Autodesk Autocad — 2010 -64-bit-

Significantly improved PDF support, allowing users to export drawings to PDF with better quality and smaller file sizes, as well as use PDF files as underlays.

Autodesk AutoCAD 2010 represents a landmark release in the history of computer-aided design (CAD) software. Released in early 2009, this version introduced groundbreaking parametric drawing tools, a redesigned user interface, and expanded native 64-bit architecture support. For many engineering, architectural, and design firms, the 64-bit edition of AutoCAD 2010 became an industry workhorse that stabilized workflows for large-scale, memory-intensive projects. The Significance of the 64-Bit Architecture Autodesk AutoCAD 2010 -64-BIT-

If that works for you, please choose a focus area, for example: Significantly improved PDF support, allowing users to export