scan2pdf.sh - Linux command-line scan-to-pdf script

scan2pdf.sh

#!/bin/bash -e

## Put your sane-detected device name here.
#DEVICE="snapscan"
## For network scanners use
#DEVICE="net:sane.example.org:snapscan"
DEVICE='brother4:net1;dev0'

## See scanimage --device $(DEVICE) --help
SOURCES[0]="FlatBed"
SOURCES[1]="Automatic Document Feeder(left aligned)"
SOURCES[2]="Automatic Document Feeder(left aligned,Duplex)"
SOURCES[3]="Automatic Document Feeder(centrally aligned)"
SOURCES[4]="Automatic Document Feeder(centrally aligned,Duplex)"
SOURCE=${SOURCES[3]} # Default

RESOLUTIONS=(100 150 200 300 400 600 1200 2400 4800 9600)
RESOLUTION=150	# Default

MODES[0]="Black & White"
MODES[1]="Gray[Error Diffusion]"
MODES[2]="True Gray"
MODES[3]="24bit Color"
MODES[4]="24bit Color[Fast]"
MODE=${MODES[2]}	# Default

function process_option()
{
	declare -a ARRAY=("${!1}"); shift
	VALUE=$1; shift
	DEFAULT=$1; shift
	MESSAGE=$1; shift
	if in_array ARRAY[@] "${VALUE}"; then
		echo ${VALUE}
		exit 0
	fi
	if [ ${VALUE} -lt 0 -o ${VALUE} -ge ${#ARRAY[@]} ]; then
		echo "$0: ${MESSAGE}"
		list_array ARRAY[@] "$DEFAULT"
		exit 1
	fi >&2
	echo ${ARRAY[${VALUE}]}
}

function in_array()
{
	declare -a ARRAY=("${!1}"); shift
	VALUE=$1; shift
	for i in ${!ARRAY[@]}; do
		test "${ARRAY[$i]}" = "${VALUE}" && return 0
	done
	return 1
}

function list_array()
{
	declare -a ARRAY=("${!1}"); shift
	DEFAULT=$1; shift
	for i in ${!ARRAY[@]}; do
		MARK_DEFAULT=" "
		test "${ARRAY[$i]}" = "${DEFAULT}" && MARK_DEFAULT="*"
		echo "  ${MARK_DEFAULT} [$i]  ${ARRAY[$i]}"
	done
}

while getopts m:s:r:d:o:kh OPTION
do
	case ${OPTION} in
		m)
			MODE=$(process_option MODES[@] "${OPTARG}" "${MODE}" "invalid mode, valid values for -m are:")
			test $? -gt 0 && exit 1
			;;
		r|d)
			RESOLUTION=$(process_option RESOLUTIONS[@] "${OPTARG}" "${RESOLUTION}" "invalid resolution, valid values for -r are:")
			test $? -gt 0 && exit 1
			;;
		s)
			SOURCE=$(process_option SOURCES[@] "${OPTARG}" "${SOURCE}" "invalid source, valid values for -s are:")
			test $? -gt 0 && exit 1
			;;
		o)
			OUTFILE=${OPTARG}
			;;
		k)
			KEEP_TMP=1
			;;
		h|?)
			usage
			exit 2
	esac
done

test -z "${OUTFILE}" && usage

echo -e "\e[1mScanning options:\e[0m"
echo -e "\e[33mMODE:    \e[1m${MODE}\e[0m"
echo -e "\e[33mDPI:     \e[1m${RESOLUTION}\e[0m"
echo -e "\e[33mSOURCE:  \e[1m${SOURCE}\e[0m"
echo -e "\e[33mOUTFILE: \e[1m${OUTFILE}\e[0m"

#SCANIMAGE_OPTS=' --resolution 150 --brightness 20 --contrast 20 -l 0 -t 0 -x 210 -y 290'
SCANIMAGE_OPTS=' -l 0 -t 0 -x 210 -y 290'

if [ "$1" = "" ]; then
        echo "Usage: $0 <output-file-name.pdf>"
        exit 1
fi

TMPDIR=$(mktemp -d /tmp/scan2pdf.XXXXXXX)

echo "Temporary files kept in: ${TMPDIR}"

cd ${TMPDIR}

set +e
scanimage --device ${DEVICE} ${SCANIMAGE_OPTS} --resolution ${RESOLUTION} --source="${SOURCE}" --mode="${MODE}" --progress --verbose --format=tiff --batch  # --batch-prompt
set -e
ls -1 out*.tif > /dev/null

tiffcp -c lzw out*.tif scan.tiff

cd -

tiff2pdf -z ${TMPDIR}/scan.tiff > ${OUTFILE}

ls -l ${OUTFILE}

if [ -z "${KEEP_TMP}" ]; then
        rm -rf ${TEMPDIR}
else
        echo "Temporary files are in ${TEMPDIR}"
fi

Lines 129 and 131 should be TMPDIR, not TEMPDIR

Despite being written 7 years ago this script still can be hacked into whatever you need it for. I might go ahead and post a proper working code of this as minor changes need to be made to modern syntax changes in scanimage and the program as I want to be able to save someone a few hours because I run a CUPS node with ssh access and this script is exactly what I need.

I might go ahead and post a proper working code of this

NotANormie, please make an updated version of this script. I know, just by looking at it, that I'm going to spend at least an hour tweaking it to my liking; yet in 30 seconds I could/could-of opened simple-scan.

Here is where I'm leaving it at. Testing scan resolution vs jpeg quality.

for r in 300 150 75; do scanimage --device "pixma:04A9173A_90265B" -l 0 -t 0 -x 216.069mm -y 253.990mm --source FlatBed --resolution ${r} --mode="Gray" --progress --verbose --format=tiff > "scanimage${r}.tiff"; for q in 100 75 50 25; do tiff2pdf -p letter -j -q ${q} -t "Document" -f -o "tiff2pdf${q}.pdf" "scanimage${r}.tiff"; done; done

I created an updated and extended version of this script from scratch:
https://gist.github.com/fonic/a9b6920f7a63abe818c541970415b1a0

Big thanks to the author of the original!