#!/bin/bash
# (c) Alek$ http://nevkontakte.org.ru
# Required packages: netpbm, ghostscript-library, pdftk

if [[ "$#" -lt "2" ]]
then
	echo "mypng2pdf.sh by Alek$, http://nevkontakte.org.ru"
	echo "	USAGE:"
	echo "	$0 file1.png ... fileN.png output.pdf"
	echo ""
	exit 0
fi

while [ "$#" -gt "1" ]
do
	pngtopnm $1 | pnmtops | ps2pdf - $1.myp2p-pdf
	shift 1
done

pdftk *.myp2p-pdf cat output $1

rm *.myp2p-pdf