Autocad 2010
enabled users to refine 3D surfaces into more complex, curved geometries. PDF Integration
If you are a student or a new user wondering what was actually new in 2010, the answer is simple: Autocad 2010
AutoCAD 2010 transformed the reference workflow. For the first time, you could attach a (not just import vector data). This meant: enabled users to refine 3D surfaces into more
Customization and automation
: For the first time, users could attach PDF files as underlays to their drawings. This version also improved the quality of PDF exports, making them more versatile for sharing. This meant: Customization and automation : For the
: New free-form design tools made it easier to create complex 3D shapes and smooth surfaces. This version took 3D capabilities much more seriously than previous iterations. Enhanced PDF Support
Autodesk no longer offers 2010 for sale. It is considered (though license transfer is illegal without a transfer letter). If you have a legitimate license from 2009-2010: