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diff --git a/compiler/moco-tf/src/Annotations/PadData.h b/compiler/moco-tf/src/Annotations/PadData.h
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+/*
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd. 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.
+ */
+
+#ifndef __MOCO_TF_PAD_DATA_H__
+#define __MOCO_TF_PAD_DATA_H__
+
+#include <loco.h>
+
+namespace moco
+{
+namespace tf
+{
+
+/**
+ * @brief PadData holds temporary 'pad' attribute of TFConv2D
+ *
+ * @note  This holds the same pad attribute that exist in Canonical Conv2D
+ *        to simplify Canonicalizing step of TFConv2D to Conv2D conversion.
+ *        Values of 'pad' will be calculated in FixPaddingTransformation.
+ *        PadData holds Padding2D where PaddingData holds 'padding' as a string.
+ */
+class PadData : public loco::NodeAnnotation
+{
+public:
+  PadData() = default;
+
+public:
+  const loco::Padding2D *pad(void) const { return &_pad; }
+  loco::Padding2D *pad(void) { return &_pad; }
+
+private:
+  loco::Padding2D _pad;
+};
+
+} // namespace tf
+} // namespace moco
+
+#endif // __MOCO_TF_PAD_DATA_H__