diff --git a/.gitignore b/.gitignore
index 6dfdee420..4d50ce984 100644
--- a/.gitignore
+++ b/.gitignore
@@ -137,3 +137,6 @@ dmypy.json
 
 # mindspore compile related
 rank_*/
+
+# DS_Store (MacOS)
+.DS_Store
diff --git a/deploy/py_infer/src/data_process/postprocess/det_db_postprocess.py b/deploy/py_infer/src/data_process/postprocess/det_db_postprocess.py
index 0a46d7f4f..5f0549766 100644
--- a/deploy/py_infer/src/data_process/postprocess/det_db_postprocess.py
+++ b/deploy/py_infer/src/data_process/postprocess/det_db_postprocess.py
@@ -1,3 +1,20 @@
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleOCR
+# with modifications to run on MindSpore.
+#
+# 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.
+
 import logging
 import os
 import sys
diff --git a/deploy/py_infer/src/data_process/postprocess/det_east_postprocess.py b/deploy/py_infer/src/data_process/postprocess/det_east_postprocess.py
index 13b742cd7..f70a72ef7 100644
--- a/deploy/py_infer/src/data_process/postprocess/det_east_postprocess.py
+++ b/deploy/py_infer/src/data_process/postprocess/det_east_postprocess.py
@@ -1,3 +1,20 @@
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleOCR
+# with modifications to run on MindSpore.
+#
+# 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.
+
 import os
 import sys
 
diff --git a/deploy/py_infer/src/data_process/postprocess/det_sast_postprocess.py b/deploy/py_infer/src/data_process/postprocess/det_sast_postprocess.py
index 99e79d462..4e0f47eb3 100644
--- a/deploy/py_infer/src/data_process/postprocess/det_sast_postprocess.py
+++ b/deploy/py_infer/src/data_process/postprocess/det_sast_postprocess.py
@@ -1,3 +1,20 @@
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleOCR
+# with modifications to run on MindSpore.
+#
+# 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.
+
 import os
 import sys
 from typing import Tuple
diff --git a/mindocr/data/layout_dataset.py b/mindocr/data/layout_dataset.py
index 49fc72014..424f71d4f 100644
--- a/mindocr/data/layout_dataset.py
+++ b/mindocr/data/layout_dataset.py
@@ -1,3 +1,8 @@
+# This code is adapted from https://github.com/ultralytics/yolov5
+# with modifications to run on MindSpore.
+
+# Ultralytics 🚀 AGPL-3.0 License - https://ultralytics.com/license
+
 import glob
 import hashlib
 import json
diff --git a/mindocr/data/transforms/rec_abinet_transforms.py b/mindocr/data/transforms/rec_abinet_transforms.py
index 95a0ae386..f75769ce4 100644
--- a/mindocr/data/transforms/rec_abinet_transforms.py
+++ b/mindocr/data/transforms/rec_abinet_transforms.py
@@ -1,3 +1,6 @@
+# This code is adapted from https://github.com/FangShancheng/ABINet
+# with modifications to run on MindSpore.
+
 """
 transform for text recognition tasks.
 """
diff --git a/mindocr/data/transforms/rec_transforms.py b/mindocr/data/transforms/rec_transforms.py
index f0db1485f..fa1e95727 100644
--- a/mindocr/data/transforms/rec_transforms.py
+++ b/mindocr/data/transforms/rec_transforms.py
@@ -1,3 +1,19 @@
+# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleOCR
+# with modifications to run on MindSpore.
+#
+# 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.
 """
 transform for text recognition tasks.
 """
diff --git a/mindocr/data/transforms/svtr_transform.py b/mindocr/data/transforms/svtr_transform.py
index 4281c5261..1e294eed8 100644
--- a/mindocr/data/transforms/svtr_transform.py
+++ b/mindocr/data/transforms/svtr_transform.py
@@ -1,3 +1,19 @@
+# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleOCR
+# with modifications to run on MindSpore.
+#
+# 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.
 import copy
 import logging
 import math
diff --git a/mindocr/data/transforms/table_transform.py b/mindocr/data/transforms/table_transform.py
index 78fea3461..1f9a7569f 100644
--- a/mindocr/data/transforms/table_transform.py
+++ b/mindocr/data/transforms/table_transform.py
@@ -1,3 +1,20 @@
+# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleOCR
+# with modifications to run on MindSpore.
+#
+# 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.
+
 import logging
 
 import cv2
diff --git a/mindocr/models/backbones/blocks/magca.py b/mindocr/models/backbones/blocks/magca.py
index 7e51f5ca9..1650a5eab 100644
--- a/mindocr/models/backbones/blocks/magca.py
+++ b/mindocr/models/backbones/blocks/magca.py
@@ -1,3 +1,6 @@
+# This code is adapted from https://github.com/JiaquanYe/TableMASTER-mmocr
+# with modifications to run on MindSpore.
+
 import mindspore.nn as nn
 import mindspore.ops as ops
 from mindspore import Tensor
diff --git a/mindocr/models/backbones/layoutlmv3/layoutlmv3.py b/mindocr/models/backbones/layoutlmv3/layoutlmv3.py
index 1a1f52516..caea52da9 100644
--- a/mindocr/models/backbones/layoutlmv3/layoutlmv3.py
+++ b/mindocr/models/backbones/layoutlmv3/layoutlmv3.py
@@ -637,6 +637,8 @@ def construct(
         return (sequence_output,) + encoder_outputs[1:]
 
 
+# This code is adapted from
+# https://github.com/facebookresearch/detectron2/blob/main/detectron2/modeling/backbone/fpn.py
 class FPNForLayout(FPN):
     def __init__(self,
                  bottom_up,
diff --git a/mindocr/models/backbones/layoutxlm/configuration.py b/mindocr/models/backbones/layoutxlm/configuration.py
index ece3b3b7b..e0741c331 100644
--- a/mindocr/models/backbones/layoutxlm/configuration.py
+++ b/mindocr/models/backbones/layoutxlm/configuration.py
@@ -1,3 +1,20 @@
+# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleNLP
+# with modifications to run on MindSpore.
+#
+# 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 dataclasses import dataclass
 
 
diff --git a/mindocr/models/backbones/layoutxlm/resnet.py b/mindocr/models/backbones/layoutxlm/resnet.py
index e4ca7cd56..19a5b8431 100644
--- a/mindocr/models/backbones/layoutxlm/resnet.py
+++ b/mindocr/models/backbones/layoutxlm/resnet.py
@@ -1,3 +1,8 @@
+# This code is adapted from https://github.com/facebookresearch/detectron2
+# with modifications to run on MindSpore.
+
+# Copyright (c) Facebook, Inc. and its affiliates.
+
 from dataclasses import dataclass
 from typing import Optional
 
diff --git a/mindocr/models/backbones/layoutxlm/tokenizer.py b/mindocr/models/backbones/layoutxlm/tokenizer.py
index 739e05eee..db7868dbc 100644
--- a/mindocr/models/backbones/layoutxlm/tokenizer.py
+++ b/mindocr/models/backbones/layoutxlm/tokenizer.py
@@ -1,3 +1,21 @@
+# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+# Copyright 2018 The Google AI Language Team Authors and The HuggingFace Inc. team.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleNLP
+# with modifications to run on MindSpore.
+#
+# 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 typing import List, Optional
 
 import sentencepiece as spm
diff --git a/mindocr/models/backbones/layoutxlm/tokenizer_utils.py b/mindocr/models/backbones/layoutxlm/tokenizer_utils.py
index d1eb9cb02..d41496add 100644
--- a/mindocr/models/backbones/layoutxlm/tokenizer_utils.py
+++ b/mindocr/models/backbones/layoutxlm/tokenizer_utils.py
@@ -1,3 +1,22 @@
+# Copyright 2018 The Google AI Language Team Authors and The HuggingFace Inc. team.
+# Copyright (c) 2018, NVIDIA CORPORATION.  All rights reserved.
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleNLP
+# with modifications to run on MindSpore.
+#
+# 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.
+
 import bisect
 import io
 import itertools
diff --git a/mindocr/models/backbones/layoutxlm/tokenizer_utils_base.py b/mindocr/models/backbones/layoutxlm/tokenizer_utils_base.py
index b4870bf70..4945ce10f 100644
--- a/mindocr/models/backbones/layoutxlm/tokenizer_utils_base.py
+++ b/mindocr/models/backbones/layoutxlm/tokenizer_utils_base.py
@@ -1,3 +1,22 @@
+# Copyright 2018 The Google AI Language Team Authors and The HuggingFace Inc. team.
+# Copyright (c) 2018, NVIDIA CORPORATION. All Rights Reserved.
+# Copyright (c) 2020, PaddlePaddle Authors. All Rights Reserved.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleNLP
+# with modifications to run on MindSpore.
+#
+# 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.
+
 import copy
 import io
 import json
diff --git a/mindocr/models/backbones/layoutxlm/utils.py b/mindocr/models/backbones/layoutxlm/utils.py
index 54bff0364..a141dbe99 100644
--- a/mindocr/models/backbones/layoutxlm/utils.py
+++ b/mindocr/models/backbones/layoutxlm/utils.py
@@ -1,3 +1,20 @@
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleNLP
+# with modifications to run on MindSpore.
+#
+# 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.
+
 import functools
 import inspect
 import os
diff --git a/mindocr/models/backbones/layoutxlm/visual_backbone.py b/mindocr/models/backbones/layoutxlm/visual_backbone.py
index 4155c6212..f3b1f7d10 100644
--- a/mindocr/models/backbones/layoutxlm/visual_backbone.py
+++ b/mindocr/models/backbones/layoutxlm/visual_backbone.py
@@ -1,3 +1,8 @@
+# This code is adapted from https://github.com/facebookresearch/detectron2
+# with modifications to run on MindSpore.
+
+# Copyright (c) Facebook, Inc. and its affiliates.
+
 import math
 import os
 
diff --git a/mindocr/models/backbones/layoutxlm/vocab.py b/mindocr/models/backbones/layoutxlm/vocab.py
index 02c6b7958..5809d77a9 100644
--- a/mindocr/models/backbones/layoutxlm/vocab.py
+++ b/mindocr/models/backbones/layoutxlm/vocab.py
@@ -1,3 +1,20 @@
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleNLP
+# with modifications to run on MindSpore.
+#
+# 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.
+
 import collections
 import io
 import json
diff --git a/mindocr/models/backbones/mindcv_models/coat.py b/mindocr/models/backbones/mindcv_models/coat.py
index 0980c808e..b841f15db 100644
--- a/mindocr/models/backbones/mindcv_models/coat.py
+++ b/mindocr/models/backbones/mindcv_models/coat.py
@@ -1,5 +1,12 @@
+# This code is adapted from https://github.com/huggingface/pytorch-image-models
+# with modifications to run on MindSpore.
 """
 CoaT architecture.
+
+Paper: Co-Scale Conv-Attentional Image Transformers - https://arxiv.org/abs/2104.06399
+
+Official CoaT code at: https://github.com/mlpc-ucsd/CoaT
+
 Modified from timm/models/vision_transformer.py
 """
 from typing import Union
diff --git a/mindocr/models/backbones/mindcv_models/crossvit.py b/mindocr/models/backbones/mindcv_models/crossvit.py
index 5b9b156a6..5f3f5d31f 100644
--- a/mindocr/models/backbones/mindcv_models/crossvit.py
+++ b/mindocr/models/backbones/mindcv_models/crossvit.py
@@ -1,7 +1,27 @@
+# This code is adapted from https://github.com/huggingface/pytorch-image-models
+# with modifications to run on MindSpore.
+
+""" CrossViT Model
+
+@inproceedings{
+    chen2021crossvit,
+    title={{CrossViT: Cross-Attention Multi-Scale Vision Transformer for Image Classification}},
+    author={Chun-Fu (Richard) Chen and Quanfu Fan and Rameswar Panda},
+    booktitle={International Conference on Computer Vision (ICCV)},
+    year={2021}
+}
+
+Paper link: https://arxiv.org/abs/2103.14899
+Original code: https://github.com/IBM/CrossViT/blob/main/models/crossvit.py
+
+NOTE: model names have been renamed from originals to represent actual input res all *_224 -> *_240 and *_384 -> *_408
+
+Modifications and additions for timm hacked together by / Copyright 2021, Ross Wightman
+Modified from Timm. https://github.com/rwightman/pytorch-image-models/blob/master/timm/models/vision_transformer.py
 """
-MindSpore implementation of `crossvit`.
-Refer to crossvit: Cross-Attention Multi-Scale Vision Transformer for Image Classification
-"""
+
+# Copyright IBM All Rights Reserved.
+# SPDX-License-Identifier: Apache-2.0
 
 import numpy as np
 
diff --git a/mindocr/models/backbones/mindcv_models/densenet.py b/mindocr/models/backbones/mindcv_models/densenet.py
index 51e1d705d..e5c63a7a5 100644
--- a/mindocr/models/backbones/mindcv_models/densenet.py
+++ b/mindocr/models/backbones/mindcv_models/densenet.py
@@ -1,6 +1,9 @@
-"""
-MindSpore implementation of `DenseNet`.
-Refer to: Densely Connected Convolutional Networks
+# This code is adapted from https://github.com/huggingface/pytorch-image-models
+# with modifications to run on MindSpore.
+
+"""Pytorch Densenet implementation w/ tweaks
+This file is a copy of https://github.com/pytorch/vision 'densenet.py' (BSD-3-Clause) with
+fixed kwargs passthrough and addition of dynamic global avg/max pool.
 """
 
 import math
diff --git a/mindocr/models/backbones/mindcv_models/efficientnet.py b/mindocr/models/backbones/mindcv_models/efficientnet.py
index 3216d3d19..83c21d33e 100644
--- a/mindocr/models/backbones/mindcv_models/efficientnet.py
+++ b/mindocr/models/backbones/mindcv_models/efficientnet.py
@@ -1,4 +1,43 @@
-"""EfficientNet Architecture."""
+# This code is adapted from https://github.com/huggingface/pytorch-image-models
+# with modifications to run on MindSpore.
+
+""" The EfficientNet Family in PyTorch
+
+An implementation of EfficienNet that covers variety of related models with efficient architectures:
+
+* EfficientNet-V2
+  - `EfficientNetV2: Smaller Models and Faster Training` - https://arxiv.org/abs/2104.00298
+
+* EfficientNet (B0-B8, L2 + Tensorflow pretrained AutoAug/RandAug/AdvProp/NoisyStudent weight ports)
+  - EfficientNet: Rethinking Model Scaling for CNNs - https://arxiv.org/abs/1905.11946
+  - CondConv: Conditionally Parameterized Convolutions for Efficient Inference - https://arxiv.org/abs/1904.04971
+  - Adversarial Examples Improve Image Recognition - https://arxiv.org/abs/1911.09665
+  - Self-training with Noisy Student improves ImageNet classification - https://arxiv.org/abs/1911.04252
+
+* MixNet (Small, Medium, and Large)
+  - MixConv: Mixed Depthwise Convolutional Kernels - https://arxiv.org/abs/1907.09595
+
+* MNasNet B1, A1 (SE), Small
+  - MnasNet: Platform-Aware Neural Architecture Search for Mobile - https://arxiv.org/abs/1807.11626
+
+* FBNet-C
+  - FBNet: Hardware-Aware Efficient ConvNet Design via Differentiable NAS - https://arxiv.org/abs/1812.03443
+
+* Single-Path NAS Pixel1
+  - Single-Path NAS: Designing Hardware-Efficient ConvNets - https://arxiv.org/abs/1904.02877
+
+* TinyNet
+    - Model Rubik's Cube: Twisting Resolution, Depth and Width for TinyNets - https://arxiv.org/abs/2010.14819
+    - Definitions & weights borrowed from https://github.com/huawei-noah/CV-Backbones/tree/master/tinynet_pytorch
+
+* And likely more...
+
+The majority of the above models (EfficientNet*, MixNet, MnasNet) and original weights were made available
+by Mingxing Tan, Quoc Le, and other members of their Google Brain team. Thanks for consistently releasing
+the models and weights open source!
+
+Hacked together by / Copyright 2019, Ross Wightman
+"""
 
 import copy
 import math
diff --git a/mindocr/models/backbones/mindcv_models/ghostnet.py b/mindocr/models/backbones/mindcv_models/ghostnet.py
index e69f88b29..de43f6e47 100644
--- a/mindocr/models/backbones/mindcv_models/ghostnet.py
+++ b/mindocr/models/backbones/mindcv_models/ghostnet.py
@@ -1,4 +1,21 @@
-"""MindSpore implementation of `GhostNet`."""
+# This code is adapted from https://github.com/huggingface/pytorch-image-models
+# with modifications to run on MindSpore.
+
+"""
+An implementation of GhostNet & GhostNetV2 Models as defined in:
+GhostNet: More Features from Cheap Operations. https://arxiv.org/abs/1911.11907
+GhostNetV2: Enhance Cheap Operation with Long-Range Attention.
+https://proceedings.neurips.cc/paper_files/paper/2022/file/40b60852a4abdaa696b5a1a78da34635-Paper-Conference.pdf
+GhostNetV3: Exploring the Training Strategies for Compact Models. https://arxiv.org/abs/2404.11202
+
+The train script & code of models at:
+Original model:
+https://github.com/huawei-noah/CV-backbones/tree/master/ghostnet_pytorch
+Original model:
+https://github.com/huawei-noah/Efficient-AI-Backbones/blob/master/ghostnetv2_pytorch/model/ghostnetv2_torch.py
+Original model:
+https://github.com/huawei-noah/Efficient-AI-Backbones/blob/master/ghostnetv3_pytorch/ghostnetv3.py
+"""
 
 import math
 
diff --git a/mindocr/models/backbones/mindcv_models/hrnet.py b/mindocr/models/backbones/mindcv_models/hrnet.py
index 97d882672..a71051860 100644
--- a/mindocr/models/backbones/mindcv_models/hrnet.py
+++ b/mindocr/models/backbones/mindcv_models/hrnet.py
@@ -1,6 +1,14 @@
-"""
-MindSpore implementation of `HRNet`.
-Refer to Deep High-Resolution Representation Learning for Visual Recognition
+# This code is adapted from https://github.com/huggingface/pytorch-image-models
+# with modifications to run on MindSpore.
+""" HRNet
+
+Copied from https://github.com/HRNet/HRNet-Image-Classification
+
+Original header:
+  Copyright (c) Microsoft
+  Licensed under the MIT License.
+  Written by Bin Xiao (Bin.Xiao@microsoft.com)
+  Modified by Ke Sun (sunk@mail.ustc.edu.cn)
 """
 from typing import Any, Dict, List, Optional, Tuple, Type, Union
 
diff --git a/mindocr/models/backbones/mindcv_models/layers/selective_kernel.py b/mindocr/models/backbones/mindcv_models/layers/selective_kernel.py
index 3dcc1409a..19e180564 100644
--- a/mindocr/models/backbones/mindcv_models/layers/selective_kernel.py
+++ b/mindocr/models/backbones/mindcv_models/layers/selective_kernel.py
@@ -1,5 +1,10 @@
+# This code is adapted from https://github.com/huggingface/pytorch-image-models
+# with modifications to run on MindSpore.
 """ Selective Kernel Convolution/Attention
+
 Paper: Selective Kernel Networks (https://arxiv.org/abs/1903.06586)
+
+Hacked together by / Copyright 2020 Ross Wightman
 """
 from typing import List, Optional, Union
 
diff --git a/mindocr/models/backbones/mindcv_models/pit.py b/mindocr/models/backbones/mindcv_models/pit.py
index 91c255f82..a10df1f4a 100644
--- a/mindocr/models/backbones/mindcv_models/pit.py
+++ b/mindocr/models/backbones/mindcv_models/pit.py
@@ -1,7 +1,18 @@
+# This code is adapted from https://github.com/huggingface/pytorch-image-models
+# with modifications to run on MindSpore.
+
+""" Pooling-based Vision Transformer (PiT) in MindSpore
+
+A MindSpore implement of Pooling-based Vision Transformers as described in
+'Rethinking Spatial Dimensions of Vision Transformers' - https://arxiv.org/abs/2103.16302
+
+This code was adapted from the original version at https://github.com/naver-ai/pit, original copyright below.
+
+Modifications for timm by / Copyright 2020 Ross Wightman
 """
-MindSpore implementation of `PiT`.
-Refer to Rethinking Spatial Dimensions of Vision Transformers.
-"""
+# PiT
+# Copyright 2021-present NAVER Corp.
+# Apache License v2.0
 
 import math
 from typing import List
diff --git a/mindocr/models/backbones/mindcv_models/pnasnet.py b/mindocr/models/backbones/mindcv_models/pnasnet.py
index 651b567b4..d3a5d653f 100644
--- a/mindocr/models/backbones/mindcv_models/pnasnet.py
+++ b/mindocr/models/backbones/mindcv_models/pnasnet.py
@@ -1,6 +1,12 @@
+# This code is adapted from https://github.com/huggingface/pytorch-image-models
+# with modifications to run on MindSpore.
+
 """
-MindSpore implementation of pnasnet.
-Refer to Progressive Neural Architecture Search.
+ pnasnet5large implementation grabbed from Cadene's pretrained models
+ Additional credit to https://github.com/creafz
+
+ https://github.com/Cadene/pretrained-models.pytorch/blob/master/pretrainedmodels/models/pnasnet.py
+
 """
 
 import math
diff --git a/mindocr/models/backbones/mindcv_models/poolformer.py b/mindocr/models/backbones/mindcv_models/poolformer.py
index b61c623a4..b135dace8 100644
--- a/mindocr/models/backbones/mindcv_models/poolformer.py
+++ b/mindocr/models/backbones/mindcv_models/poolformer.py
@@ -1,7 +1,27 @@
+# This code is adapted from https://github.com/huggingface/pytorch-image-models
+# with modifications to run on MindSpore.
+
+""" PoolFormer implementation
+
+Paper: `PoolFormer: MetaFormer is Actually What You Need for Vision` - https://arxiv.org/abs/2111.11418
+
+Code adapted from official impl at https://github.com/sail-sg/poolformer, original copyright in comment below
+
+Modifications and additions for timm by / Copyright 2022, Ross Wightman
 """
-MindSpore implementation of `poolformer`.
-Refer to PoolFormer: MetaFormer Is Actually What You Need for Vision.
-"""
+# Copyright 2021 Garena Online Private Limited
+#
+# 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.
 
 import collections.abc
 from itertools import repeat
diff --git a/mindocr/models/backbones/mindcv_models/pvtv2.py b/mindocr/models/backbones/mindcv_models/pvtv2.py
index c2f621cb6..96d56f817 100644
--- a/mindocr/models/backbones/mindcv_models/pvtv2.py
+++ b/mindocr/models/backbones/mindcv_models/pvtv2.py
@@ -1,6 +1,21 @@
-"""
-MindSpore implementation of `PVTv2`.
-Refer to PVTv2: PVTv2: Improved Baselines with Pyramid Vision Transformer
+# This code is adapted from https://github.com/huggingface/pytorch-image-models
+# with modifications to run on MindSpore.
+
+""" Pyramid Vision Transformer v2
+
+@misc{wang2021pvtv2,
+      title={PVTv2: Improved Baselines with Pyramid Vision Transformer},
+      author={Wenhai Wang and Enze Xie and Xiang Li and Deng-Ping Fan and Kaitao Song and Ding Liang and
+        Tong Lu and Ping Luo and Ling Shao},
+      year={2021},
+      eprint={2106.13797},
+      archivePrefix={arXiv},
+      primaryClass={cs.CV}
+}
+
+Based on Apache 2.0 licensed code at https://github.com/whai362/PVT
+
+Modifications and timm support by / Copyright 2022, Ross Wightman
 """
 import math
 from functools import partial
diff --git a/mindocr/models/backbones/mindcv_models/registry.py b/mindocr/models/backbones/mindcv_models/registry.py
index d4e3018ba..5d502db6e 100644
--- a/mindocr/models/backbones/mindcv_models/registry.py
+++ b/mindocr/models/backbones/mindcv_models/registry.py
@@ -1,4 +1,9 @@
-"""model registry and list"""
+# This code is adapted from https://github.com/huggingface/pytorch-image-models
+# with modifications to run on MindSpore.
+""" Model Registry
+Hacked together by / Copyright 2020 Ross Wightman
+"""
+
 import fnmatch
 import sys
 from collections import defaultdict
diff --git a/mindocr/models/backbones/mindcv_models/resnest.py b/mindocr/models/backbones/mindcv_models/resnest.py
index a07344598..2cc172885 100644
--- a/mindocr/models/backbones/mindcv_models/resnest.py
+++ b/mindocr/models/backbones/mindcv_models/resnest.py
@@ -1,6 +1,13 @@
-"""
-MindSpore implementation of `ResNeSt`.
-Refer to ResNeSt: Split-Attention Networks.
+# This code is adapted from https://github.com/huggingface/pytorch-image-models
+# with modifications to run on MindSpore.
+
+""" ResNeSt Models
+
+Paper: `ResNeSt: Split-Attention Networks` - https://arxiv.org/abs/2004.08955
+
+Adapted from original PyTorch impl w/ weights at https://github.com/zhanghang1989/ResNeSt by Hang Zhang
+
+Modified for torchscript compat, and consistency with timm by Ross Wightman
 """
 
 from typing import List, Optional, Type
diff --git a/mindocr/models/backbones/mindcv_models/senet.py b/mindocr/models/backbones/mindcv_models/senet.py
index 8ccc69ade..64be110ba 100644
--- a/mindocr/models/backbones/mindcv_models/senet.py
+++ b/mindocr/models/backbones/mindcv_models/senet.py
@@ -1,6 +1,17 @@
+# This code is adapted from https://github.com/huggingface/pytorch-image-models
+# with modifications to run on MindSpore.
 """
-MindSpore implementation of `SENet`.
-Refer to Squeeze-and-Excitation Networks.
+SEResNet implementation from Cadene's pretrained models
+https://github.com/Cadene/pretrained-models.pytorch/blob/master/pretrainedmodels/models/senet.py
+Additional credit to https://github.com/creafz
+
+Original model: https://github.com/hujie-frank/SENet
+
+ResNet code gently borrowed from
+https://github.com/pytorch/vision/blob/master/torchvision/models/resnet.py
+
+FIXME I'm deprecating this model and moving them to ResNet as I don't want to maintain duplicate
+support for extras like dilation, switchable BN/activations, feature extraction, etc that don't exist here.
 """
 
 import math
diff --git a/mindocr/models/backbones/mindcv_models/xception.py b/mindocr/models/backbones/mindcv_models/xception.py
index 6fd1b953d..b6099cedb 100644
--- a/mindocr/models/backbones/mindcv_models/xception.py
+++ b/mindocr/models/backbones/mindcv_models/xception.py
@@ -1,6 +1,27 @@
+# This code is adapted from https://github.com/huggingface/pytorch-image-models
+# with modifications to run on MindSpore.
 """
-MindSpore implementation of Xception.
-Refer to Xception: Deep Learning with Depthwise Separable Convolutions.
+Ported to MindSpore thanks to [tstandley](https://github.com/tstandley/Xception-PyTorch)
+
+@author: tstandley
+Adapted by cadene
+
+Creates an Xception Model as defined in:
+
+Francois Chollet
+Xception: Deep Learning with Depthwise Separable Convolutions
+https://arxiv.org/pdf/1610.02357.pdf
+
+This weights ported from the Keras implementation. Achieves the following performance on the validation set:
+
+Loss:0.9173 Prec@1:78.892 Prec@5:94.292
+
+REMEMBER to set your image size to 3x299x299 for both test and validation
+
+normalize = transforms.Normalize(mean=[0.5, 0.5, 0.5],
+                                  std=[0.5, 0.5, 0.5])
+
+The resize parameter of the validation transform should be 333, and make sure to center crop at 299x299
 """
 
 import mindspore.common.initializer as init
diff --git a/mindocr/models/backbones/mindcv_models/xcit.py b/mindocr/models/backbones/mindcv_models/xcit.py
index 8d2d4b363..527be45ad 100644
--- a/mindocr/models/backbones/mindcv_models/xcit.py
+++ b/mindocr/models/backbones/mindcv_models/xcit.py
@@ -1,7 +1,18 @@
+# This code is adapted from https://github.com/huggingface/pytorch-image-models
+# with modifications to run on MindSpore.
+
+""" Cross-Covariance Image Transformer (XCiT) in MindSpore
+
+Paper:
+    - https://arxiv.org/abs/2106.09681
+
+Same as the official implementation, with some minor adaptations, original copyright below
+    - https://github.com/facebookresearch/xcit/blob/master/xcit.py
+
+Modifications and additions for timm hacked together by / Copyright 2021, Ross Wightman
 """
-MindSpore implementation of XCiT
-Refer to: XCiT: Cross-Covariance Image Transformers
-"""
+# Copyright (c) 2015-present, Facebook, Inc.
+# All rights reserved.
 from functools import partial
 
 import numpy as np
diff --git a/mindocr/models/backbones/rec_resnet.py b/mindocr/models/backbones/rec_resnet.py
index f2ed29418..074522a66 100644
--- a/mindocr/models/backbones/rec_resnet.py
+++ b/mindocr/models/backbones/rec_resnet.py
@@ -1,3 +1,25 @@
+# copyright (c) 2021 PaddlePaddle Authors. All Rights Reserve.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleOCR
+# with modifications to run on MindSpore.
+#
+# 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/open-mmlab/mmocr/blob/main/mmocr/models/textrecog/layers/conv_layer.py
+https://github.com/open-mmlab/mmocr/blob/main/mmocr/models/textrecog/backbones/resnet31_ocr.py
+"""
+
 from mindspore import nn
 
 from ._registry import register_backbone, register_backbone_class
diff --git a/mindocr/models/backbones/rec_svtr_enhance.py b/mindocr/models/backbones/rec_svtr_enhance.py
index 418275ea7..c24fb6a12 100644
--- a/mindocr/models/backbones/rec_svtr_enhance.py
+++ b/mindocr/models/backbones/rec_svtr_enhance.py
@@ -1,3 +1,24 @@
+# copyright (c) 2021 PaddlePaddle Authors. All Rights Reserve.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleOCR
+# with modifications to run on MindSpore.
+#
+# 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/PaddlePaddle/PaddleClas/blob/develop/ppcls/arch/backbone/legendary_models/pp_lcnet.py
+
+
 from mindspore import nn
 
 from ..utils.attention_cells import SEModule
diff --git a/mindocr/models/backbones/transformer_common/layer.py b/mindocr/models/backbones/transformer_common/layer.py
index 1ebc25c97..f2e441e73 100644
--- a/mindocr/models/backbones/transformer_common/layer.py
+++ b/mindocr/models/backbones/transformer_common/layer.py
@@ -1,3 +1,21 @@
+# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+# Copyright 2021 Microsoft Research and The HuggingFace Inc. team. All rights reserved.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleOCR
+# with modifications to run on MindSpore.
+#
+# 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.
+
 import math
 
 import numpy as np
diff --git a/mindocr/nlp/generation/beam_search.py b/mindocr/nlp/generation/beam_search.py
index a5c931156..851377c34 100644
--- a/mindocr/nlp/generation/beam_search.py
+++ b/mindocr/nlp/generation/beam_search.py
@@ -1,3 +1,21 @@
+# Copyright 2020 The HuggingFace Team Inc.
+#
+# This code is adapted from https://github.com/huggingface/transformers
+# with modifications to run on MindSpore.
+#
+# 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 clone 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.
+
+
 """Beam search for text generation."""
 from abc import ABC, abstractmethod
 from collections import UserDict
diff --git a/mindocr/nlp/llm/qwen_tokenizer.py b/mindocr/nlp/llm/qwen_tokenizer.py
index 8ad4224d2..9434b3b7f 100644
--- a/mindocr/nlp/llm/qwen_tokenizer.py
+++ b/mindocr/nlp/llm/qwen_tokenizer.py
@@ -1,3 +1,20 @@
+# Copyright 2020 The HuggingFace Inc. team.
+#
+# This code is adapted from https://github.com/huggingface/transformers
+# with modifications to run on MindSpore.
+#
+# 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.
+
 import base64
 import unicodedata
 from typing import Collection, Dict, List, Set, Union
diff --git a/mindocr/postprocess/det_db_postprocess.py b/mindocr/postprocess/det_db_postprocess.py
index 6e10c787e..8d8763677 100644
--- a/mindocr/postprocess/det_db_postprocess.py
+++ b/mindocr/postprocess/det_db_postprocess.py
@@ -1,3 +1,6 @@
+# This code is adapted from https://github.com/WenmuZhou/DBNet.pytorch
+# with modifications to run on MindSpore.
+
 from typing import List, Tuple, Union
 
 import cv2
diff --git a/mindocr/postprocess/det_east_postprocess.py b/mindocr/postprocess/det_east_postprocess.py
index 7b08bc5e3..53d112e03 100644
--- a/mindocr/postprocess/det_east_postprocess.py
+++ b/mindocr/postprocess/det_east_postprocess.py
@@ -1,3 +1,6 @@
+# This code is adapted from https://github.com/sakurariven/east
+# with modifications to run on MindSpore.
+
 import math
 
 import numpy as np
diff --git a/mindocr/postprocess/det_pse_postprocess.py b/mindocr/postprocess/det_pse_postprocess.py
index ec8397256..5ec120b88 100644
--- a/mindocr/postprocess/det_pse_postprocess.py
+++ b/mindocr/postprocess/det_pse_postprocess.py
@@ -1,3 +1,6 @@
+# This code is adapted from https://github.com/whai362/PSENet
+# with modifications to run on MindSpore.
+
 import cv2
 import numpy as np
 
diff --git a/mindocr/postprocess/kie_ser_postprocess.py b/mindocr/postprocess/kie_ser_postprocess.py
index 04bf86c6f..9e51691c8 100644
--- a/mindocr/postprocess/kie_ser_postprocess.py
+++ b/mindocr/postprocess/kie_ser_postprocess.py
@@ -1,3 +1,20 @@
+# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleOCR
+# with modifications to run on MindSpore.
+#
+# 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.
+
 import numpy as np
 
 import mindspore as ms
diff --git a/mindocr/postprocess/pse/pse.pyx b/mindocr/postprocess/pse/pse.pyx
index 8b7c4fd58..87a39d8c8 100644
--- a/mindocr/postprocess/pse/pse.pyx
+++ b/mindocr/postprocess/pse/pse.pyx
@@ -1,3 +1,4 @@
+# This code is adapted from https://github.com/PaddlePaddle/PaddleOCR
 
 import cv2
 import numpy as np
diff --git a/mindocr/postprocess/rec_postprocess.py b/mindocr/postprocess/rec_postprocess.py
index 1569074df..dcf05c679 100644
--- a/mindocr/postprocess/rec_postprocess.py
+++ b/mindocr/postprocess/rec_postprocess.py
@@ -1,5 +1,19 @@
-"""
-"""
+# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleOCR
+# with modifications to run on MindSpore.
+#
+# 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.
 import logging
 import re
 from typing import Any, Dict, List, Optional, Tuple, Union
diff --git a/mindocr/postprocess/table_postprocess.py b/mindocr/postprocess/table_postprocess.py
index 6131d3206..f9bc7ffe1 100644
--- a/mindocr/postprocess/table_postprocess.py
+++ b/mindocr/postprocess/table_postprocess.py
@@ -1,3 +1,20 @@
+# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleOCR
+# with modifications to run on MindSpore.
+#
+# 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.
+
 import re
 
 import numpy as np
diff --git a/mindocr/utils/visualize.py b/mindocr/utils/visualize.py
index 3db18bb1e..bcf4eabe1 100644
--- a/mindocr/utils/visualize.py
+++ b/mindocr/utils/visualize.py
@@ -1,3 +1,20 @@
+# copyright (c) 2021 PaddlePaddle Authors. All Rights Reserve.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleOCR
+# with modifications to run on MindSpore.
+#
+# 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.
+
 import logging
 import math
 import os
diff --git a/tools/infer/text/utils/matcher.py b/tools/infer/text/utils/matcher.py
index 41a77470f..fe13df173 100644
--- a/tools/infer/text/utils/matcher.py
+++ b/tools/infer/text/utils/matcher.py
@@ -1,3 +1,5 @@
+# This code is adapted from https://github.com/JiaquanYe/TableMaster-mmocr
+
 import copy
 import glob
 import math
diff --git a/tools/infer/text/utils/table_process.py b/tools/infer/text/utils/table_process.py
index 045a0bb10..23f57221b 100644
--- a/tools/infer/text/utils/table_process.py
+++ b/tools/infer/text/utils/table_process.py
@@ -1,3 +1,22 @@
+# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+#
+# This code is adapted from https://github.com/PaddlePaddle/PaddleOCR
+#
+# 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/weizwx/html2docx/blob/master/htmldocx/h2d.py
+"""
+
 import re
 from html.parser import HTMLParser