Resize and Watermark images with ImageMagick

watermark.sh

#!/bin/bash

# change dir to the first arg to the script
cd $1
if [[ "$2" != "" ]]; then
    FONT_TYPE="$2"
else
    FONT_TYPE="Helvetica"
fi

if [[ "$3" != "" ]]; then
    ALT_FONT_TYPE="$3"
else
    ALT_FONT_TYPE="Helvetica"
fi

# create resized dir
mkdir resized

# lookup files with extension
for fname in *.*; do

  final_file="./resized/$(echo $fname | cut -d'.' -f1).png"
  # resize, sharpen and convert
  echo "processing $fname"
  mogrify -quality 96% -format png -write "$final_file" -resize 12% "$fname"

  # watermark
  echo "watermarking $final_file, using $FONT_TYPE"
  convert "$final_file"  -font $FONT_TYPE -pointsize 36\
          -draw "gravity center \
                 fill white  text 0,-20 'Monica Brady Photography' " \
          "$final_file"
  
  convert "$final_file"  -font $ALT_FONT_TYPE -pointsize 32 \
          -draw "gravity center \
                 fill white  text 5,30 'monicabrady.net' " \
          "$final_file"
done