pdf tools for linux using ghostscript

pdfcompress

#!/bin/bash
usage () { cat << EOF
  usage : pdfcompress [ -q id ] file.pdf

  options : -q id
                0 screen   (screen-view-only quality, 72 dpi images)
                1 default  (almost identical to /screen)
                2 ebook    (low quality, 150 dpi images)
                3 printer  (high quality, 300 dpi images)
                4 prepress (high quality, color preserving, 300 dpi imgs)
EOF
}

OPTIND=1
while getopts 'q:h' arg; do
  case ${arg} in
    h)
      usage
      exit 1
      ;;
    q)
      id=${OPTARG}
      ;;
  esac
done


shift $((${OPTIND} - 1 ))

qualities=(screen default ebook printer prepress)
case ${id} in
  screen) id=0;;
  default) id=1;;
  ebook) id=2;;
  printer) id=3;;
  prepress) id=4;;
  0|1|2|3|4) id=${id} ;;
  *) id=2 ;;
esac

if [[ $# -ne 1 ]]; then
  usage
  exit 1
else
  gs -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -dPDFSETTINGS=/${qualities[id]} -sOutputFile=${1/.pdf/_q${id}.pdf} $1
  exit $?
fi

pdfmerge.sh

#!/bin/bash
usage () { cat << EOF
  usage : pdfmerge [ -q prepress ] merged.pdf file1.pdf ...

  options : -q quality
                screen   (screen-view-only quality, 72 dpi images)
                ebook    (low quality, 150 dpi images)
                printer  (high quality, 300 dpi images)
                prepress (high quality, color preserving, 300 dpi imgs)
                default  (almost identical to /screen)
EOF
}

OPTIND=1
while getopts 'q:h' arg; do
  case ${arg} in
    h)
      usage
      exit 1
      ;;
    q)
      quality=${OPTARG}
      ;;
  esac
done

shift $((${OPTIND} - 1 ))
quality=${quality:-prepress}

if [[ $# -le 1 ]]; then
  usage
  exit 1
else
  gs -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -dPDFSETTINGS=/${quality} -sOutputFile=$@
  exit $?
fi

pdfsplit.sh

#!/bin/bash
usage () { cat << EOF
  usage : pdfsplit [ -q prepress ] input.pdf first_page last_page output.pdf

  options : -q quality
                screen   (screen-view-only quality, 72 dpi images)
                ebook    (low quality, 150 dpi images)
                printer  (high quality, 300 dpi images)
                prepress (high quality, color preserving, 300 dpi imgs)
                default  (almost identical to /screen)
EOF
}

OPTIND=1
while getopts 'q:h' arg; do
  case ${arg} in
    h)
      usage
      exit 1
      ;;
    q)
      quality=${OPTARG}
      ;;
  esac
done

shift $((${OPTIND} - 1 ))
quality=${quality:-prepress}

if [ $# -ne 4 ]; then
   usage
   exit 1
else
  gs -dBATCH -dNOPAUSE -q -dPDFSETTINGS=/${quality} -sOutputFile="$4" -dFirstPage="$2" -dLastPage="$3" -sDEVICE=pdfwrite "$1"
  exit $?
fi