PDF Compressor
Professional-grade PDF compression with advanced image resampling, grayscale conversion, and quality presets—all running locally in your browser.
One-time cache
Upload PDF
Drop your PDF here or click to browse
Advanced image compression • Maximum file size: 100MB
Supports: PDF up to 100MB
Quality Presets
Choose a preset to auto-configure quality, DPI, and processing rules. Adjust any control to switch into custom mode.
Advanced Image Settings
Image Processing Options
Advanced Compression
Upload a PDF file to begin advanced compression
Advanced Features
Why this tool
Advanced PDF Compression Technology
Professional-grade image processing and optimization
Advanced image processing
Each embedded image is extracted and optimized with intelligent DPI reduction, PNG to JPEG conversion, and progressive encoding tuned to your preset.
Privacy & performance
Runs entirely inside your browser via Ghostscript and Canvas APIs so sensitive PDFs never leave your device while still delivering pro-grade compression.
Detailed analytics
Live stage progress and post-run stats quantify compression ratios, savings, and image optimizations applied for every file you process.