#!/bin/sh

[ "$#" != "2" ] && echo -ne "Convert NACO low-level enroute chart PDFs to PNG.\nUsage: $0 input.pdf output.png\n" && exit 1

echo Processing may take a few minutes...
gs -q -dSAFER -dBATCH -dNOPAUSE -dNOTRANSPARENCY -sDEVICE=pngalpha -r150x150 -sOutputFile=$2 $1
echo Done.
