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#!/bin/sh
#
# Embed a PDF file with all fonts it uses, so it can be rendered and printed
# correctly by every PDF reader on all types of OS.
#
#
# Credits:
# [1] The PDF viewer 'Evince' on Linux can not display some math symbols correctly
# http://stackoverflow.com/a/10282269/4856091
#
#
# Aaron LI
# 2015-10-24
#
usage() {
echo "usage: `basename $0` <input.pdf> [ output_embedfonts.pdf ]"
exit 1
}
if [ $# -eq 0 ]; then
usage
fi
case "$1" in
-[hH]*)
usage
;;
esac
INFILE="$1"
OUTFILE="$2"
[ -z "${OUTFILE}" ] && OUTFILE="${INFILE%.pdf}_embedfonts.pdf"
# "-dPDFSETTINGS=/prepress" tells Ghostscript to embed all non-embedded fonts.
gs -o "${OUTFILE}" -dPDFSETTINGS=/prepress -sDEVICE=pdfwrite "${INFILE}"
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