diff --git a/web/src/hooks/useBreadcrumbManager.ts b/web/src/hooks/useBreadcrumbManager.ts
index bd18f4f8..a0fafc85 100644
--- a/web/src/hooks/useBreadcrumbManager.ts
+++ b/web/src/hooks/useBreadcrumbManager.ts
@@ -30,16 +30,74 @@ export const useBreadcrumbManager = (options?: BreadcrumbOptions) => {
   const updateBreadcrumbs = useCallback((breadcrumbPath: BreadcrumbPath) => {
     const breadcrumbType = options?.breadcrumbType || 'list';
     
-    // 获取基础面包屑，对于详情页面，使用列表页面的基础面包屑作为起点
-    const baseBreadcrumbs = breadcrumbType === 'list' 
-      ? (allBreadcrumbs['space'] || [])
-      : (allBreadcrumbs['space'] || []); // 详情页面也从 space 获取基础面包屑
+    // 对于详情页面，直接使用固定的知识库管理面包屑，不依赖可能被污染的 allBreadcrumbs
+    let baseBreadcrumbs: MenuItem[] = [];
     
-    // 只保留知识库菜单项之前的面包屑
-    const knowledgeBaseMenuIndex = baseBreadcrumbs.findIndex(item => item.path === '/knowledge-base');
-    const filteredBaseBreadcrumbs = knowledgeBaseMenuIndex >= 0 
-      ? baseBreadcrumbs.slice(0, knowledgeBaseMenuIndex + 1)
-      : baseBreadcrumbs;
+    if (breadcrumbType === 'detail') {
+      // 详情页面：始终使用固定的知识库管理面包屑
+      baseBreadcrumbs = [
+        {
+          id: 6,
+          parent: 0,
+          code: 'knowledge',
+          label: '知识库',
+          i18nKey: 'menu.knowledgeManagement',
+          path: '/knowledge-base',
+          enable: true,
+          display: true,
+          level: 1,
+          sort: 0,
+          icon: null,
+          iconActive: null,
+          menuDesc: null,
+          deleted: null,
+          updateTime: 0,
+          new_: null,
+          keepAlive: false,
+          master: null,
+          disposable: false,
+          appSystem: null,
+          subs: [],
+        }
+      ];
+    } else {
+      // 列表页面：从 space 获取基础面包屑，但确保包含知识库管理
+      const spaceBreadcrumbs = allBreadcrumbs['space'] || [];
+      const knowledgeBaseMenuIndex = spaceBreadcrumbs.findIndex(item => item.path === '/knowledge-base');
+      
+      if (knowledgeBaseMenuIndex >= 0) {
+        baseBreadcrumbs = spaceBreadcrumbs.slice(0, knowledgeBaseMenuIndex + 1);
+      } else {
+        // 如果没有找到知识库菜单，使用默认的知识库管理面包屑
+        baseBreadcrumbs = [
+          {
+            id: 6,
+            parent: 0,
+            code: 'knowledge',
+            label: '知识库',
+            i18nKey: 'menu.knowledgeManagement',
+            path: '/knowledge-base',
+            enable: true,
+            display: true,
+            level: 1,
+            sort: 0,
+            icon: null,
+            iconActive: null,
+            menuDesc: null,
+            deleted: null,
+            updateTime: 0,
+            new_: null,
+            keepAlive: false,
+            master: null,
+            disposable: false,
+            appSystem: null,
+            subs: [],
+          }
+        ];
+      }
+    }
+    
+    const filteredBaseBreadcrumbs = baseBreadcrumbs;
 
     // 给"知识库管理"添加点击事件
     const breadcrumbsWithClick = filteredBaseBreadcrumbs.map((item) => {
diff --git a/web/src/i18n/en.ts b/web/src/i18n/en.ts
index ba409dde..e05be03f 100644
--- a/web/src/i18n/en.ts
+++ b/web/src/i18n/en.ts
@@ -613,6 +613,8 @@ export const en = {
       answer: 'Answer',
       normalMode: 'Normal Mode',
       qaMode: 'QA Mode',
+      fileParsingSettings: 'File Parsing Settings',
+      pdfEnhancementAnalysis: 'PDF Enhancement Analysis',
       createForm:{
         name: 'Name',
         embedding_id: 'Embedding',
diff --git a/web/src/i18n/zh.ts b/web/src/i18n/zh.ts
index d97be1d6..c1b6b448 100644
--- a/web/src/i18n/zh.ts
+++ b/web/src/i18n/zh.ts
@@ -237,6 +237,8 @@ export const zh = {
       answer: '答案',
       normalMode: '常规模式',
       qaMode: '问答模式',
+      fileParsingSettings: '文件解析设置',
+      pdfEnhancementAnalysis: 'PDF增强解析',
       createForm: {
         name: '名称',
         embedding_id: '嵌入模型',
diff --git a/web/src/views/KnowledgeBase/[knowledgeBaseId]/CreateDataset.tsx b/web/src/views/KnowledgeBase/[knowledgeBaseId]/CreateDataset.tsx
index c1e42fc8..150d32b8 100644
--- a/web/src/views/KnowledgeBase/[knowledgeBaseId]/CreateDataset.tsx
+++ b/web/src/views/KnowledgeBase/[knowledgeBaseId]/CreateDataset.tsx
@@ -1,5 +1,5 @@
 import {  useMemo,useRef, useState, useEffect } from 'react';
-import { Button, Flex, Radio, Steps, Modal, Input, Spin,message} from 'antd';
+import { Button, Flex, Radio, Steps, Modal, Input, Spin, message, Checkbox} from 'antd';
 import { useTranslation } from 'react-i18next';
 import { useLocation, useNavigate, useParams } from 'react-router-dom';
 import Table, { type TableRef } from '@/components/Table'
@@ -81,6 +81,7 @@ const CreateDataset = () => {
   const [blockSize, setBlockSize] = useState<number>(130);
   const [processingMethod, setProcessingMethod] = useState<ProcessingMethod>('directBlock');
   const [parameterSettings, setParameterSettings] = useState<ParameterSettings>('defaultSettings');
+  const [pdfEnhancementEnabled, setPdfEnhancementEnabled] = useState<boolean>(false);
   const [messageApi, contextHolder] = message.useMessage();
   const fileType = ['pdf', 'doc', 'docx', 'xls', 'xlsx', 'csv', 'md', 'htm', 'html', 'json', 'ppt', 'pptx', 'txt','png','jpg']
   const steps = useMemo(
@@ -469,6 +470,26 @@ const CreateDataset = () => {
               </div>
             )}
             <div className='rb:text-base rb:font-medium rb:text-gray-800'>
+                {t('knowledgeBase.fileParsingSettings')}
+            </div>
+            <div className='rb:mt-4'>
+              <div 
+                className={`rb:flex rb:items-center rb:w-full rb:border rb:rounded-lg rb:p-4 rb:cursor-pointer ${
+                  pdfEnhancementEnabled ? 'rb:border-blue-500' : 'rb:border-gray-300'
+                }`}
+                onClick={() => setPdfEnhancementEnabled(!pdfEnhancementEnabled)}
+              >
+                <Checkbox 
+                  checked={pdfEnhancementEnabled}
+                  onChange={(e) => setPdfEnhancementEnabled(e.target.checked)}
+                  className='rb:mr-3'
+                />
+                <span className='rb:text-base rb:font-medium rb:text-gray-800 rb:pl-[22px]'>
+                  {t('knowledgeBase.pdfEnhancementAnalysis')}
+                </span>
+              </div>
+            </div>
+            <div className='rb:text-base rb:font-medium rb:text-gray-800 rb:mt-6'>
                 {t('knowledgeBase.dataProcessingSettings')}
             </div>
             <div className='rb:font-medium rb:text-gray-500 rb:mt-4 rb:mb-3'>
diff --git a/web/src/views/KnowledgeBase/[knowledgeBaseId]/Private.tsx b/web/src/views/KnowledgeBase/[knowledgeBaseId]/Private.tsx
index ed909515..48fc6fba 100644
--- a/web/src/views/KnowledgeBase/[knowledgeBaseId]/Private.tsx
+++ b/web/src/views/KnowledgeBase/[knowledgeBaseId]/Private.tsx
@@ -118,6 +118,17 @@ const Private: FC = () => {
       let url = `/documents/${knowledgeBaseId}/documents`;
       setTableApi(url);
       fetchKnowledgeBaseDetail(knowledgeBaseId);
+      
+      // 立即设置基础面包屑，确保不会显示其他页面的面包屑
+      updateBreadcrumbs({
+        knowledgeBaseFolderPath,
+        knowledgeBase: {
+          id: knowledgeBaseId,
+          name: '加载中...',
+          type: 'knowledgeBase'
+        },
+        documentFolderPath: folderPath,
+      });
     }
   }, [knowledgeBaseId]);