scripts/center_on_a4

   1 #!/bin/sh
   2
   3 W=596
   4 H=842
   5
   6 if [ -z "$2" ]; then
   7   output=cA4_$(basename $1)
   8 else
   9   output=$2
  10 fi
  11
  12 bbox () {
  13   x=$1
  14   y=$2
  15   w=$3
  16   h=$4
  17 }
  18
  19 bbox $(sed -n -e "s/^%%BoundingBox: //p" $1)
  20
  21 new_bb="0 0 $W $H"
  22 xoff=$((($W-$w)/2))
  23 yoff=$((($H-$h)/2))
  24
  25 pstops "1:0($xoff,$yoff)" $1 | strippagesize "$new_bb" a4 >$output