Compress PDF File Size Online
Instantly compress PDF files to COMPRESSED format locally in your browser. 100% private, no uploads.
How to Use this Tool
Drag and drop your oversized PDF file into the drop container.
Allow the PDF optimizer to downsample heavy graphics and strip metadata.
Save your compact PDF directly to your device.
100% Private, Client-Side Processing
Unlike other conversion portals, Drafto performs all calculations locally on your computer's browser engine using high-performance WebAssembly and JavaScript APIs. This means your files never leave your device. There is no background upload stream, making this converter completely compliant with strict workspace privacy rules, HIPAA standards, and corporate data security policies.
About the PDF Compressor utility
This tool is part of Drafto's local productivity collection. It is built to resolve day-to-day conversion bottlenecks, file format mismatches, and size limitations quickly, securely, and completely free of charge.
Frequently Asked Questions
No. The formatting, vector coordinates, fonts, and text lines remain untouched. Only large embedded raster images are optimized to reduce size.
No. Drafto is completely free. There are no hourly or daily conversion limits, no file size caps, and no registration forms to complete.