All Tools
PDF Tools
Compress PDF
Reduce PDF file size while maintaining quality. Choose from multiple compression levels for optimal results.
Private
Instant
No signup
Drag & drop files here
or click to browse • paste images (Ctrl+V)
Up to 5 files, max 50MB each
Smart AnalysisContent-aware compression
Advanced ControlsFine-tune settings
Quality PreviewBefore/after comparison
Frequently Asked Questions
How much can I compress PDFs?
Compression depends on the PDF content. Text-heavy PDFs compress less than image-heavy ones. Typical savings: 20-50%.
Does compression affect quality?
Yes, higher compression reduces quality. Choose based on your needs - low compression for quality, maximum for smallest files.
What types of compression are used?
We optimize PDF structure and object streams. For best results with images, consider compressing images separately first.
Are my files uploaded to a server?
No. All processing happens in your browser using pdf-lib. Your files never leave your device.