AutoCAD is a software application for computer-aided design (CAD) and drafting. The software supports both 2D and 3D formats. The native file format of AutoCAD is .dwg. This and, to a lesser extent, its interchange file format DXF, have become de facto, if proprietary, standards for CAD data interoperability. AutoCAD supports a number of APIs for customization and automation. Associative Array, Model Documentation.

“Capture design concepts with AutoCAD LT software for PC. Create precise 2D technical drawings that you can easily edit, repurpose and share. Increase productivity: With a consistent focus on drafting productivity and intuitive interaction, AutoCAD LT is built for efficient design documentation. Create simple or complex drawings from standard shapes such as lines, arcs, and circles. Modify existing geometry with commands such as stretch,...”