test.js

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


var url = 'http://localhost:8000/reports/acquisition/1411801200000';
page.open(url);
page.onLoadFinished = function() {
  page.render('screenshot.pdf');
  phantom.exit();
};

page.onConsoleMessage = function(msg, lineNum, sourceId) {
  console.log(msg);
};