diff --git a/PPOCRLabel/PPOCRLabel.py b/PPOCRLabel/PPOCRLabel.py
index 14e688c5980388c5bfe3d2245b8d35d38bec3f5e..ce1ccb693f99546027798f6a62bebe1ce64fff6d 100644
--- a/PPOCRLabel/PPOCRLabel.py
+++ b/PPOCRLabel/PPOCRLabel.py
@@ -376,7 +376,7 @@ class MainWindow(QMainWindow, WindowMixin):
         #                 'space', 'verify', getStr('verifyImgDetail'))
 
         save = action(getStr('save'), self.saveFile,
-                      'Ctrl+S', 'verify', getStr('saveDetail'), enabled=False)
+                      'Ctrl+V', 'verify', getStr('saveDetail'), enabled=False)
 
         alcm = action(getStr('choosemodel'), self.autolcm,
                                         'Ctrl+M', 'next', getStr('tipchoosemodel'))
@@ -400,7 +400,7 @@ class MainWindow(QMainWindow, WindowMixin):
         delete = action(getStr('delBox'), self.deleteSelectedShape,
                         'Delete', 'delete', getStr('delBoxDetail'), enabled=False)
         copy = action(getStr('dupBox'), self.copySelectedShape,
-                      'Ctrl+D', 'copy', getStr('dupBoxDetail'),
+                      'Ctrl+C', 'copy', getStr('dupBoxDetail'),
                       enabled=False)
 
         hideAll = action(getStr('hideBox'), partial(self.togglePolygons, False),
@@ -460,10 +460,10 @@ class MainWindow(QMainWindow, WindowMixin):
                             'p', 'new', 'Creat Polygon', enabled=True)
 
         saveRec = action(getStr('saveRec'), self.saveRecResult,
-                            '', 'saveRec', getStr('saveRec'), enabled=False)
+                            '', 'save', getStr('saveRec'), enabled=False)
 
         saveLabel = action(getStr('saveLabel'), self.saveLabelFile, #
-                            '', 'save', getStr('saveLabel'), enabled=False)
+                            'Ctrl+S', 'save', getStr('saveLabel'), enabled=False)
 
         self.editButton.setDefaultAction(edit)
         self.newButton.setDefaultAction(create)
diff --git a/PPOCRLabel/README.md b/PPOCRLabel/README.md
index def9b2dab732960c524c97eb5d39e83e27a8d253..219d198fd9b16860ab8d5446d28561307bc846b8 100644
--- a/PPOCRLabel/README.md
+++ b/PPOCRLabel/README.md
@@ -87,7 +87,7 @@ python3 PPOCRLabel.py --lang ch
 ### 错误提示
 - 如果同时使用whl包安装了paddleocr，其优先级大于通过paddleocr.py调用PaddleOCR类，whl包未更新时会导致程序异常。
 - PPOCRLabel**不支持对中文文件名**的图片进行自动标注。
-- 如果您在打开软件过程中出现**objc[XXXXX]**开头的错误，证明您的opencv版本太高，建议安装4.2版本：
+- 对于Linux用户，如果您在打开软件过程中出现**objc[XXXXX]**开头的错误，证明您的opencv版本太高，建议安装4.2版本：
 	```
 	pip install opencv-python==4.2.0.32
 	```
diff --git a/PPOCRLabel/README_en.md b/PPOCRLabel/README_en.md
index 033be63ecda310d2e00d344e51e62beae63e9864..42ded6b0eacb643469eb6869fa6ff5dddf85f9b7 100644
--- a/PPOCRLabel/README_en.md
+++ b/PPOCRLabel/README_en.md
@@ -109,7 +109,7 @@ For some data that are difficult to recognize, the recognition results will not
 
 - If paddleocr is installed with whl, it has a higher priority than calling PaddleOCR class with paddleocr.py, which may cause an exception if whl package is not updated.
 
-- If you get an error starting with **objc[XXXXX]** when opening the software, it proves that your opencv version is too high. It is recommended to install version 4.2:
+- For Linux users, if you get an error starting with **objc[XXXXX]** when opening the software, it proves that your opencv version is too high. It is recommended to install version 4.2:
 
 	```
 	pip install opencv-python==4.2.0.32
diff --git a/doc/joinus.PNG b/doc/joinus.PNG
index a6e947489831d90a841c3bb6f21596d5dac7e1ac..93aa0ffa747d76a9383f5d1c3d49ba4f4f961836 100644
Binary files a/doc/joinus.PNG and b/doc/joinus.PNG differ