…
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asymptote
barcode
cfdg
cuneiform
dcraw
dmtx
enblend-enfuse
exif
exiftags
gifsicle
glxinfo
gnuplot
graphviz
jhead
netpbm
optipng
panomatic
pdfread
pfstools
ploticus
plotutils
pngnq
povray
pstoedit
qrdecode
qrencode
scrot
transfig
welkin