DrawCompare compares two DraftSight drawings to see differences between the entities they contain. These differences appear in a third drawing using color codes.
DrawCompare compares the bitmaps of the drawings at the bit level. Only visual changes are captured when you compare the drawings. For example, if you move an annotation 2mm to the left, this change is reflected in the comparison. However, if you change a custom property such as the Description, this is not reflected in the comparison.