PhantomJS

var system = require('system');

var args = system.args;

var page = require('webpage').create();

page.viewportSize = {width:1366, height:768};

var url = 'http://phantomjs.org/screen-capture.html';

args.forEach(function(arg, i){console.log(i + '--' + arg);});

if(args.length===2){

    url = args[1];

}

console.log("--creating pdf for url:-" + url);

page.open(url, function(){

    setTimeout(function(){ //wait for some time to load dynamic content(s).

        page.render('test.pdf');

        page.render('test.png');

        phantom.exit();

    }, 2 * 1000);

});