Compress PDF Online - Reduce PDF File Size
Reduce the size of your PDF files without losing quality. Fast, secure, and free online PDF compressor.
or drop files here
Compress PDF Online - Reduce PDF File Size for Everyone
We make it easy to compress pdf online - reduce pdf file size directly in your browser. No software installation is required. Everything happens online, securely and quickly, giving you the best result every time.
- Fast and easy to use
- Secure file processing
- High quality output
- Works on all devices
Smart Compression
Reduce file size while maintaining the best possible quality.
Secure
Files are deleted automatically after 30 minutes.
All Devices
Works on Mac, Windows, Linux, iOS, and Android.

How to Compress PDF Online - Reduce PDF File Size
1.
Select PDF
Upload your file from your computer or drag and drop it here.
2.
Choose Compression
Select the level of compression you need: Extreme, Recommended, or Less.
3.
Download
Get your smaller PDF file instantly.
Compress PDF Online - Reduce PDF File Size FAQs
Our 'Recommended' setting is engineered to reduce file size significantly while keeping the visual quality identical for viewing on screens. For the 'Extreme' compression (maximum reduction), you might see a slight reduction in image sharpness, but text will remain crisp.
Use 'Recommended' for most files (resumes, reports). Use 'Extreme' if you need the absolute smallest size for emailing and don't require high-resolution printing. Use 'Less' if high-quality print output is your priority.
It varies by file content. Heavy image-based PDFs can often be reduced by 70-90%. Text-heavy files might only see a 10-20% reduction since text is already efficient.
No, encryption prevents us from analyzing and re-processing the file stream. Please unlock the PDF first using our Unlock tool, then upload it for compression.
No. Compression only optimizes fonts, images, and structure. The embedded text layer remains intact and searchable.
We offer generous limits for free users. You can compress multiple files in a row, though extremely large files (over 100MB) might take longer to upload and process.