• bash
• bashscript

Mengubah CYMK dan layer PDF dengan Bash Script

Berikut adalah contoh bash script yang dapat digunakan untuk memeriksa secara rekursif apakah semua berkas PDF sudah format warna RGB dan tanpa layer, mengubah berkas PDF ke RGB jika masih dalam format CYMK, meratakan (flatten) layer PDF jika masih memiliki layer, dan menghapus print-mark pada halaman PDF jika ada:

`

!/bin/bash

function check_pdf { if [ -f "$1" ] && [ "${1##*.}" = "pdf" ]; then

Check if PDF is in RGB color space

    color=$(identify -verbose "$1" | grep Colorspace | awk '{print $2}')
    if [ "$color" != "RGB" ]; then
        echo "Converting $1 to RGB"
        gs -o "${1%.*}_rgb.pdf" -sDEVICE=pdfwrite -dColorConversionStrategy=/RGB "$1"
        mv "${1%.*}_rgb.pdf" "$1"
    fi

    # Check if PDF has layers
    layers=$(pdftk "$1" dump_data | grep -c "NumberOfLayers")
    if [ "$layers" -ne 0 ]; then
        echo "Flattening layers in $1"
        pdftk "$1" output "${1%.*}_flat.pdf" flatten
        mv "${1%.*}_flat.pdf" "$1"
    fi

    # Check if PDF has print-marks
    if pdftk "$1" dump_data | grep -q "/Print"; then
        echo "Removing print-marks from $1"
        pdftk "$1" output "${1%.*}_noprint.pdf" "drop_xfa" "drop_attachments"
        mv "${1%.*}_noprint.pdf" "$1"
    fi
elif [ -d "$1" ]; then
    # Recursively check files in directory
    for file in "$1"/*; do
        check_pdf "$file"
    done
fi

}

panggil fungsi rekursif

check_pdf "/path/to/directory"

`