Upload PDF File
Drag and drop your PDF file here or click to select
Supports: PDF files • Reduce file size • Optimize for web
Privacy First
All PDF compression happens locally in your browser. Your files are never uploaded to any server.
About PDF Compress Tool
Free Online PDF Compressor
Compress PDF files and reduce file size online for free. Optimize large PDFs for web, email, or storage. Shrink PDF documents while maintaining quality. All processing happens securely in your browser.
Key Features
📉 Reduce File Size
- Significantly reduce PDF size
- Multiple compression levels
- Optimize for web and email
- Maintain document quality
- Fast compression
⚙️ Compression Options
- Low - Best quality
- Medium - Balanced (recommended)
- High - Maximum reduction
- Flexible optimization
- Smart compression
⚡ Fast & Easy
- Quick drag and drop
- No registration needed
- Instant compression
- One-click download
- Works in browser
🔐 100% Private
- Client-side processing only
- No server uploads
- Files stay on your device
- Secure and private
- Completely free
How to Compress PDF Files
- Upload PDF: Click "Choose PDF" or drag and drop your PDF file into the upload area.
- Select Level: Choose compression level - Low (best quality), Medium (balanced), or High (maximum reduction).
- Compress: Click "Compress PDF" button to optimize and reduce the file size.
- Review: Check the size reduction percentage and new file size.
- Download: Download your compressed PDF with reduced file size.
Compression Levels Explained
🟢 Low Compression: Preserves highest quality with moderate size reduction. Best for documents with important visuals or when quality is critical.
🟡 Medium Compression (Recommended): Balanced approach offering good quality with significant size reduction. Ideal for most documents and general use.
🔴 High Compression: Maximum file size reduction while maintaining acceptable quality. Perfect for large files that need to be emailed or stored efficiently.
Perfect For
- Email attachments
- Web uploads
- Cloud storage
- Mobile viewing
- Faster downloads
- Bandwidth saving
- Large presentations
- Scanned documents
- Report distribution
- Archive storage
- Portfolio files
- Document sharing
Why Compress PDFs?
- • Email limits: Many email services have attachment size limits (10-25 MB). Compression helps you stay within limits.
- • Faster uploads: Smaller files upload and download much faster, saving time and bandwidth.
- • Storage space: Compressed PDFs take up less disk space, allowing you to store more documents.
- • Better sharing: Smaller files are easier to share via messaging apps, cloud services, and web forms.
- • Mobile friendly: Compressed PDFs load faster on mobile devices with limited bandwidth.
🔒 Your Privacy is Protected
All PDF compression is performed entirely in your web browser using client-side JavaScript. Your PDF files are never uploaded to our servers or any third party. This ensures your documents remain completely private and secure. The compressed PDF is created locally on your device.