CAD is widely used in machinery, electric power, water supply and drainage, construction and other fields. CDR mainly adopts graphic design, creative design, hand-painted effect and so on. Both of them are loss diagrams, and the amplification is not distorted. Second, it can be transformed. The CAD output is in wmf format, which can be imported into CDR.

CAD software is an automatic computer-aided design software, which can be used to draw two-dimensional drawings and basic three-dimensional designs. It can automatically draw drawings without knowing how to program, so it has been widely used all over the world, and can be used in many fields such as civil construction, decoration, industrial drawing, engineering drawing, electronic industry, garment processing and so on.