Soshot/bin/rasterize.js

var page = require('webpage').create(),
    address, output;

if (phantom.args.length < 2) {
    //console.log('Usage: rasterize.js URL filename');
    phantom.exit();
} else {
    address = phantom.args[0];
    output = phantom.args[1];
    page.settings.userAgent = 'Mozilla/5.0 (X11; Linux x86_64; rv:39.0) Gecko/20100101 Firefox/39.0';
    page.viewportSize = { width: 1280, height:1024};

    page.open(address, function (status) {
        if (status !== 'success') {
            console.log('Unable to load the address!');
            page.close();
            phantom.exit();
        } else {
            window.setTimeout(function () {
                page.render(output);
                page.close();
                phantom.exit();
            }, 1000);
        }
    });
}