Scan pages using Sane's scanimage and convert them to pdf (with page and pdf preview using qiv and mupdf)

scan-A4.sh

#!/bin/sh -e

nr=1

mkdir $1

while true ; do
        file=$1/`printf "%04d" $nr`.jpg
        echo "scanning page $nr -> $file"
        scanimage --progress --resolution 300 --format jpg -l 0mm -t 0mm -x 210mm -y 297mm > $file
        qiv $file
        echo "enter = one more page, anything else to convert to $1.pdf"
        read wait_for_key
        if [ ! -z "$wait_for_key" ] ; then
                convert $1/*.jpg $1.pdf
                mupdf $1.pdf
                ls -al $1.pdf
                exit 0
        fi
        nr=`expr $nr + 1`
done