diff --git a/www/zbtprinter.js b/www/zbtprinter.js
index d4d6b14..848bf94 100644
--- a/www/zbtprinter.js
+++ b/www/zbtprinter.js
@@ -3,3 +3,7 @@ var exec = require('cordova/exec');
 exports.print = function(str, mac, successCallback, errorCallback) {
     cordova.exec(successCallback, errorCallback, 'ZebraBluetoothPrinter', 'print', [str,mac]);
 };
+
+exports.file = function(str, mac, successCallback, errorCallback) {
+    cordova.exec(successCallback, errorCallback, 'ZebraBluetoothPrinter', 'file', [str,mac]);
+};