Show Differences of Drawings
Compare the active drawing to another saved drawing.
- Objects that are only found in the active drawing are shown in green.
 - Objects that are found in the drawing saved in the file, but not in the active one are shown in red.
 - Shared objects in the same location in both drawings are shown in light grey.
 

Compare a drawing saved to a file to the active drawing.
- First, open the drawing to which you want to compare in the working window.
 - Select View | Comparison | 
 File. - Select the file, and click Open.
 - The Compare dialog box opens and illustrates the additions and deletions in the drawing.
- Inserted - Objects only in the active drawing.
 - Removed - Objects in the drawing saved to a file, but not in the active one.
 - If you select 
 Keep Markings, the markings will remain on screen even if you click OK. 
 - Select View | Comparison| 
 Stop. Markings will be removed. 
