Update app.py

app.py

@@ -26,7 +26,7 @@ def detect(pdf):
             if result_pred[0][j][5]==1 and result_pred[0][j][4]>0.3:
                 storelist.append(i+1)
     if len(storelist)>0:
-        return "find signature in pdf file page:"+str(storelist)
+        return "find signature in pdf file page:"+str([*set(storelist)])
     else:
         return "do not find signature in pdf file"