How to reduce JPG to PDF size
Lower file size while preserving enough quality for reading, printing, or sharing.
Fastest way to shrink PDF output
- Set DPI to 120 to 144 for email and messaging use cases.
- Set Compression around 0.65 to 0.75.
- Use Fit instead of Fill to avoid unnecessary oversized crops.
- Enable Strip metadata.
- If still large, split into two PDFs by section.
Target profiles
Share by email (smallest practical)
- DPI: 120
- Compression: 0.65
- Images per page: 1 to 2
Office review (balanced)
- DPI: 144 to 180
- Compression: 0.7 to 0.8
- Images per page: 1
Print quality (larger files)
- DPI: 240 to 300
- Compression: 0.8 to 0.9
- Images per page: 1
Why PDF size gets huge
The most common cause is very high-resolution phone photos combined with high DPI output. Reducing DPI has the biggest impact, then compression.