You're looking for a paper size configuration for AutoCAD 2012 Portable. Here are the steps to set up a proper paper size:
AutoCAD 2012 Portable represents a niche, unofficial modification of Autodesk's 26th major release, designed to run from a USB drive or external device without a traditional installation. While not an official product from autocad 2012 portable
Conclusion
Even in a stripped-down portable format, the core engine of AutoCAD 2012 brought significant productivity boosts: Associative Arrays: You're looking for a paper size configuration for
: Many "Portable AutoCAD" versions found online are modified by third parties. These can contain malware or be unstable, leading to frequent crashes or corrupted .dwg files. Missing Features Familiar Interface : The interface is identical to