How We Optimize PDFs
Our PDF optimization system uses advanced compression techniques to reduce file sizes significantly while maintaining quality and compatibility.
Image Optimization
Images typically account for the majority of PDF file size. We apply intelligent compression to images while preserving visual quality.
- Intelligent resolution adjustment
- JPEG quality optimization
- PNG to JPEG conversion when appropriate
- Duplicate image removal
Font Subsetting
Embedded fonts can significantly increase file size. We extract only the characters actually used in the document, dramatically reducing font overhead.
Stream Compression
We apply optimal compression algorithms to content streams, reducing overall document size without affecting rendering quality.
- Flate compression optimization
- Object stream compression
- Linearization for fast web viewing
Metadata Cleanup
We remove unnecessary metadata and embedded data that doesn't affect document display, further reducing file size.
Quality Preservation
All our optimization techniques are non-destructive. We preserve:
- Text clarity and searchability
- Document structure and navigation
- Interactive elements (forms, links)
- Visual appearance and layout
Expected Results
Typical size reductions:
- Image-heavy PDFs: 50-80% reduction
- Text-based PDFs: 20-40% reduction
- Mixed content PDFs: 40-60% reduction