Hi Jon,
2008/9/17 Jonathan Kulp <address@hidden>:
I'm guessing that one of the netpbm tools will handle transparency, it's
just a matter of figuring out which one. Didn't this come up on a recent
thread? I seem to remember trying it out on something and getting a
transparent background. When I get some time later I'll look into it. It
would be simple enough to add a prompt asking if you'd like a transparent
background, I guess.
>From the command line: -dpixmap-format=pngalpha
In a .ly file: #(ly:set-option 'pixmap-format "pngalpha")
There must be more than this--I don't get any .png file when I use this
option. Only postscript and pdf.