Compress PDF — Reduce File Size up to 80%, Free Online
Shrink PDF files by up to 80% while keeping them readable. Fast processing, no watermarks, no file limits. Works in your browser — your files never leave your device.
Key Features
Auto-deletion of files within 1 hour
HTTPS encryption for transfers
No watermarks added
No account required
Adjustable compression levels
How It Works
Compression optimizes embedded images and removes unnecessary metadata
Uses pdf-lib for PDF structure optimization
Multiple compression levels available: light, medium, and maximum
Text content quality is preserved across all compression levels
Files are processed on server and deleted within 1 hour
Frequently Asked Questions
How much can a PDF be compressed?
Compression depends on the content. PDFs with large images can often be reduced by 50-80%. Text-heavy PDFs with few images may see smaller reductions (10-30%).
Does compression reduce quality?
Text remains sharp at all compression levels. Image quality may decrease slightly at higher compression levels. Use the medium setting for a good balance of size and quality.
Is there a file size limit?
Free users can compress PDFs up to 25MB. This covers most standard documents and presentations.