PDF Compression Checklist

1) Use case
- Screen viewing: 100-150 DPI
- Archive: 150-200 DPI
- Print: 300 DPI

2) Image settings
- Convert to JPEG inside PDF when possible
- Use grayscale for scanned text

3) Metadata cleanup
- Remove unused fonts and color profiles
- Remove embedded previews

4) Final verification
- Check legibility on mobile and desktop
- Confirm file size limits before upload