How to use this tool
- Choose an image-heavy PDF.
- Set DPI and JPEG quality.
- Compress and review the before-and-after sizes.
Optimize PDF
Compress PDF Pro
Use finer resolution and quality controls for image-heavy PDFs.
- ✓Local processing
- ✓No sign-up
- ✓Files never uploaded
Local processing
Compress PDF Pro
No sign-upFiles never uploaded
Drop files here or choose from your deviceUp to 50 MB per file
Selected files
Files never uploaded
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Your result
What this tool does
Set output DPI and JPEG quality directly. A live estimate explains the trade-off, and the original is returned if the new file is not smaller.
Your files stay with youDocument processing runs locally in your browser. We do not receive, store or inspect the files you select.
FAQ
Frequently asked questions
Which settings should I start with?
150 DPI and 70% JPEG quality are a practical balance for screen use.