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CAD tip CAD tip # 8729:

Question CAD 
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Q - question

Compare two DWG drawings - identify their differences.

A - answer If you need to compare two DWG files a find their differences - changed, erased and added geometry - you can use the free application Autodesk Design Review (see

This tool employs the DWF/DWFx drawing format and its function "Compare Sheets" allows to highlight in color all differences in the geometry of both drawings.

The workflow of generating DWF from a drawing and comparing two schemes from AutoCAD P&ID is described in a video available in the CAD Video section - see AutoCAD video #12


or on the CAD Studio's YouTube channel:

100% *  CAD 
31.7.2012    24544×   FAQ  
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applies to: AutoCAD · AutoCAD LT · PIant · DWG · DWF/Design Review ·

See also:
Tip 12184:Overview of CAD formats supported in Inventor 2020 (import/export/AnyCAD).
Tip 12105:Select the smallest DWG object - MinOf utility.
Tip 12049:AutoCAD display (status bar) jumps and flickers while zooming.
Tip 11469:Why you should not use the DEFPOINTS layer to draw geometry?
Tip 10804:What features are not available in the 32-bit version of AutoCAD 2017 and 2016?

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