Compress PDF Online Free
Reduce the file size of your PDF documents without compromising quality. Our free PDF compressor uses intelligent compression algorithms to shrink your files while maintaining readability. Perfect for email attachments, web uploads, and meeting file size requirements.
How to Compress PDF
Upload Your PDF
Select or drag your PDF file into the compressor. No file size limits.
Choose Compression Level
Select from Maximum, Recommended, or Minimum compression. Higher compression reduces file size more.
Compress
Click Compress and wait. Our algorithm optimizes images, fonts, and removes unnecessary metadata.
Download
Download your compressed PDF. The quality difference is usually imperceptible.
Why Choose Our Compress PDF ?
Reduce PDF size by up to 80%
Intelligent image re-compression preserves visual quality
Removes duplicate fonts and unnecessary metadata
Multiple compression levels to choose from
Batch compression support
Perfect for meeting email attachment size limits
About Compress PDF
Reduce the file size of your PDF documents without compromising quality. Our free PDF compressor uses intelligent compression algorithms to shrink your files while maintaining readability. Perfect for email attachments, web uploads, and meeting file size requirements.
Our PDF compressor employs multiple optimization techniques including image downsampling, font subsetting, object stream compression, and duplicate content removal. The tool analyzes each page individually, applying different compression strategies based on content type. Vector graphics receive lossless compression while photographs are intelligently re-encoded to reduce file size without visible quality loss.
Frequently Asked Questions
Compression results vary depending on the content. Text-heavy PDFs may reduce by 10-30%, while image-heavy PDFs can shrink by 50-80%.
At Recommended compression, the quality difference is virtually imperceptible. Maximum compression may show slight quality reduction in images.
Yes. PDF compression is completely free with no file size or quantity limits.