Currently on my workstation is installed OSX 10.7.2 – no problems with PD4ML at all.

Just noticed:

> I’ve been trying to run the command-line pd4ml class but whatever I do I get:
> java.io.IOException: Cannot run program “/Applications/Preview.app”: error=13, Permission denied

Pd4Cmd does not try to run Preview.app. Probably you are trying to convert with PD4Browser. Run Pd4Cmd instead: