#!/bin/zsh
current="$(pwd)"
for file in $@; do
	INPUTPDF=/tmp/file.pdf
	cp -f "$file" $INPUTPDF
	printf '\\documentclass[a4paper,final]{article}
\\usepackage{pdfpages}
\\begin{document}
\\includepdf[pages=-, nup=2x1, booklet=true, landscape]{%s}
\\end{document}' "$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