diff --git a/README.md b/README.md
index 996d6f3..b509158 100644
--- a/README.md
+++ b/README.md
@@ -5,8 +5,30 @@ Encoding with zxing (Qr code, PDF 417)
 Add library dependency
 
     compile project(path: ':encoding_zxing_lib')
+    
+To generate encode of QrCode
+
+Example -1
+
+        imageView.setImageBitmap(EncodingZxing.encodeToQrCode("Encoding with zxing", 500));
+        
+Example -2
+
+    EncodingZxing.encodeToQrCode(text,
+                                 width,
+                                 height,
+                                 dotColor,
+                                 backgroundColor);
+    ---------------------------------
+
+        EncodingZxing.encodeToQrCode("Encoding with zxing",
+                                      400,
+                                      400,
+                                      Color.BLACK,
+                                      Color.WHITE);
 
         imageView.setImageBitmap(EncodingZxing.encodeToQrCode("Encoding with zxing", 500));
 
+To generate encode of PDF417
 
         imageView.setImageBitmap(EncodingZxing.encodeToPDF417("Encoding with zxing", 500, Color.BLACK, Color.WHITE));