69 lines
1.3 KiB
Bash
Executable File
69 lines
1.3 KiB
Bash
Executable File
#!/bin/sh
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_printhelp ()
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{
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cat <<EOF
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Usage: ${1##*/} [OPTIONS] PDFFILES
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All PDF files will be compressed to a PDF file with "-compressed" appended in its name.
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WARNING: use this function with caution. It may drastically improve compression
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of some PDF files, but in some case, the output filesize will be greater! You
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should not use it over PDF files embedding raster graphics.
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Options:
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-f: Overwrite existing files.
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-i: In-place compression.
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EOF
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}
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OPT_INPLACE=false
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OPT_OVERWRITE=false
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while getopts ":ifh" opt; do
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case $opt in
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h)
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_printhelp "$0"
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exit 1 ;;
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i)
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OPT_INPLACE=true ;;
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f)
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OPT_OVERWRITE=true ;;
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?)
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_printhelp "$0"
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exit 1 ;;
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:)
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_printhelp "$0"
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exit 1 ;;
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esac
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done
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shift $(($OPTIND - 1))
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if [ $# -eq 0 ]; then
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_printhelp "$0"
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exit 1
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fi
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for i ; do
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if [ ! -f "$i" ]; then
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echo "$i is not a valid file."
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continue
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fi
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OUTPUT="${i%.*}-compressed.pdf"
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if [ -e "$OUTPUT" ] && ! $OPT_OVERWRITE; then
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echo "$OUTPUT alredy present. Skipping."
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continue
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fi
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echo "$i"
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gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -sOutputFile="$OUTPUT" "$i"
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if $OPT_INPLACE; then
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rm -f "$i"
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mv "$OUTPUT" "$i"
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fi
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done
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