pdfcomp

#!/bin/bash
[ -z "$1" ] && printf "Missing Output File\n" 2>&1 && exit
outfile=$1
shift
while [ $# -gt 0 ]; do
    case $1 in
        -high)
            shift
            convert -density 300x300 -quality 100 "$@"
            break
            ;;
        -low) 
            shift
            gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -dPDFSETTINGS=/prepress -sOutputFile="$outfile" "$@"
            break
            ;;
        -comp) 
            gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/default -dNOPAUSE -dQUIET -dBATCH -dDetectDuplicateImages -dCompressFonts=true -r150 -sOutputFile="$outfile" "$@"
            break
            ;;
        *) 
            gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -sOutputFile="$outfile" "$@"
            break
            ;;
    esac
done