input=${1}
: ${input:?}

set -e -x

test -d OEBPS/images || mkdir -p OEBPS/images
if false
then
gs -dSAFER -dBATCH -dNOPAUSE -sDEVICE=pnggray -r150 \
  -sOutputFile='OEBPS/images/page%03d.png' $input
fi

test -d tmp || mkdir -p tmp
for ps in OEBPS/images/page*.png
do
  page=`echo $ps | sed 's/.*page//; s/.png//'`
  npage=`echo $page | sed 's/^0*//'`
  pdftotext -f $page -l $page -eol unix -nopgbrk $input tmp/page${page}.txt
done