AutoCAD 2012 Dxf Reference February 2011 © 2011 Autodesk, Inc. All Rights Reserved. Except as otherwise permitted by Autodesk, Inc., this publication, or parts thereof, may not be reproduced in any......AutoCAD 2012 DXF Reference February 2011 © 2011 Autodesk, Inc...DWG TrueConvert, DWG TrueView, DXF, Ecotect, Exposure, Extending...