#!/bin/bash

if [ -z "$1" ]
 then
   echo ""
   echo "usage: pdf-merge input_n1.pdf input_n2.pdf ... input_nx.pdf"
   echo "" 
 else /usr/bin/gs -dNOPAUSE -sDEVICE=pdfwrite -sOUTPUTFILE=merged.pdf -dBATCH $@
fi