diff --git a/src/common/annotation-manager.js b/src/common/annotation-manager.js
index 183d9210..66d9e75b 100644
--- a/src/common/annotation-manager.js
+++ b/src/common/annotation-manager.js
@@ -81,7 +81,7 @@ class AnnotationManager {
 		this.render();
 	}
 
-	//
+	// 추가 시 post api 호출
 	addAnnotation(annotation) {
 		console.log(annotation)
 		if (this._readOnly) {
diff --git a/src/common/components/view/selection-popup.js b/src/common/components/view/selection-popup.js
index 7d8d8775..73a2953e 100644
--- a/src/common/components/view/selection-popup.js
+++ b/src/common/components/view/selection-popup.js
@@ -11,9 +11,9 @@ function SelectionPopup(props) {
 		props.onAddAnnotation({ ...props.params.annotation, color });
 	}
 
+	// Push to Chat 버튼 클릭시 드래그한 텍스트 전송
 	function handleAddToNote() {
 		// props.onAddToNote([props.params.annotation]);
-		// console.log("check!!!", props.params.annotation.text)
 		window.parent.postMessage({selectedText: props.params.annotation.text}, '*')
 	}
 
diff --git a/src/common/reader.js b/src/common/reader.js
index d3425e0a..c1803d6d 100644
--- a/src/common/reader.js
+++ b/src/common/reader.js
@@ -288,12 +288,14 @@ class Reader {
 		}
 	}
 
+	// 추가: 연두 서비스에서 답변 내용 export 시 조테로 뷰어에 노트 업데이트
 	updateSettings(annotation) {
 		if (typeof annotation !== 'undefined') {
 			this._annotationManager.addAnnotation(annotation)
 		}
 	}
 
+	// 추가: 탭 변경시 
 	changePaper(annotation) {
 		this._annotationManager._annotations = annotation
 		this._annotationManager.render()
diff --git a/src/en-us.strings.js b/src/en-us.strings.js
index b5ed7b39..85030925 100644
--- a/src/en-us.strings.js
+++ b/src/en-us.strings.js
@@ -108,7 +108,7 @@ export default {
 	'pdfReader.draw': 'Draw',
 	'pdfReader.erase': 'Erase',
 	'pdfReader.pickColor': 'Pick a Color',
-	'pdfReader.addToNote': 'Chat with AI',
+	'pdfReader.addToNote': 'Push to Chat',
 	'pdfReader.zoomIn': 'Zoom In',
 	'pdfReader.zoomOut': 'Zoom Out',
 	'pdfReader.zoomReset': 'Reset Zoom',
diff --git a/src/index.dev.js b/src/index.dev.js
index a1480268..0af76d6c 100644
--- a/src/index.dev.js
+++ b/src/index.dev.js
@@ -8,6 +8,7 @@ import { putApi, deleteApi } from './custom/utils/apiFetch';
 
 window.dev = true;
 
+// 추가: api 연결
 let api = '';
 if (process.env.NODE_ENV === 'development'){
 	api = 'https://be.yeondoo.net'
@@ -21,6 +22,7 @@ let reader
 
 let chatNoteList = []
 
+// 추가: iframe 연동
 const receiveBasicInfo = async(e) => {
 	if (e.data.workspaceId) {
 		sessionStorage.setItem('workspaceId', e.data.workspaceId)
@@ -70,17 +72,13 @@ const receiveBasicInfo = async(e) => {
 		
 		//createReader(paperId, [...paperItemsWithTag, e.data.chatNote])
 	}
-	// if (e.data.needPaperIndex) {
-	// 	reader.
-	// 	window.parent.postMessage({pageIndex: 0}, '*')
-	// }
 }
 
 window.addEventListener("message", receiveBasicInfo);
 
 window.parent.postMessage({isPdfRender: true}, '*')
 		
-
+// 변경: createReader 파라미터 추가
 async function createReader(paperId, paperItems) {
 	if (window._reader) {
 		throw new Error('Reader is already initialized');
@@ -98,10 +96,9 @@ async function createReader(paperId, paperItems) {
 	else if (type === 'snapshot') {
 		demo = snapshot;
 	}
+	// 변경: pdf 주소 받기
 	let res = await fetch(`https://browse.arxiv.org/pdf/${paperId}.pdf`);
-	// console.log("hihi",Number(sessionStorage.getItem('workspaceId')))
-	// console.log("location!!",window.location)
-	// console.log(window.location)
+	
 	reader = new Reader({
 		type,
 		localizedStrings: strings,
@@ -126,6 +123,7 @@ async function createReader(paperId, paperItems) {
 		onAddToNote() {
 			alert('Add annotations to the current note');
 		},
+		// 추가: save시 put api 호출
 		onSaveAnnotations: function (annotations) {
 			const payload = {...annotations[0]}
 			delete payload.tags
@@ -151,6 +149,7 @@ async function createReader(paperId, paperItems) {
 			})
 			console.log('Save annotations', annotations);
 		},
+		// 추가: 삭제 시 delete api 호출
 		onDeleteAnnotations: function (ids) {
 			const paperId = sessionStorage.getItem('paperId')
 			const workspaceId = sessionStorage.getItem('workspaceId')
@@ -158,6 +157,7 @@ async function createReader(paperId, paperItems) {
 			deleteApi(api, `/api/paper/item?paperId=${paperId}&workspaceId=${workspaceId}&itemId=${ids}`)
 			console.log('Delete annotations', JSON.stringify(ids));
 		},
+		// 추가: view가 업데이트 될 때마다 pageIndex 보내주기
 		onChangeViewState: function (state, primary) {
 			if (state){
 				window.parent.postMessage({pageIndex: state.pageIndex}, '*')