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Compress PDF — Documentation
Reduce the file size of your PDF documents while maintaining quality.
Overview
Compress PDF is a free online tool that lets you reduce the file size of your pdf documents while maintaining quality. All processing happens right in your browser — your files never leave your device.
No cost
Free
Client-side
Privacy
Not required
Signup
Quick Start
1
Upload a PDF and the tool will optimize images and strip metadata to reduce file size while keeping quality.
Tips & Best Practices
Image-heavy PDFs see the biggest size reductions (50-80%).
Text-only PDFs are already compact — expect 10-30% reduction.
Frequently Asked Questions
4 questionsReady to get started?
Open Compress PDF