resize_cards.sh

#!/bin/bash

if [ -f /usr/local/bin/magick ]; then
	cmd="magick"
elif [ -f /usr/local/bin/convert ]; then
	cmd="convert"
else
	echo "ImageMagick is required to run this script.  Please ensure that ImageMagick is installed and try again."
fi

if ! [ -d resized ] ; then
	mkdir resized
fi

if ! [ -d bleed ] ; then
	mkdir bleed
fi

# Process each PNG image
for image in *.png; do
    # Define the output file path for the processed image with bleed
    output_file="bleed/${image%.*}_with_bleed.${image##*.}"

    # Skip processing if the output file already exists
    if [ -f "$output_file" ]; then
        echo "Skipping $image - already processed"
        continue
    fi

    echo "Resizing $image to fit 744x1038 (cut area)"
    $cmd "$image" -background black -resize 744x1038 -gravity center -extent 744x1038 "resized/resized_${image%.*}.${image##*.}"

	# 816 x 1110 pixels (300DPI) | Max file size 32MB
    # Step 2: Add a 38-pixel bleed on each side, resulting in 816 x 1110 pixels (full bleed)
    $cmd "resized/resized_${image%.*}.${image##*.}" -background black -gravity center -extent 816x1110 "$output_file"
done