PDF Compress is a free browser-based tool that reduces your PDF file size instantly. Upload your PDF, choose from Low, Medium, or High compression presets — or enter a precise target file size — and download your optimized file in seconds.
Drag & drop your PDF here
or click to browse your local files
Analyzing Document
Inspecting structural density, embedded image profiles, and metadata to build custom presets...
Original Document Details
Choose from balanced levels analyzed and optimized specifically for this PDF's structures.
Low Compression (Max Quality)
Estimating...Excellent resolution (150 DPI) & 85% image quality. Ideal for printing and preservation.
Medium Compression
RecommendedStandard density (100 DPI) & 70% image quality. Optimized for email sending and online uploads.
High Compression (Max Savings)
Estimating...Low density (75 DPI) & 45% image quality. Text remains readable, but images will have visible degradation.
Squeezing Document...
Initializing PDF compressor libraries...
Compression Complete!
Your newly compressed PDF is ready for high-speed download.
File Size Optimization Report
Ready for email upload (Limits: 25MB) and speedy sharing.
Quality Sample Comparison
Look at the page cover compression quality below. Click and hold on the canvas to inspect the original high-resolution version.
Interactive Inspector
We render a fast preview here at your chosen compression. Press and hold down your mouse/finger on the preview page above to toggle the rendering quality and check text crispness.