Capture snapshots of web pages using MacRuby.  Based on original code from Ben Curtis, crudely converted to MacRuby by Tom Ward.  

Usage: macruby snapper.rb [options] URL FILENAME

Examples:

macruby snapper.rb http://tomafro.net tomafro.net.pdf
macruby snapper.rb --width 400 --height 200 http://google.com google.com.pdf
macruby snapper.rb --filetype gif http://github.com github.com