3 offset
=485 #a4hoehe-b6breite
4 offset2
=130 #a4hoehe-2xb6breite
20 bbox $
(sed -n -e "s/^%%BoundingBox: //p" $1)
22 new_bb
="0 0 $h $((2*$w))"
24 psbook
$1 | pstops
"4:0L($h,0)+1L($h,$w)" | strippagesize
"$new_bb" >v_
$output
25 psbook
$1 | pstops
"4:2L($h,0)+3L($h,$w)" | strippagesize
"$new_bb" >h_
$output