text: var page = require('webpage').create(),
      address, output, size;
  
  if (phantom.args.length < 2 || phantom.args.length > 3) {
      console.log('Usage: rasterize.js URL filename');
      phantom.exit();
  } else {
      address = phantom.args[0];
      output = phantom.args[1];
      page.viewportSize = { width: 1440 , height: 600};
      page.open(address, function (status) {
  	    if (status !== 'success') {
  		console.log('Unable to load the address!');
  	    } else {
  		window.setTimeout(function () {
  			page.render(output);
  			phantom.exit();
  		    }, 200);
  	    }
  	});
  }