I recently wrote a little command line utility called transmute that
converts between various image formats using only the Quartz,
CoreGraphics, and Cocoa APIs. Apple's sips utility can do the same
sort of thing but, oddly, sips doesn't support EPS or PS.
transmute also has some other neat tricks like clipboard support, input
and output from stdin/stdout and setting the page number for conversion
(PDF only). It's available here:
https://bitbucket.org/jdpalmer/transmute
Once installed, you just need to add this to your preferences file:
\converter "ps" "png" "transmute $$i $$o" ""
\converter "eps" "png" "transmute $$i $$o" ""
\converter "pdf" "png" "transmute $$i $$o" ""
And then there's no more dependency on ghostscript or XQuartz for EPS,
PS, and PDF image previews.
Best,
James
