diff --git a/hwe/ts/PartialDipcenter.vue b/hwe/ts/PartialDipcenter.vue
index ae94abdd..3bfbf963 100644
--- a/hwe/ts/PartialDipcenter.vue
+++ b/hwe/ts/PartialDipcenter.vue
@@ -49,7 +49,7 @@
 import "@scss/dipcenter.scss";
 import "@scss/common_legacy.scss";
 import TipTap from "./components/TipTap.vue";
-import { defineComponent, reactive, ref } from "vue";
+import { defineComponent } from "vue";
 import { sammoAPI } from "./util/sammoAPI";
 import { isString } from "lodash";
 declare const editable: boolean;
diff --git a/hwe/ts/components/TipTap.vue b/hwe/ts/components/TipTap.vue
index 7042cb50..c02fbb17 100644
--- a/hwe/ts/components/TipTap.vue
+++ b/hwe/ts/components/TipTap.vue
@@ -1,33 +1,75 @@
 <template>
   <b-button-toolbar key-nav v-if="editable && editor" class="bg-dark">
-    <!-- 뒤로, 앞으로 -->
+    <b-button-group class="mx-1">
+      <b-button
+        @click="editor.commands.undo()"
+        v-b-tooltip.hover
+        title="되돌리기"
+        ><i class="bi bi-arrow-90deg-left"></i
+      ></b-button>
+      <b-button @click="editor.commands.redo()" v-b-tooltip.hover title="재실행"
+        ><i class="bi bi-arrow-90deg-right"></i
+      ></b-button>
+    </b-button-group>
     <b-button-group class="mx-1">
       <b-button
         @click="editor.chain().focus().toggleBold().run()"
         :class="{ 'is-active': editor.isActive('bold') }"
-        ><i class="bi bi-type-bold" v-b-tooltip.hover title="진하게"></i
+        v-b-tooltip.hover
+        title="진하게"
+        ><i class="bi bi-type-bold"></i
       ></b-button>
       <b-button
         @click="editor.chain().focus().toggleItalic().run()"
         :class="{ 'is-active': editor.isActive('italic') }"
-        ><i class="bi bi-type-italic" v-b-tooltip.hover title="기울이기"></i
+        v-b-tooltip.hover
+        title="기울이기"
+        ><i class="bi bi-type-italic"></i
       ></b-button>
-      <!-- 밑줄, 효과 지우기 -->
+      <b-button
+        @click="editor.chain().focus().toggleUnderline().run()"
+        :class="{ 'is-active': editor.isActive('underline') }"
+        v-b-tooltip.hover
+        title="밑줄"
+        ><i class="bi bi-type-underline"></i
+      ></b-button>
+      <!-- 효과 지우기 -->
     </b-button-group>
 
     <b-button-group class="mx-1">
-      <!-- 글꼴, 크기 -->
+      <b-dropdown>
+        <template #button-content> 크기 </template>
+        <b-dropdown-item @click="editor.chain().focus().unsetFontSize().run()"
+          ><span>기본</span></b-dropdown-item
+        >
+        <b-dropdown-divider />
+        <b-dropdown-item
+          v-for="sizeItem in fontSize"
+          :key="sizeItem"
+          @click="editor.chain().focus().setFontSize(sizeItem).run()"
+          ><span
+            :style="{
+              'font-size': sizeItem,
+              'text-decoration': editor.isActive('textStyle', {
+                fontSize: sizeItem,
+              })
+                ? 'underline'
+                : undefined,
+            }"
+            >{{ sizeItem }}</span
+          ></b-dropdown-item
+        >
+      </b-dropdown>
+      <!-- 글꼴 -->
     </b-button-group>
 
     <b-button-group class="mx-1">
       <b-button
         @click="editor.chain().focus().toggleStrike().run()"
         :class="{ 'is-active': editor.isActive('strike') }"
-        ><i
-          class="bi bi-type-strikethrough"
-          v-b-tooltip.hover
-          title="가로선"
-        ></i
+        v-b-tooltip.hover
+        title="가로선"
+        ><i class="bi bi-type-strikethrough"></i
       ></b-button>
       <!-- 윗첨자, 아랫첨자 -->
     </b-button-group>
@@ -45,19 +87,37 @@
       <!-- 구분선 삽입 -->
     </b-button-group>
 
-
     <b-button-group class="mx-1">
       <!-- 글머리 기호 -->
       <!-- 번호 매기기 -->
+      <b-button
+        @click="editor.chain().focus().setTextAlign('left').run()"
+        :class="{ 'is-active': editor.isActive({ textAlign: 'left' }) }"
+        v-b-tooltip.hover
+        title="왼쪽 정렬"
+        ><i class="bi bi-text-left"></i
+      ></b-button>
+      <b-button
+        @click="editor.chain().focus().setTextAlign('center').run()"
+        :class="{ 'is-active': editor.isActive({ textAlign: 'center' }) }"
+        v-b-tooltip.hover
+        title="가운데 정렬"
+        ><i class="bi bi-text-center"></i
+      ></b-button>
+      <b-button
+        @click="editor.chain().focus().setTextAlign('right').run()"
+        :class="{ 'is-active': editor.isActive({ textAlign: 'right' }) }"
+        v-b-tooltip.hover
+        title="오른쪽 정렬"
+        ><i class="bi bi-text-right"></i
+      ></b-button>
       <!-- 문단정렬(왼, 가, 오, 양)(내어, 들여) -->
     </b-button-group>
 
-
     <b-button-group class="mx-1">
       <!-- 줄간격 (1.0, 1.2, 1.4, 1.5, 1.6, 1.8, 2.0, 3.0) -->
     </b-button-group>
 
-
     <b-button-group class="mx-1">
       <!-- 원본 코드 -->
     </b-button-group>
@@ -69,8 +129,19 @@
 //import "@scss/common/bootstrap5.scss";
 import { defineComponent } from "vue";
 import { Editor, EditorContent } from "@tiptap/vue-3";
+import { FontSize } from "@/tiptap-ext/FontSize";
 import StarterKit from "@tiptap/starter-kit";
-import {BButtonGroup, BButtonToolbar, BButton} from "bootstrap-vue-3";
+import Underline from "@tiptap/extension-underline";
+import TextStyle from "@tiptap/extension-text-style";
+import TextAlign from "@tiptap/extension-text-align";
+import {
+  BButtonGroup,
+  BButtonToolbar,
+  BButton,
+  BDropdown,
+  BDropdownItem,
+  BDropdownDivider,
+} from "bootstrap-vue-3";
 
 const compoment = defineComponent({
   components: {
@@ -78,6 +149,9 @@ const compoment = defineComponent({
     BButtonGroup,
     BButtonToolbar,
     BButton,
+    BDropdown,
+    BDropdownItem,
+    BDropdownDivider,
   },
 
   props: {
@@ -93,6 +167,19 @@ const compoment = defineComponent({
   data() {
     return {
       editor: null as unknown as InstanceType<typeof Editor>,
+      fontList: ["Pretendard", "맑은 고딕", "궁서", "돋움"],
+      fontSize: [
+        "8px",
+        "10px",
+        "12px",
+        "14px",
+        "18px",
+        "22px",
+        "28px",
+        "36px",
+        "48px",
+        "72px",
+      ],
     };
   },
 
@@ -108,21 +195,30 @@ const compoment = defineComponent({
     },
     editable(value: boolean) {
       this.editor.options.editable = value;
-      if(value == true){
+      if (value == true) {
         this.editor.commands.focus();
       }
     },
   },
 
   mounted() {
-    this.editor = new Editor({
-      extensions: [StarterKit],
+    const editor = new Editor({
+      extensions: [
+        StarterKit,
+        Underline,
+        FontSize,
+        TextStyle,
+        TextAlign.configure({
+          types: ["heading", "paragraph"],
+        }),
+      ],
       editable: this.editable,
       content: this.modelValue,
       onUpdate: () => {
         this.$emit("update:modelValue", this.editor.getHTML());
       },
     });
+    this.editor = editor;
   },
 
   beforeUnmount() {
diff --git a/hwe/ts/tiptap-ext/FontSize.ts b/hwe/ts/tiptap-ext/FontSize.ts
new file mode 100644
index 00000000..d2829991
--- /dev/null
+++ b/hwe/ts/tiptap-ext/FontSize.ts
@@ -0,0 +1,70 @@
+import { Extension } from '@tiptap/core';
+import '@tiptap/extension-text-style';
+
+type FontSizeOptions = {
+    types: string[],
+}
+
+declare module '@tiptap/core' {
+    interface Commands<ReturnType> {
+        fontSize: {
+            /**
+             * Set the font size attribute
+             */
+            setFontSize: (size: string) => ReturnType,
+            /**
+             * Unset the font size attribute
+             */
+            unsetFontSize: () => ReturnType,
+        }
+    }
+}
+
+export const FontSize = Extension.create<FontSizeOptions>({
+    name: 'fontSize',
+
+    addOptions() {
+        return {
+            types: ['textStyle'],
+        }
+    },
+    addGlobalAttributes() {
+        return [
+            {
+                types: this.options.types,
+                attributes: {
+                    fontSize: {
+                        default: null,
+                        parseHTML: element => element.style.fontSize.replace(/['"]+/g, ''),
+                        renderHTML: attributes => {
+                            if (!attributes.fontSize) {
+                                return {}
+                            }
+
+                            return {
+                                style: `font-size: ${attributes.fontSize}`,
+                            }
+                        },
+                    },
+                },
+            },
+        ]
+    },
+
+    addCommands() {
+        return {
+            setFontSize: fontSize => ({ chain }) => {
+                return chain()
+                    .setMark('textStyle', { fontSize })
+                    .run()
+            },
+            unsetFontSize: () => ({ chain }) => {
+                return chain()
+                    .setMark('textStyle', { fontSize: null })
+                    .removeEmptyTextStyle()
+                    .run()
+            },
+        }
+    },
+
+});
\ No newline at end of file
diff --git a/hwe/ts/v_dipcenter.ts b/hwe/ts/v_dipcenter.ts
index 83be4042..938f91a3 100644
--- a/hwe/ts/v_dipcenter.ts
+++ b/hwe/ts/v_dipcenter.ts
@@ -1,5 +1,4 @@
 import { createApp } from 'vue'
-import 'bootstrap';
 import PartialDipcenter from '@/PartialDipcenter.vue';
 import BootstrapVue3 from 'bootstrap-vue-3';
 import { htmlReady } from './util/htmlReady';
diff --git a/package.json b/package.json
index 0ace3edf..eedc7b22 100644
--- a/package.json
+++ b/package.json
@@ -21,6 +21,9 @@
   "dependencies": {
     "@tiptap/extension-image": "^2.0.0-beta.24",
     "@tiptap/extension-link": "^2.0.0-beta.33",
+    "@tiptap/extension-text-align": "^2.0.0-beta.29",
+    "@tiptap/extension-text-style": "^2.0.0-beta.23",
+    "@tiptap/extension-underline": "^2.0.0-beta.22",
     "@tiptap/starter-kit": "^2.0.0-beta.156",
     "@tiptap/vue-3": "^2.0.0-beta.83",
     "@types/bootstrap": "^5.1.6",