PDF Compressor
Reduce PDF file size
PDF Compressor
Reduce PDF file size for easier sharing and storage. 100% private - processing in your browser only.
Key Features & Highlights
Compress PDFs by removing metadata and optimizing structure.
All compression in browser. Files never uploaded to servers.
See original vs compressed size with percentage saved.
Compress large PDFs quickly using pdf-lib optimization.
All text, images and layout preserved - only metadata removed.
Get compressed PDF ready for email, upload or storage.
How to Use PDF Compressor
Upload PDF
Select PDF file you want to compress.
See Original Size
File size displayed for comparison after compression.
Click Compress
Process removes metadata and optimizes structure.
Download Compressed
Save the smaller PDF with size savings shown.
Frequently Asked Questions
How much size reduction?
Usually 5-30% reduction from metadata removal. For heavy compression with image optimization, use dedicated tools like Ghostscript or Adobe Acrobat.
Does it reduce image quality?
No - images preserved at original quality. Only PDF metadata and structure optimized. For image compression, use Adobe Acrobat's Reduce File Size feature.
Loses any content?
No! All text, images, forms, annotations preserved. Only removes metadata (author, title, etc.) and optimizes object streams.
Best for email attachments?
Yes! Reduces size for email limits (25MB Gmail, 10MB Outlook). May need to combine with image optimization for heavier reduction.
Alternative compression methods?
For maximum compression: Adobe Acrobat DC, Smallpdf, iLovePDF (online). Ghostscript command line for advanced users. Result usually 40-70% smaller.
PDF version affected?
No, PDF version and compatibility preserved. Compressed PDF opens in same readers as original. No downgrade in features.