It is illegal to give out the serial number for AutoCAD 2004 for free. Users can purchase the current version of AutoCAD at Autodesk.com or download a free trial version. AutoCAD is also sold in stores that carry software and electronics.
Users can download free 30-day trial versions of AutoCAD and other Autodesk software at Autodesk.com or purchase the full versions. Users can also purchase monthly, quarterly and annual subscriptions to Autodesk software instead of purchasing the full versions. Autodesk also offers free educational versions of its software to students and teachers, which can be obtained by registering for free at Autodesk.com.