To begin, launch the application and select DMG file which is to be extracted. Unlike dmg2iso, it comes with simple GUI-based interface to quickly extract files.
The application is not only an attempt to port functions of dmgtoiso utility but adds a set features which one might require while extracting or converting dmg contained content. According to the developer, it is capable of manipulating CUDIFDiskImage based disk images while all other AES-128 encrypted disk images can also be handled. DMGExtractor is a Java-based application for extracting and converting Mac OS X dmg (Disk Image) file content into widely used image file formats, such as, BIN, ISO, and IMG.