What file format is primarily used to save AutoCAD drawings?

The primary file format used to save AutoCAD drawings is .dwg. This format is specifically designed for AutoCAD and contains all the information about the drawing, including vector graphics, metadata, and design data. The .dwg format ensures that all elements of a drawing, such as layers, objects, and text, are preserved accurately, allowing for proper editing and manipulation within the AutoCAD environment.

While .dxf (Drawing Exchange Format) is also associated with AutoCAD, it is mainly used for data interoperability, allowing different CAD applications to exchange drawings. It serves as a way to share drawings between various software programs but is not the main format used for saving projects directly within AutoCAD.

Formats like .pdf are primarily used for sharing or printing documents and are not intended for editing CAD drawings, and .jpg is an image file format unsuitable for CAD data storage or drawing features. Therefore, the .dwg file format is essential for users working in AutoCAD as it encompasses all the necessary components of a drawing project.