spdf.sh

#!/bin/bash

# Reset
NC='\033[0m'       # Text Reset

# Regular Colors
Black='\033[0;30m'        # Black
Red='\033[0;31m'          # Red
Green='\033[0;32m'        # Green
Yellow='\033[0;33m'       # Yellow
Blue='\033[0;34m'         # Blue
Purple='\033[0;35m'       # Purple
Cyan='\033[0;36m'         # Cyan
White='\033[0;37m'        # White

# Bold
BBlack='\033[1;30m'       # Black
BRed='\033[1;31m'         # Red
BGreen='\033[1;32m'       # Green
BYellow='\033[1;33m'      # Yellow
BBlue='\033[1;34m'        # Blue
BPurple='\033[1;35m'      # Purple
BCyan='\033[1;36m'        # Cyan
BWhite='\033[1;37m'       # White

# Underline
UBlack='\033[4;30m'       # Black
URed='\033[4;31m'         # Red
UGreen='\033[4;32m'       # Green
UYellow='\033[4;33m'      # Yellow
UBlue='\033[4;34m'        # Blue
UPurple='\033[4;35m'      # Purple
UCyan='\033[4;36m'        # Cyan
UWhite='\033[4;37m'       # White

# Background
On_Black='\033[40m'       # Black
On_Red='\033[41m'         # Red
On_Green='\033[42m'       # Green
On_Yellow='\033[43m'      # Yellow
On_Blue='\033[44m'        # Blue
On_Purple='\033[45m'      # Purple
On_Cyan='\033[46m'        # Cyan
On_White='\033[47m'       # White

# High Intensity
IBlack='\033[0;90m'       # Black
IRed='\033[0;91m'         # Red
IGreen='\033[0;92m'       # Green
IYellow='\033[0;93m'      # Yellow
IBlue='\033[0;94m'        # Blue
IPurple='\033[0;95m'      # Purple
ICyan='\033[0;96m'        # Cyan
IWhite='\033[0;97m'       # White

# Bold High Intensity
BIBlack='\033[1;90m'      # Black
BIRed='\033[1;91m'        # Red
BIGreen='\033[1;92m'      # Green
BIYellow='\033[1;93m'     # Yellow
BIBlue='\033[1;94m'       # Blue
BIPurple='\033[1;95m'     # Purple
BICyan='\033[1;96m'       # Cyan
BIWhite='\033[1;97m'      # White

# High Intensity backgrounds
On_IBlack='\033[0;100m'   # Black
On_IRed='\033[0;101m'     # Red
On_IGreen='\033[0;102m'   # Green
On_IYellow='\033[0;103m'  # Yellow
On_IBlue='\033[0;104m'    # Blue
On_IPurple='\033[0;105m'  # Purple
On_ICyan='\033[0;106m'    # Cyan
On_IWhite='\033[0;107m'   # White


cwd=$(pwd)



RUNALL=FALSE
IMAGES=FALSE
MKPDF=FALSE
SCALEPDF=FALSE
MERGE=FALSE
RESIZE=FALSE
while getopts "o:aipsmr" flag
do
    case "${flag}" in
        o) OUTPUT=${OPTARG}
        ;; 

        a) RUNALL=TRUE
        ;;
        i) IMAGES=TRUE
        ;;
        p) MKPDF=TRUE
        ;;
        s) SCALEPDF=TRUE
        ;;
        m) MERGE=TRUE
        ;;
        r) RESIZE=TRUE
        ;;
        \?) 
        echo "#####################################################"
        echo "Usage:"
        echo "-o output name"
        echo "-a will run the whole process"
        echo "-i will create images"
        echo "-p will make PDFs"
        echo "-s will scale the PDFs to A4 so they all match in size"
        echo "-m will merge the pdfs into one final container specified in the -o parameter"
        echo "-r will use ghostscript to resize the reultant container"
        echo "#####################################################"
        exit 1
        ;;
    esac
done

function mkimgs() {
    echo "Creating Images"
    echo "$f2c"
    pdfimages -all "$f" images/kat"$i"
    # pdftoppm -png "$f" images/kat"$i"
    echo "Image Creation Complete"
}

function size() {
    mkdir sized
    #match all sizes
    cd images
    NF="${FILENAME}x${percent}.${EXT}"
    echo "${NF}"
    convert "${f}" -resize "2480x3508"  "../sized/${f}"
    cd ..
}

function mkpdfs {
    echo "Creating PDFs from images"
    cd images
    for f in *
    do
        extension=${f##*.}
        fn=${f%.*}
        if [ $extension == 'png' ]
        then
            tesseract "$f" "../pdf/$fn" pdf
        fi

    done
    cd "$cwd"
    echo "PDF files from images complete"
}

function scalepdf() {
    mkdir pdfscale
    cd pdf

    for f in *.pdf
    do
        printf "${Yellow} Scaling ${f} ${NC}"
    pdfposter "$f" "../pdfscale/$f"
    done
}

#2480x3508
function mergepdfs() {
    echo "Merging PDFs with pdfunite"
    cd pdfscale
    if [ ${OUTPUT##*.} == "pdf" ]
    then
        filename=${OUTPUT##*.}
    else
        filename="${OUTPUT}"
    fi

    pdfunite $(ls -v *.pdf) "../$filename.pdf"
    #shrink pdf
    if [ $RESIZE == TRUE ]
    then
        cd "$cwd"
        echo "Resizing PDF with Ghostscript"
        # -dPDFSETTINGS=/screen lower quality, smaller size. (72 dpi)
        # -dPDFSETTINGS=/ebook for better quality, but slightly larger pdfs. (150 dpi)
        # -dPDFSETTINGS=/prepress output similar to Acrobat Distiller "Prepress Optimized" setting (300 dpi)
        # -dPDFSETTINGS=/printer selects output similar to the Acrobat Distiller "Print Optimized" setting (300 dpi)
        # -dPDFSETTINGS=/default selects output intended to be useful across a wide variety of uses, possibly at the expense of a larger output file
        ghostscript -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/printer -dNOPAUSE -dQUIET -dBATCH -sOutputFile="${filename}_resize.pdf" "$filename.pdf"
    fi
}

printf "OUTPUT Name: ${Green} ${OUTPUT} ${NC}\n"


if [ $RUNALL == TRUE ]
then
    echo "Running the whole shebang"
    echo "Creating images directory"
    mkdir images
    i=0
    for f in *.pdf
    do
    mkimgs $f
    echo $i
    ((i=i+1))
    done
    echo "Creating PDFs directory"
    mkdir pdf
    mkpdfs
    echo "Scaling pdfs to A4"
    scalepdf

    echo "Creating Single PDF from individual files"
    RESIZE=TRUE
    mergepdfs
    else
        if [ $IMAGES == TRUE ]
        then
            echo "Creating images directory"
            mkdir images
            i=0
            for f in *.pdf
            do
            mkimgs $f
            echo $i
            ((i=i+1))
            done
        fi

        if [ $MKPDF == TRUE ]
        then
            echo "Creating PDFs directory"
            mkdir pdf
            mkpdfs
        fi
        if [ $SCALEPDF == TRUE ]
        then
            echo "Scaling pdfs to A4"
            scalepdf
        fi
        if [ $MERGE == TRUE ]
        then
            mergepdfs
        fi

fi