diff --git a/app/Http/Controllers/InvoiceController.php b/app/Http/Controllers/InvoiceController.php
index 8366b760..26c7d722 100644
--- a/app/Http/Controllers/InvoiceController.php
+++ b/app/Http/Controllers/InvoiceController.php
@@ -349,13 +349,13 @@ class InvoiceController extends Controller
             $booking->admin_status = 7;
             $booking->save();
 
-            $do = $this->CIEFToSupplierDO($request, $booking->id);
+            $do = $this->generateSupplierDo($request, $booking->id);
             Mail::raw( 'DO for booking no'.$booking->id, function($message) use ($do, $booking){
                 $message->from('info@cief-malaysia.com');
                 $message->to('uldvstar@gmail.com');
                 $message->subject('DO for booking no'.$booking->id);
                 //Attach PDF doc
-                $message->attachData($do,'do_booking_no_'.$booking->id.'.pdf');
+                $message->attachData($do->Output(),'do_booking_no_'.$booking->id.'.pdf');
             });
 
             if(!$booking) {
@@ -371,8 +371,7 @@ class InvoiceController extends Controller
 
     }
 
-    public function customerToCIEFPO(Request $request, $id)
-    {
+    public function generateSupplierDo(Request $request, $id){
         if (!is_numeric($id)) {
             return response()->json(["message" => "Invalid id. Id needs to be a number"], 400);
         }
@@ -424,7 +423,7 @@ class InvoiceController extends Controller
             'billingcharges' => $billing_charges,
             'total' => $total
         ];
-       
+
         $defaultConfig = (new \Mpdf\Config\ConfigVariables())->getDefaults();
         $fontDirs = $defaultConfig['fontDir'];
         $defaultFontConfig = (new \Mpdf\Config\FontVariables())->getDefaults();
@@ -440,7 +439,7 @@ class InvoiceController extends Controller
         $mpdf->SetTitle('Invoice');
 
         $html = view('pdf/po', $data);
-        
+
         $mpdf->Bookmark('Start of the document');
         $mpdf->SetHTMLFooter('
         <table width="100%">
@@ -453,6 +452,12 @@ class InvoiceController extends Controller
         $mpdf->setHeader($invoice->po_number);
         $mpdf->WriteHTML($html);
 
+        return $mpdf;
+    }
+
+    public function customerToCIEFPO(Request $request, $id)
+    {
+        $mpdf = $this->generateSupplierDo($request, $id);
         $mpdf->Output();
 
     }