diff --git a/ppocr/losses/kie_sdmgr_loss.py b/ppocr/losses/kie_sdmgr_loss.py
index 354fbded3daedcb09028f07e4ff16346b46a26c1..70e8acefdc80a87f382533f43e5403bdd71aa3ef 100644
--- a/ppocr/losses/kie_sdmgr_loss.py
+++ b/ppocr/losses/kie_sdmgr_loss.py
@@ -1,4 +1,18 @@
-# Reference From: https://github.com/open-mmlab/mmocr/blob/main/mmocr/models/kie/losses/sdmgr_loss.py
+# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# The code is refer from: Reference From: https://github.com/open-mmlab/mmocr/blob/main/mmocr/models/kie/losses/sdmgr_loss.py
 
 from __future__ import absolute_import
 from __future__ import division
diff --git a/ppocr/modeling/heads/kie_sdmgr_head.py b/ppocr/modeling/heads/kie_sdmgr_head.py
index 156aa9177acbc31c77a29ec76989c7d92cdb146f..4a23a7bbd6134f50d60ec711492cbdd372c02885 100644
--- a/ppocr/modeling/heads/kie_sdmgr_head.py
+++ b/ppocr/modeling/heads/kie_sdmgr_head.py
@@ -1,4 +1,19 @@
-# reference from: https://github.com/open-mmlab/mmocr/blob/main/mmocr/models/kie/heads/sdmgr_head.py
+# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# The code is refer from: https://github.com/open-mmlab/mmocr/blob/main/mmocr/models/kie/heads/sdmgr_head.py
+
 from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function