Epspdf is an ps/eps/pdf converter which can be used both from the
command-line and as a GUI application.

Epspdf-extra contains:

- a Windows installer epspdf.x.x.x.exe which also includes a minimal
  subset of Ruby/Tk. It replaces the standard epspdf package.

- epspdftk.x.x.x.dmg.gz: contains epspdftk.app: the Ruby script
  dressed up as an `app' with the help of a snippet of
  AppleScript. Doubleclick the file once to expand to a disk image,
  double-click again to mount, then drag epspdftk[.app] to the
  Applications folder. The disk image also contains a directory with
  documentation. This version created and tested under
  Leopard. WARNING: the GUI interface will not work on Snow Leopard
  with the built-in Ruby.