Autodesk SketchBook Designer 2012 Design software with a new approach to digital sketching and illustration Hybrid paint and vector environment allows for flexibility and precision Simultaneously modify paint and vector layers; produce detailed artwork with ease Freely explore line-work; optimized for both pen-based (freehand) and mouse interactions Streamlined and intuitive UI; does not include AutoCAD Add-in Autodesk software purchased in North America can only be registered and used in North America.