#!/bin/zsh
current="$(pwd)"
for file in $@; do
	INPUTPDF=/tmp/file.pdf
	cp -f "$file" $INPUTPDF
	printf '\\documentclass[a4paper,final]{article}
	\\usepackage{pdfpages}
	\\usepackage{ifpdf,ifxetex,everyshi}
	\\makeatletter
	\\ifpdf
	\\EveryShipout{\\ifodd\\c@page\\else\\pdfpageattr{/Rotate 180}\\fi}%%
	\\fi
	\\ifxetex
	\\EveryShipout{\\ifodd\\c@page\\special{pdf: put @thispage << /Rotate 180 >>}%%
	\\fi
	}
	\\fi
	\\makeatother
	\\begin{document}
	\\includepdf[pages=-, nup=1x2, booklet=true, landscape]{%s}
	\\end{document}' "$INPUTPDF" > /tmp/tmp$$.tex
	cd /tmp || exit
	pdflatex /tmp/tmp$$.tex
	only_filename="$(echo "$file" | awk -F/ '{print $NF}')"
	mv /tmp/tmp$$.pdf "$current/a5ona4_$only_filename"
	cd "$current"
	rm -f /tmp/tmp$$.log /tmp/tmp$$.log
done