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Advanced PDF Compression in Your Browser
Three distinct compression levels with real technical differences. Our browser-based engine optimizes PDFs by re-encoding images, removing metadata, and cleaning document structure—all without uploading your files.
Low Compression
• Preserves all metadata
• Keeps original image quality
• Maintains annotations and forms
• Reduces size by 5-15%
Medium Compression
• Removes metadata
• Compresses images to 124 DPI
• Removes annotations
• Reduces size by 30-60%
High Compression
• Aggressive image compression (72 DPI)
• Removes all metadata
• Flattens forms and annotations
• Reduces size by 80%+
How Browser-Based Compression Works
Image Optimization
- Images are decoded and re-encoded using browser Canvas API
- DPI reduction lowers resolution for screen viewing
- JPEG quality settings from 60% (High) to 100% (Low)
Document Structure
- Object streams compress internal PDF structure
- Metadata removal eliminates document properties
- Unused objects and duplicates are removed
Privacy Guarantee: All processing happens 100% in your browser. No files are uploaded to servers.
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