cat c.pic | groff -Tps -P-pletter | convert -trim -crop 0x0 - c.png

http://www.lunabase.org/~faber/Vault/software/grap/
http://www.digipedia.pl/man/grap.1.html
http://www.programmersheaven.com/download/2157/Zipfilelist.aspx
http://www.fileformat.info/format/pictor/
http://en.wikipedia.org/wiki/GRASP_(multimedia_authoring_software)
http://en.wikipedia.org/wiki/PICtor_PIC_image_format

ascii ~/XnView-1.70-x86-unknown-linux2.x-static-fc4 $ ls ~/rottame.dyndns.org/unpack_maxihead.gl/*.pic | while read aa; do ./bin/nconvert -in pic -out png -o "$aa"".png" "$aa"; done

ascii ~/XnView-1.70-x86-unknown-linux2.x-static-fc4 $ ls ~/rottame.dyndns.org/unpack_ontop2.gl/*.pic | while read aa; do ./bin/nconvert -in pic -out png -o "$aa"".png" "$aa"; done