code: function AcroFormDictionaryCallback() {
      // Remove event
      scope.internal.events.unsubscribe(scope.internal.acroformPlugin.acroFormDictionaryRoot._eventID);
      delete scope.internal.acroformPlugin.acroFormDictionaryRoot._eventID;
      scope.internal.acroformPlugin.printedOut = true;
    }
docs: Adds /Acroform X 0 R to Document Catalog, and creates the AcroForm
  Dictionary