make-proofs.sh

#!/bin/bash

directory=${1:-""}
percentage=${2:-"25"}
watermark_image=${3:-"watermark.png"}
location="southwest"

if [ -z "$directory" ]; then
  echo "Error: directory argument is required"
  exit 1
fi

if [ -z "$percentage" ]; then
  echo "Error: percentage argument is required"
  exit 1
fi

if [ -z "$watermark_image" ]; then
  echo "Error: watermark_image argument is required"
  exit 1
fi

for file in "$directory"/*
do
  if [[ $file == *.jpg || $file == *.JPG || $file == *.jpeg || $file == *.JPEG || $file == *.png || $file == *.PNG ]]; then
    # Resize image
    convert "$file" -resize "${percentage}%" "$file"
    # Add watermark
    convert "$file" "$watermark_image" -gravity "$location" -composite "$file"
  fi
done

echo "Watermark added successfully!"