telcrap.sh

#!/bin/bash

mkdir -p {images,final}

cd $1

for i in *.pdf
do
    convert -density 400 -flatten ${i} ${i}.png
    convert ${i}.png -crop 2550x1780+375+200 -resize 50% ${i}_ok.png
    rm -f ${i}.png
    convert ${i}_ok.png -shave 1x1 -bordercolor black -border 1 images/${i}.png 
    rm -f ${i}_ok.png
done

cd images

files=$(ls | head -n8)
j=1

while [ -n "${files}" ]
do
    montage -mode concatenate -tile 2x8 ${files} ${j}.png
    convert -density 300 -page A4 ${j}.png ../final/${j}.pdf
    rm -f ${files} ${j}.png
    ((j++))
    files=$(ls *.png | head -n8)
done

cd ..

rm -Rf images/
cd ..