The System Toolkit is an all-in-one information and maintenance app designed for macOS.

The Smartest PDF Compressor for Mac to Significantly Reduce PDF File Size. PDFs are too large to email or upload? Use this all-new Cisdem PDF Compressor Mac to reduce the size of single or multiple PDF files, maintaining original PDF formats. The preset filter modes and resolution/image quality settings allow you to decide sizes and quality of PDFs. Speed up file sharing and free your disk - Compress the PDFs Now!