[Tioga-users] converting to PNG?

[Taro Sato]

(I'm sorry I've already asked this to Bill)

Does anyone out there know a good (command-line) tool to do the PDF ->
PNG conversion?  Vincent might know, since Ctioga web site has a lot
of nicely anti-aliased PNG images presumably converted from PDF
directly?

I'm preparing tutorials/references for the python version now, to be
put on the web soon...

Thanks!!
Taro