacy

  • • Local Processing: All compression happens in your browser
  • • No Uploads: Files never leave your device
  • • No Storage: Nothing saved on our servers
  • • Secure Connection: HTTPS encryption throughout
  • • No Registration: Use anonymously without accounts

Performance Features

  • • Fast Compression: Process files in seconds
  • • Large File Support: Handle files up to 50MB
  • • Batch Processing: Compress multiple files
  • • Mobile Compatible: Works on all devices
  • • Offline Capable: Works without internet once loaded

Frequently Asked Questions

How much can PDF compression reduce file size?
PDF compression typically reduces file size by 30-70%, depending on the original content. Documents with many images see the greatest reduction, while text-heavy PDFs may compress less but still achieve significant savings. Our tool optimizes images, removes redundant data, and applies efficient compression algorithms.
Will compression affect PDF quality or readability?
Our compression maintains excellent readability while reducing file size. Text remains crisp and clear, while images are optimized using smart compression that preserves visual quality. You can choose compression levels to balance file size reduction with quality preservation.
What types of PDFs benefit most from compression?
PDFs with high-resolution images, scanned documents, presentations with graphics, and files exported from design software benefit most. Academic papers with many figures, marketing materials, and photo-heavy reports typically see 50-70% size reduction.
Can I compress password-protected PDFs?
No, password-protected PDFs must be unlocked before compression. This security measure ensures only authorized users can modify protected documents. Remove the password protection first, then compress your PDF, and reapply password protection if needed.
What's the maximum file size I can compress?
You can compress PDF files up to 50MB in size. Since processing happens in your browser, larger files may take longer depending on your device's capabilities. For very large files, consider splitting them first, compressing separately, then merging if needed.
How does compression work and is it reversible?
Compression removes redundant data, optimizes images, and applies efficient encoding. The process is not reversible - you cannot restore the original file size. However, the compressed PDF retains all content and functionality while being much smaller for storage and sharing.