#!/bin/sh
DEVICE=/dev/scanner
# DEVICE=$(scanimage -L | grep "snapscan" | awk -F ":" '{print "snapscan:libusb:"$3":"$4}' | awk -F "'" '{print $1}')
DPI="200"
QUALITY="75"
PDF=$HOME/Desktop/scan.pdf
scanimage -d $DEVICE --resolution=$DPI -x 210 -y 297 --mode=gray | pnmtojpeg --grayscale --quality=$QUALITY | convert -depth $DPI - "$PDF"