[magick-developers] Default settings for convert

[duc.sequere.aut.de.via.decede at imagemagick.org]

>   Do you have an idea what is so different for .png and .ppm file generation

Its an artifact of converting an image with an alpha channel (infile.eps)
to one that does not support transparency (test.ppm). To get the results
you desire, use

      convert infile.eps -flatten infile.ppm


even better

      convert -density 400 infile.eps -resize 25% -flatten infile.ppm