diff --git a/ppocr/data/imaug/iaa_augment.py b/ppocr/data/imaug/iaa_augment.py
index e9a1fa0637bfecfb797a35d58abe5cbf38688679..0aac7877c257f3e7532ca2806891775913d416b7 100644
--- a/ppocr/data/imaug/iaa_augment.py
+++ b/ppocr/data/imaug/iaa_augment.py
@@ -1,3 +1,16 @@
+# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# 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.
 """
 This code is refer from:
 https://github.com/WenmuZhou/DBNet.pytorch/blob/master/data_loader/modules/iaa_augment.py
diff --git a/ppocr/data/imaug/make_border_map.py b/ppocr/data/imaug/make_border_map.py
index 44110ff3bb82eac0a56a941d5d181dbfb0502a01..abab38368db2de84e54b060598fc509a65219296 100644
--- a/ppocr/data/imaug/make_border_map.py
+++ b/ppocr/data/imaug/make_border_map.py
@@ -1,4 +1,16 @@
-# -*- coding:utf-8 -*- 
+# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# 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.
 """
 This code is refer from:
 https://github.com/WenmuZhou/DBNet.pytorch/blob/master/data_loader/modules/make_border_map.py
diff --git a/ppocr/data/imaug/make_pse_gt.py b/ppocr/data/imaug/make_pse_gt.py
index d1e2b1c5ed709d0e3e17c392c80174b70d5dd2f2..255d076bde848d53f3b2fb04e80594872f4ae8c7 100644
--- a/ppocr/data/imaug/make_pse_gt.py
+++ b/ppocr/data/imaug/make_pse_gt.py
@@ -1,4 +1,16 @@
-# -*- coding:utf-8 -*- 
+# copyright (c) 2021 PaddlePaddle Authors. All Rights Reserve.
+#
+# 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.
 
 from __future__ import absolute_import
 from __future__ import division
@@ -14,11 +26,6 @@ __all__ = ['MakePseGt']
 
 
 class MakePseGt(object):
-    r'''
-    Making binary mask from detection data with ICDAR format.
-    Typically following the process of class `MakeICDARData`.
-    '''
-
     def __init__(self, kernel_num=7, size=640, min_shrink_ratio=0.4, **kwargs):
         self.kernel_num = kernel_num
         self.min_shrink_ratio = min_shrink_ratio
diff --git a/ppocr/data/imaug/make_shrink_map.py b/ppocr/data/imaug/make_shrink_map.py
index 78171268fb30dfb9394697cf53cd5196818cf06f..6c65c20e5621f91a5b1fba549b059c92923fca6f 100644
--- a/ppocr/data/imaug/make_shrink_map.py
+++ b/ppocr/data/imaug/make_shrink_map.py
@@ -1,4 +1,16 @@
-# -*- coding:utf-8 -*- 
+# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# 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.
 """
 This code is refer from:
 https://github.com/WenmuZhou/DBNet.pytorch/blob/master/data_loader/modules/make_shrink_map.py
diff --git a/ppocr/data/imaug/random_crop_data.py b/ppocr/data/imaug/random_crop_data.py
index 507695ff0fa92789b921310079eb8b471a1e275d..64aa110de4e3df950ce21e6d657877081b0fdd13 100644
--- a/ppocr/data/imaug/random_crop_data.py
+++ b/ppocr/data/imaug/random_crop_data.py
@@ -1,4 +1,16 @@
-# -*- coding:utf-8 -*- 
+# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# 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.
 """
 This code is refer from:
 https://github.com/WenmuZhou/DBNet.pytorch/blob/master/data_loader/modules/random_crop_data.py
diff --git a/ppocr/data/imaug/text_image_aug/augment.py b/ppocr/data/imaug/text_image_aug/augment.py
index eb2c7f129d785e4cb88cb9f356dc09cebc23fc71..2d15dd5f353c72a6cc3876481c423d81a8175c95 100644
--- a/ppocr/data/imaug/text_image_aug/augment.py
+++ b/ppocr/data/imaug/text_image_aug/augment.py
@@ -1,3 +1,16 @@
+# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# 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.
 """
 This code is refer from:
 https://github.com/RubanSeven/Text-Image-Augmentation-python/blob/master/augment.py
diff --git a/ppocr/data/imaug/text_image_aug/warp_mls.py b/ppocr/data/imaug/text_image_aug/warp_mls.py
index e6ab7337ffe4d511a5b9f5b1d045b0fe21bc7924..75de11115cf9ba824a7cd62b8b880ea7f99e4cb2 100644
--- a/ppocr/data/imaug/text_image_aug/warp_mls.py
+++ b/ppocr/data/imaug/text_image_aug/warp_mls.py
@@ -1,3 +1,16 @@
+# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# 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.
 """
 This code is refer from:
 https://github.com/RubanSeven/Text-Image-Augmentation-python/blob/master/warp_mls.py
@@ -152,4 +165,4 @@ class WarpMLS:
         dst = np.clip(dst, 0, 255)
         dst = np.array(dst, dtype=np.uint8)
 
-        return dst
\ No newline at end of file
+        return dst
diff --git a/ppocr/losses/det_pse_loss.py b/ppocr/losses/det_pse_loss.py
index 6beea8d8bee9f54d886eb0236bdf34e4a599053c..9b8ac4b5a5dfac176c398dd0a9e490e5ca67ad5f 100644
--- a/ppocr/losses/det_pse_loss.py
+++ b/ppocr/losses/det_pse_loss.py
@@ -1,3 +1,16 @@
+# copyright (c) 2021 PaddlePaddle Authors. All Rights Reserve.
+#
+# 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.
 """
 This code is refer from:
 https://github.com/whai362/PSENet/blob/python3/models/head/psenet_head.py
diff --git a/ppocr/modeling/heads/det_pse_head.py b/ppocr/modeling/heads/det_pse_head.py
index 9ac1e79532760b267cb4d6f2ca72e9cdd555cdcb..32a5b48e190b7566411b19841b6aa14455b5d41d 100644
--- a/ppocr/modeling/heads/det_pse_head.py
+++ b/ppocr/modeling/heads/det_pse_head.py
@@ -1,3 +1,16 @@
+# copyright (c) 2021 PaddlePaddle Authors. All Rights Reserve.
+#
+# 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.
 """
 This code is refer from:
 https://github.com/whai362/PSENet/blob/python3/models/head/psenet_head.py
diff --git a/ppocr/modeling/necks/fpn.py b/ppocr/modeling/necks/fpn.py
index 9d69a4c17d2a7099ac2c446e13b448c21d33a100..48c85b1e53bd889bc887e8fedcd33b1b12cb734b 100644
--- a/ppocr/modeling/necks/fpn.py
+++ b/ppocr/modeling/necks/fpn.py
@@ -1,3 +1,16 @@
+# copyright (c) 2021 PaddlePaddle Authors. All Rights Reserve.
+#
+# 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.
 """
 This code is refer from:
 https://github.com/whai362/PSENet/blob/python3/models/neck/fpn.py
diff --git a/ppocr/postprocess/pse_postprocess/pse_postprocess.py b/ppocr/postprocess/pse_postprocess/pse_postprocess.py
index d86af2e5b1e910fd4f9b7323c9be4e676aa9462b..0234d592d6dde8419b1d623e33b9ca5bb251fb97 100755
--- a/ppocr/postprocess/pse_postprocess/pse_postprocess.py
+++ b/ppocr/postprocess/pse_postprocess/pse_postprocess.py
@@ -1,3 +1,16 @@
+# copyright (c) 2021 PaddlePaddle Authors. All Rights Reserve.
+#
+# 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.
 """
 This code is refer from:
 https://github.com/whai362/PSENet/blob/python3/models/head/psenet_head.py
diff --git a/ppocr/utils/iou.py b/ppocr/utils/iou.py
index 80d15df0fdb127399af112d842b632927a7bccea..35459f5f053cde0a74f76c5652bfb723a48ca890 100644
--- a/ppocr/utils/iou.py
+++ b/ppocr/utils/iou.py
@@ -1,3 +1,16 @@
+# copyright (c) 2021 PaddlePaddle Authors. All Rights Reserve.
+#
+# 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.
 """
 This code is refer from:
 https://github.com/whai362/PSENet/blob/python3/models/loss/iou.py
diff --git a/ppocr/utils/logging.py b/ppocr/utils/logging.py
index e30eee68024c5c5f4c549519f087a421e87ce65d..ce827e8b10c4b63b736886a2f72106c7570576b1 100644
--- a/ppocr/utils/logging.py
+++ b/ppocr/utils/logging.py
@@ -1,3 +1,16 @@
+# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# 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.
 """
 This code is refer from:
 https://github.com/WenmuZhou/PytorchOCR/blob/master/torchocr/utils/logging.py