CAD tip # 8729:

Question

CAD
% platform category

Compare two DWG drawings - identify their differences.

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 Download).

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

P&ID-compare

or on the CAD Studio's YouTube channel:

ACADLTPIantDWGDWF

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31.7.2012 26057× FAQ

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applies to: AutoCAD · AutoCAD LT · PIant · DWG · DWF/Design Review ·

See also:
Tip 13082:	PDF published from AutoCAD shows blurred lines.
Tip 12766:	Lines with a single grip, incorrect osnaps, intersections, offsets, hatches - CheckLarge
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.

Selected tip: Command: MOVE, Error: internal error: !scandr.cpp@1117:eHadMultipleReaders

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