Defining projections in AutoCAD

ArcGIS Image Server clients can define projections using ArcGIS projection (*.prj) files. These .prj files are available if ArcGIS is installed on your computer and can be found in the ArcGIS home folder. To change the projection of an image service layer in AutoCAD, you need to change the Spatial Reference System setting on the Service Properties dialog box. When you change the projection, you may need to click the Zoom To Overview button to view the service layer in the updated projection.