Linux Practical Task 2 edit1

#!/bin/bash
# convert *PNG -clone 2
# mogrify -resize 90% -brightness-contrast 30 input_images*.PNG

# montage *PNG -tile 2x2 -geometry 2000 output.pdf
# convert output.pdf -page A4 output.pdf

# mogrify -resize 10% -brightness-contrast 100 *.PNG


#Finally
montage -tile 2x1 -geometry 1000 input_images/*PNG output.pdf

mogrify -brightness-contrast 30 output.pdf