Shell utility script to compress images into reasonably sized PDFs

img2pdf.sh

#!/bin/sh

if [ $# -eq 0 ]
then
  echo "Usage $0 img1.png img2.tif img3.pdf"
  echo "Requires ghostscript, imagemagick"
fi

for file in "$@"
do
  convert "$file" "$file.pdf"
  pdf2ps "$file.pdf"
  rm "$file.pdf"
  ps2pdf "$file.ps" "${file%.*}.pdf"
  rm "$file.ps"
done