Make your pictures compatible with the Polaroid Pogo. And preview what they will look like. And add cute white borders.

pogo.rb

# Prep pictures for printing on a Polaroid Pogo
require 'mini_magick'

pogo_path = File.join(Dir.pwd,'pogo')
Dir.mkdir pogo_path unless File.exists? pogo_path

ARGV.each_with_index do |path,i|
    next if File.directory? path

    puts "Processing #{path} ..."
    image = MiniMagick::Image.open(path)
    geometry = image.data["pageGeometry"]
    
    border = 35
    width, height = (640 - 2*border), (960 - 2*border)

    # resize to pogo resolution
    image.combine_options do |option|
      option.gravity 'center'

      if geometry['width'] < geometry['height']
        option.thumbnail "#{width}x#{height}^"
        option.extent "#{width}x#{height}"
      else
        option.thumbnail "#{height}x#{width}^"
        option.extent "#{height}x#{width}"
      end
    end

    # Pogo only accepts jpgs
    image.format('jpg')
    
    # add an adorable border
    image.border(border)
    image.bordercolor 'white'

    # use a short filename or the pogo won't take it
    image.write(File.join(pogo_path,i.to_s)+".jpg")
end