third-party/leptonica/prog/pdf2png-color
#!/bin/bash
# pdf2png-color
#
# Rasterizes a PDF file, saving a set of 24 bpp RGB png images
#
# input: PDF
# root name of output files
# output: 24 bpp RGB png files for each page
#
# N.B. Requires ghostscript
scriptname=${0##*/}
if test $# != 2
then
echo "usage: " $scriptname " inpdffile outpngroot"
exit -1
fi
inpdffile=$1
outpngroot=$2
# strip off directory and suffix parts of $1 to use in other names
basename=${1##*/}
baseroot=${basename%.*}
# make names for temporary files
tmppdffile=${baseroot}.$$_.pdf
tmppdfroot=${tmppdffile%.*}
# have the temporary files deleted on exit, interrupt, etc:
trap "/bin/rm -f ${tmppdfroot}*" EXIT SIGHUP SIGINT SIGTERM
cp $inpdffile $tmppdffile
# need mysterious "primer"
#echo "0 neg 0 neg" translate | gs -sDEVICE=png16m -sOutputFile=${outpngroot}%03d.png -r300x300 -q - ${tmppdffile}
echo "0 neg 0 neg" translate | gs -sDEVICE=png16m -sOutputFile=${outpngroot}%03d.png -g2550x3300 -r300x300 -q - ${tmppdffile}