[matplotlib-devel] Comparing pdf output in tests

I am thinking about adding pdf comparison ability to compare_images. One
simple way to do this would be to convert pdf files to pngs using
Ghostscript: if we store reference pdf files, and both the reference
file and the result of the test are converted using with exactly the
same version of gs, there should be no font-rendering or antialiasing
mismatches.

Can we assume that all test computers will have some version of
Ghostscript installed and callable as "gs"?

-- 
Jouni K. Seppänen
http://www.iki.fi/jks