Free PDF Compressor Tool

Reduce PDF file size while maintaining quality
Compress large PDF files for easy sharing and storage
Advanced compression algorithms for optimal results

Drag PDF file here or click to select

Max 100MB per file

How to Compress PDF Files

1
Upload PDF File

Click "Choose File" or drag and drop your PDF document. Our advanced engine analyzes content type for optimal compression strategy.

2
Choose Compression Level

Select from three advanced levels: Low (15-35% reduction), Medium (35-65% reduction), or High (65-85% reduction) with professional-grade algorithms.

3
Smart Processing

6-stage processing pipeline: object optimization, content stream compression, advanced image processing, font subsetting, duplicate removal, and multi-pass finalization.

4
Download Optimized PDF

Get your compressed PDF with detailed statistics showing exact size reduction and quality preservation metrics.

Advanced Compression Technology:
  • Deep Content Analysis: AI-powered detection of images, fonts, and duplicate objects for optimal compression strategy
  • Advanced Image Compression: Progressive JPEG conversion, intelligent downscaling, and PNG palette optimization
  • Font Subsetting: Reduces font file sizes by including only used characters, similar to professional tools
  • Object Stream Optimization: Merges identical objects and removes duplicates for maximum space savings
  • Multi-Pass Processing: Up to 3 compression passes with progressive optimization algorithms
  • Content Stream Compression: Advanced Flate compression with optimal settings for different content types

PDF Compression Features

Smart Compression

Intelligent algorithms optimize file size without losing quality

Multiple Levels

Choose from low, medium, or high compression levels

Fast Processing

Quick compression with real-time progress tracking