I hope this helps. I installed a large format postscript printer "ie. Xerox 8855 PS" or "HP Design Jet 8000 PS" and set them to print to file. Then I downloaded Ghostscript and GSView link = http://www.cs.wisc.edu/~ghost/ . Open GSView and set the custom paper size "72 x inches" or choose one of the default sizes, Media Rotation, and Paper rotation. you should be able to open the Postscript print file and use GSView to Convert the file to PDF.
I find this works better than using Acrobat, go figure.
