Upload PDF to Compress
Drop your PDF file here or click to browse
Files never leave your device!
Reduce your PDF file size while maintaining quality. Works 100% in your browser — nothing uploaded!
Drop your PDF file here or click to browse
Files never leave your device!
3 simple steps — done in seconds
Select the PDF file you want to compress from your device.
Pick compression level: Low, Medium or Maximum.
Download your smaller, optimized PDF instantly.
Everything you need to know about PDF compression
Our compression renders each page and re-encodes images at optimized quality. With Low compression, quality difference is barely visible. Maximum compression may show slight quality reduction on very detailed images — ideal for email/web sharing.
Typically 20–70% reduction depending on the PDF content and chosen level. PDFs with lots of metadata, duplicate objects and unoptimized structure compress the most.
100% secure! All processing happens locally in your browser. Your files are never uploaded to any server — complete privacy guaranteed.
We attempt to process protected PDFs, but some heavily encrypted files may not be compressible without the password. Try removing the password first using our Unlock PDF tool.
Medium is recommended for most use cases — great balance between file size reduction and quality. Use Low for print-quality documents and Maximum for emails or web sharing.