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http://insane-on-linux.blogspot.de/2010/01/convert-ps-and-eps-files-into-jpeg.html

You can convert any ps or eps file into a jpeg using ghostscript:

gs -sDEVICE=jpeg -dJPEGQ=100 -dNOPAUSE -dBATCH -dSAFER -r300 -sOutputFile=myfile.jpg myfile.eps