Compress PDF Files Online
Reduce PDF file size while maintaining quality. Perfect for email attachments and uploads. 100% free and private — your files never leave your browser.
100% Private
Files are processed entirely in your browser. Nothing is uploaded to any server.
Lightning Fast
No upload or download wait times. Processing happens instantly on your device.
Works Everywhere
Use on any device with a modern browser. No software installation needed.
How to Compress a PDF
Upload
Drop or select the PDF file you want to compress.
Choose quality
Select Low, Medium, or High compression depending on your needs.
Compress
Click the button and download your smaller PDF file.
Frequently Asked Questions
How much can the file size be reduced?▼
Results vary depending on content. Image-heavy PDFs can be reduced by 50-80%. Text-heavy PDFs may see smaller reductions since text is already compact.
Will compression affect text quality?▼
The compression works by re-rendering pages as optimized images. For best text quality, use "Low" compression. For maximum file size reduction, use "High".