Besides the styles and tables purgeable with native command, BatchPurge offers the opportunity to purge other unreferenced objects: groups, annotative scales, external references (DWG references, raster images, and underlays), obsolete entities (empty text and entity zero length) and DGN complex line styles.

The BPURGE command opens a dialog box to select the types of objects to purge.

Purge the current drawing or launch a batch processing on several files (DWG, DWS, and DWT).

A LISP function: gc-Purge is provided.