diff --git a/product/tablet/src/main/ets/AbilityStage.ts b/product/tablet/src/main/ets/AbilityStage.ts
index 9eb7993..71e62c4 100644
--- a/product/tablet/src/main/ets/AbilityStage.ts
+++ b/product/tablet/src/main/ets/AbilityStage.ts
@@ -1,3 +1,18 @@
+/**
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * 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 AbilityStage from "@ohos.application.AbilityStage"
 
 export default class MyAbilityStage extends AbilityStage {
diff --git a/product/tablet/src/main/ets/MainAbility/MainAbility.ts b/product/tablet/src/main/ets/MainAbility/MainAbility.ts
index 6b972f3..c15cc67 100644
--- a/product/tablet/src/main/ets/MainAbility/MainAbility.ts
+++ b/product/tablet/src/main/ets/MainAbility/MainAbility.ts
@@ -1,3 +1,18 @@
+/**
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * 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 Ability from '@ohos.application.Ability'
 
 export default class MainAbility extends Ability {
diff --git a/product/tablet/src/main/resources/rawfile/text_format_manager.js b/product/tablet/src/main/resources/rawfile/text_format_manager.js
index 06549be..bf39392 100644
--- a/product/tablet/src/main/resources/rawfile/text_format_manager.js
+++ b/product/tablet/src/main/resources/rawfile/text_format_manager.js
@@ -1,3 +1,18 @@
+/**
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * 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.
+ */
+
 var mNeedToUpdateToolbarState = false;
 
 function command(name) {