You can run the Adobe Acrobat installer for Palm found on their website. Not only will you get the Classic compatible AcroDesktop, but it will allow your OSX Adobe Acrobat Reader to convert to tagged .pdf and send it to your Palm. I found the AcroDesktop to be glitchy but when I "Send to Palm" under Acrobat Reader for OSX it works like a champ (even though Acro reader has a bunch of bugs itself).