AutoCAD ® is the world leader in  solutions for 2D-and 3D-design. As more  graphic, 3D modeling to accelerate the  design work and documentation, share  models and develop new ideas. For  AutoCAD available thousands of add-ons  that can satisfy the needs of a wide  range of clients. It's time to design a new  way - while AutoCAD. New features of AutoCAD 2012 is called  a true technological breakthrough, which  will please many millions of users of this  software. AutoCAD 2012 has a parameter, and  now any changes between objects are  supported by user defined relationship.  This significantly reduces the time to  make changes to the projects.  The emergence of tools to work with  arbitrary shapes became possible to  create and analyze the most complex  three-dimensional objects. In addition, 3D  printing is now supported, so it's easier to  get prototypes and physical prototypes. User's Guide explains   AutoCAD concepts, provides  step-by-step procedures and  associated commands, and  includes a glossary with  definitions of AutoCAD terms.  To browse the User's Guide,  use the Contents tab on the  left side of the Help window. Autodesk AutoCAD 2012 Get Information   The User Interface   Start, Organize, and Save a Drawing   Control the Drawing Views Choose a Work Process Before You Begin   Create and Modify Objects   Work with 3D Models   Annotate Drawings Plot and Publish Drawings   Share Data Between Drawings and Applications   Work with Other People and Organizations   Create Realistic Images and Graphics