when configuring a postscript plotter, what is the difference between the various level selections?
I guess it is something like PDF files created with version 3,4 5 or 6.. The lower you get, the more compatible you are.
Try http://usa.autodesk.com/adsk/servlet/ps/item?siteID=123112&id=2897341&linkID=2475323 It covers 1, 1.5 & 2.