diff --git a/app/src/main/java/org/ntlab/irisclient/viewmodels/DrawingStateViewModel.java b/app/src/main/java/org/ntlab/irisclient/viewmodels/DrawingStateViewModel.java
index 1557c4c..32b42c5 100644
--- a/app/src/main/java/org/ntlab/irisclient/viewmodels/DrawingStateViewModel.java
+++ b/app/src/main/java/org/ntlab/irisclient/viewmodels/DrawingStateViewModel.java
@@ -10,6 +10,7 @@
 import androidx.lifecycle.MutableLiveData;
 
 import java.io.ByteArrayOutputStream;
+
 import java.util.Base64;
 import java.util.List;
 
@@ -120,11 +121,12 @@
         updateDno(rid, nickName);
     }
     public String putDrawing(Bitmap image){
-        ByteArrayOutputStream stream = new ByteArrayOutputStream();
-        image.compress(Bitmap.CompressFormat.PNG, 100, stream);
-        byte[] byteArray = stream.toByteArray();
+//        ByteArrayOutputStream stream = new ByteArrayOutputStream();
+//        image.compress(Bitmap.CompressFormat.PNG, 100, stream);
+//        byte[] byteArray = stream.toByteArray();
+        String string = "sample";
         Base64.Encoder encoder = Base64.getEncoder();
-        String encoded = encoder.encodeToString(byteArray);
+        String encoded = encoder.encodeToString(string.getBytes());
         return encoded;
     }
 }