code: function(err, results) {
        var paperFormat = paperSize.format || "A4";
        var paperOrientation = paperSize.orientation || "portrait";
        var paperBorder = paperSize.border || "1cm";
        var paperWidth  = paperSize.width || 'false';
        var paperHeight = paperSize.height || 'false';
        var renderDelay = paperSize.delay || 500;
  
        /* All necessary files have been created.
         * Construct arguments and create a new phantom process.
         */
        var childArgs = [
          path.join(__dirname, "phantom-script.js"),
          results[0],
          results[1],
          results[2],
          results[3],
          results[4],
          paperFormat,
          paperOrientation,
          paperBorder,
          paperWidth,
          paperHeight,
          renderDelay,
          runningsArgs
        ];
  
        childProcess.execFile(phantom.path, childArgs, function(err, stdout, stderr) {
          var opPointer = new PDFResult(err, results[1]);
  
          if (typeof callback === "function") {
            callback(err, opPointer);
          }
        });
      }
docs: /* err/results-Structure
  [0] = HTML temp file
  [1] = PDF temp file
  [2] = CSS temp file
  [3] = JS temp file
  [4] = Runnings temp file