How to Choose the Right PDF Compression Level
Compression levels at a glance
- Low: Minimal file reduction; best for printing or archiving where quality matters.
- Medium: Balanced quality and size; ideal for email and general digital sharing.
- High: Aggressive size reduction; suitable for web uploads and drafts where some quality tradeoff is acceptable.
How to choose
- Identify the primary purpose print, email, web, or archive.
- Assess content type text-only compresses well; image-heavy needs gentler settings.
- Test and compare compress a copy at medium, inspect; if acceptable, proceed. Otherwise try low.
- Keep the original always retain uncompressed source for future needs.
Quick recommendations
- Contracts, legal docs: Low
- Presentations, reports: Medium (unless image fidelity is critical)
- Web samples, drafts: High
Conclusion
Choosing compression level is a pragmatic trade-off. Start with medium for general use, test results, and escalate to low for print or high for strict size limits. Use tools like PDF Lab's Compress to try multiple levels quickly.