123 lines
3.7 KiB
Bash
Executable File
123 lines
3.7 KiB
Bash
Executable File
#!/bin/bash
|
|
#
|
|
# USAGE:
|
|
# ./color_convert.sh colormodelayer1,colormodelayer2 input_layer1.pdf,input_layer2.pdf output.pdf
|
|
# spot colour colormode should look like "spot-COLOR NAME-0 0.64 0.67 0.02"
|
|
# where COLOR NAME is the name of the colour and 0 0.64 0.67 0.02 are cmyk values from 0 to 1
|
|
|
|
|
|
|
|
DEBUG=1
|
|
DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
|
|
|
|
function graytospot {
|
|
[ $DEBUG -eq 1 ] && echo "converting : $1 to $2 \n"
|
|
|
|
####################################################################
|
|
#part1: let's put our custom color reference in gray_to_spot.ps
|
|
IFS='-' read -a args <<< "$2"
|
|
IFS=' ' read -a color <<< "${args[2]}"
|
|
unset IFS
|
|
#args[1] = color name, args[2] = cmyk equivalent in 1 line
|
|
#color[0] = C, color[1] = M, color[2] = Y, color[3] = K
|
|
spotcolor="\/spotcolor [\/Separation (${args[1]}) \/DeviceCMYK{dup ${color[0]} mul exch dup ${color[1]} mul exch dup ${color[2]} mul exch ${color[3]} mul}] def"
|
|
[ $DEBUG -eq 1 ] && echo "spotcolor : $spotcolor \n"
|
|
sed -i "s/^\/spotcolor.*$/$spotcolor/g" $DIR/gray_to_spot.ps
|
|
#endpart1
|
|
|
|
######################################################################
|
|
#part2: convert to ps file using pdftops
|
|
pdftops "$1"
|
|
psfile="${1/.pdf/.ps}"
|
|
|
|
######################################################################
|
|
#part3: modify bitmap decode from [0 1] to [1 0] in generated ps
|
|
sed -i -e 's/Decode \[0 1\]/Decode [1 0]/g' "$psfile"
|
|
|
|
######################################################################
|
|
#part4: convert back to pdf using gray_to_spot.ps
|
|
gs -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile="$1" $DIR/gray_to_spot.ps "$psfile"
|
|
|
|
######################################################################
|
|
#part5: remove ps file
|
|
[ $DEBUG -eq 0 ] && rm "$psfile"
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
IFS=',' read -a layers <<< "$1"
|
|
IFS=',' read -a input_files <<< "$2"
|
|
unset IFS
|
|
|
|
if [ $DEBUG -eq 1 ]; then echo "layers : \n"; printf '%s\n' "${layers[@]}"; fi
|
|
if [ $DEBUG -eq 1 ]; then echo "files : \n"; printf '%s\n' "${input_files[@]}"; fi
|
|
|
|
|
|
#loop on files and convert them according to layers colormodes
|
|
for index in "${!layers[@]}"
|
|
do
|
|
echo "${input_files[index]} ${layers[index]}"
|
|
|
|
if [ "${layers[index]}" = "black" ] || [[ "${layers[index]}" == spot* ]]; then
|
|
gs \
|
|
-dNOPAUSE \
|
|
-dBATCH \
|
|
-sDEVICE=pdfwrite \
|
|
-sProcessColorModel=DeviceGray \
|
|
-sColorConversionStrategy=Gray \
|
|
-sDefaultCMYKProfile=ps_cmyk.icc \
|
|
-dOverrideICC \
|
|
-sOutputFile="${input_files[index]/.pdf/-tmp.pdf}" "${input_files[index]}"
|
|
if [[ "${layers[index]}" == spot* ]]; then
|
|
graytospot "${input_files[index]/.pdf/-tmp.pdf}" "${layers[index]}"
|
|
fi
|
|
elif [ "${layers[index]}" = "cmyk" ]; then
|
|
gs \
|
|
-dNOPAUSE \
|
|
-dBATCH \
|
|
-sDEVICE=pdfwrite \
|
|
-dProcessColorModel=/DeviceCMYK \
|
|
-sColorConversionStrategy=CMYK \
|
|
-sDefaultCMYKProfile=ps_cmyk.icc \
|
|
-dOverrideICC \
|
|
-sOutputFile="${input_files[index]/.pdf/-tmp.pdf}" "${input_files[index]}"
|
|
fi
|
|
|
|
if [ $DEBUG -eq 0 ]; then
|
|
rm "${input_files[index]}"
|
|
fi
|
|
|
|
|
|
|
|
done
|
|
|
|
####IF SINGLE LAYER
|
|
if [ ${#layers[@]} = 1 ]; then
|
|
mv "${input_files[0]/.pdf/-tmp.pdf}" "$3"
|
|
exit
|
|
fi
|
|
|
|
|
|
|
|
####ELSE OVERLAY
|
|
inputFile="${input_files[0]/.pdf/-tmp.pdf}"
|
|
for(( i=1; i < ${#layers[@]}; i++ ))
|
|
do
|
|
pdftk "$inputFile" multistamp "${input_files[i]/.pdf/-tmp.pdf}" output "${3/.pdf/$i.pdf}"
|
|
if [ $DEBUG -eq 0 ]; then
|
|
rm "$inputFile"
|
|
rm "${input_files[i]/.pdf/-tmp.pdf}"
|
|
fi
|
|
|
|
|
|
inputFile="${3/.pdf/$i.pdf}"
|
|
|
|
done
|
|
lastFileN=$(expr ${#layers[@]} - 1)
|
|
|
|
mv "${3/.pdf/$lastFileN.pdf}" "$3"
|
|
echo "done"
|
|
exit
|