diff --git a/packages/client/src/tiptap/core/wrappers/excalidraw/index.module.scss b/packages/client/src/tiptap/core/wrappers/excalidraw/index.module.scss
index f9bdb17..e7293ea 100644
--- a/packages/client/src/tiptap/core/wrappers/excalidraw/index.module.scss
+++ b/packages/client/src/tiptap/core/wrappers/excalidraw/index.module.scss
@@ -30,4 +30,16 @@
       align-items: center;
     }
   }
+
+  .handlerWrap {
+    position: absolute;
+    right: 10px;
+    bottom: 10px;
+    z-index: 2;
+    padding: 2px 4px;
+    background-color: var(--semi-color-bg-2);
+    border: 1px solid var(--node-border-color);
+    border-radius: var(--border-radius);
+    box-shadow: var(--box-shadow);
+  }
 }
diff --git a/packages/client/src/tiptap/core/wrappers/excalidraw/index.tsx b/packages/client/src/tiptap/core/wrappers/excalidraw/index.tsx
index 83bffeb..c8c66d1 100644
--- a/packages/client/src/tiptap/core/wrappers/excalidraw/index.tsx
+++ b/packages/client/src/tiptap/core/wrappers/excalidraw/index.tsx
@@ -2,15 +2,17 @@ import React from 'react';
 import { useCallback, useEffect, useRef, useState } from 'react';
 import VisibilitySensor from 'react-visibility-sensor';
 
-import { Space, Spin, Typography } from '@douyinfe/semi-ui';
+import { Button, Space, Spin, Typography } from '@douyinfe/semi-ui';
 
 import { NodeViewWrapper } from '@tiptap/react';
 import { Excalidraw } from 'tiptap/core/extensions/excalidraw';
-import { getEditorContainerDOMSize } from 'tiptap/prose-utils';
+import { MAX_ZOOM, MIN_ZOOM, ZOOM_STEP } from 'tiptap/core/menus/mind/constant';
+import { clamp, getEditorContainerDOMSize } from 'tiptap/prose-utils';
 
 import cls from 'classnames';
-import { IconMind } from 'components/icons';
+import { IconMind, IconZoomIn, IconZoomOut } from 'components/icons';
 import { Resizeable } from 'components/resizeable';
+import { Tooltip } from 'components/tooltip';
 import deepEqual from 'deep-equal';
 import { useToggle } from 'hooks/use-toggle';
 
@@ -30,6 +32,7 @@ export const _ExcalidrawWrapper = ({ editor, node, updateAttributes }) => {
   const [loading, toggleLoading] = useToggle(true);
   const [error, setError] = useState<Error | null>(null);
   const [visible, toggleVisible] = useToggle(false);
+  const [zoom, setZoomState] = useState(100);
 
   const onResize = useCallback(
     (size) => {
@@ -47,6 +50,14 @@ export const _ExcalidrawWrapper = ({ editor, node, updateAttributes }) => {
     [toggleVisible]
   );
 
+  const setZoom = useCallback((type: 'minus' | 'plus') => {
+    return () => {
+      setZoomState((currentZoom) =>
+        clamp(type === 'minus' ? currentZoom - ZOOM_STEP : currentZoom + ZOOM_STEP, MIN_ZOOM, MAX_ZOOM)
+      );
+    };
+  }, []);
+
   useEffect(() => {
     let isUnmount = false;
 
@@ -114,6 +125,8 @@ export const _ExcalidrawWrapper = ({ editor, node, updateAttributes }) => {
                   display: 'flex',
                   justifyContent: 'center',
                   alignItems: 'center',
+                  transform: `scale(${zoom / 100})`,
+                  transition: `all ease-in-out .3s`,
                 }}
                 dangerouslySetInnerHTML={{ __html: Svg?.outerHTML ?? '' }}
               />
@@ -127,6 +140,27 @@ export const _ExcalidrawWrapper = ({ editor, node, updateAttributes }) => {
                 绘图
               </Space>
             </div>
+
+            <div className={styles.handlerWrap}>
+              <Tooltip content="缩小">
+                <Button
+                  size="small"
+                  theme="borderless"
+                  type="tertiary"
+                  icon={<IconZoomOut />}
+                  onClick={setZoom('minus')}
+                />
+              </Tooltip>
+              <Tooltip content="放大">
+                <Button
+                  size="small"
+                  theme="borderless"
+                  type="tertiary"
+                  icon={<IconZoomIn />}
+                  onClick={setZoom('plus')}
+                />
+              </Tooltip>
+            </div>
           </div>
         </Resizeable>
       </VisibilitySensor>
diff --git a/packages/client/src/tiptap/core/wrappers/image/index.module.scss b/packages/client/src/tiptap/core/wrappers/image/index.module.scss
index edb7b58..5f062ec 100644
--- a/packages/client/src/tiptap/core/wrappers/image/index.module.scss
+++ b/packages/client/src/tiptap/core/wrappers/image/index.module.scss
@@ -1,9 +1,23 @@
 .wrap {
+  position: relative;
   display: flex;
+  height: 100%;
   padding: 8px 16px;
   cursor: pointer;
   border: 1px solid var(--node-border-color);
   border-radius: var(--border-radius);
   justify-content: space-between;
   align-items: center;
+
+  .handlerWrap {
+    position: absolute;
+    right: 10px;
+    bottom: 10px;
+    z-index: 2;
+    padding: 2px 4px;
+    background-color: var(--semi-color-bg-2);
+    border: 1px solid var(--node-border-color);
+    border-radius: var(--border-radius);
+    box-shadow: var(--box-shadow);
+  }
 }
diff --git a/packages/client/src/tiptap/core/wrappers/image/index.tsx b/packages/client/src/tiptap/core/wrappers/image/index.tsx
index b7cfb05..e64e4c3 100644
--- a/packages/client/src/tiptap/core/wrappers/image/index.tsx
+++ b/packages/client/src/tiptap/core/wrappers/image/index.tsx
@@ -1,17 +1,21 @@
-import { useCallback, useEffect, useRef } from 'react';
+import { useCallback, useEffect, useRef, useState } from 'react';
 import { LazyLoadImage } from 'react-lazy-load-image-component';
 
-import { Spin, Typography } from '@douyinfe/semi-ui';
+import { Button, Spin, Typography } from '@douyinfe/semi-ui';
 
 import { NodeViewWrapper } from '@tiptap/react';
+import { MAX_ZOOM, MIN_ZOOM, ZOOM_STEP } from 'tiptap/core/menus/mind/constant';
 import {
+  clamp,
   extractFileExtension,
   extractFilename,
   getEditorContainerDOMSize,
   getImageWidthHeight,
 } from 'tiptap/prose-utils';
 
+import { IconZoomIn, IconZoomOut } from 'components/icons';
 import { Resizeable } from 'components/resizeable';
+import { Tooltip } from 'components/tooltip';
 import { useToggle } from 'hooks/use-toggle';
 import { uploadFile } from 'services/file';
 
@@ -25,6 +29,7 @@ export const ImageWrapper = ({ editor, node, updateAttributes }) => {
   const { width: maxWidth } = getEditorContainerDOMSize(editor);
   const $upload = useRef<HTMLInputElement>();
   const [loading, toggleLoading] = useToggle(false);
+  const [zoom, setZoomState] = useState(100);
 
   const onResize = useCallback(
     (size) => {
@@ -64,6 +69,14 @@ export const ImageWrapper = ({ editor, node, updateAttributes }) => {
     [updateAttributes, toggleLoading]
   );
 
+  const setZoom = useCallback((type: 'minus' | 'plus') => {
+    return () => {
+      setZoomState((currentZoom) =>
+        clamp(type === 'minus' ? currentZoom - ZOOM_STEP : currentZoom + ZOOM_STEP, MIN_ZOOM, MAX_ZOOM)
+      );
+    };
+  }, []);
+
   useEffect(() => {
     if (!src && !hasTrigger) {
       selectFile();
@@ -93,7 +106,44 @@ export const ImageWrapper = ({ editor, node, updateAttributes }) => {
             </Spin>
           </div>
         ) : (
-          <LazyLoadImage src={src} alt={alt} width={'100%'} height={'100%'} />
+          <div className={styles.wrap}>
+            <div
+              style={{
+                height: '100%',
+                maxHeight: '100%',
+                padding: 24,
+                overflow: 'hidden',
+                display: 'flex',
+                justifyContent: 'center',
+                alignItems: 'center',
+                transform: `scale(${zoom / 100})`,
+                transition: `all ease-in-out .3s`,
+              }}
+            >
+              <LazyLoadImage src={src} alt={alt} width={'100%'} height={'100%'} />
+            </div>
+
+            <div className={styles.handlerWrap}>
+              <Tooltip content="缩小">
+                <Button
+                  size="small"
+                  theme="borderless"
+                  type="tertiary"
+                  icon={<IconZoomOut />}
+                  onClick={setZoom('minus')}
+                />
+              </Tooltip>
+              <Tooltip content="放大">
+                <Button
+                  size="small"
+                  theme="borderless"
+                  type="tertiary"
+                  icon={<IconZoomIn />}
+                  onClick={setZoom('plus')}
+                />
+              </Tooltip>
+            </div>
+          </div>
         )}
       </Resizeable>
     </NodeViewWrapper>
diff --git a/packages/server/src/dtos/update-wiki.dto.ts b/packages/server/src/dtos/update-wiki.dto.ts
index 3603b3f..52f59eb 100644
--- a/packages/server/src/dtos/update-wiki.dto.ts
+++ b/packages/server/src/dtos/update-wiki.dto.ts
@@ -10,7 +10,7 @@ export class UpdateWikiDto {
 
   @IsString({ message: '知识库描述类型错误（正确类型为：String）' })
   @IsNotEmpty({ message: '知识库描述不能为空' })
-  @MinLength(3, { message: '知识库描述至少3个字符' })
+  @MinLength(1, { message: '知识库描述至少1个字符' })
   @IsOptional()
   description: string;