The only way you might be able to get a soft copy is if you can get a hard copy, go to e.g. a printer, have him run it through a scanner, which will then spit it out as a pdf.
Aren't there copyright issues about doing that sort of thing? I guess if you have AOPA's permission it'd be OK, but I think commercial printers are wary of infringing copyright.
Why not just ring AOPA up and ask them?
TheOddOne