diff --git a/lib/generated_plugin_registrant.dart b/lib/generated_plugin_registrant.dart
index a8fa733e..222a4e7a 100644
--- a/lib/generated_plugin_registrant.dart
+++ b/lib/generated_plugin_registrant.dart
@@ -9,7 +9,6 @@ import 'package:firebase_core_web/firebase_core_web.dart';
 import 'package:image_picker_for_web/image_picker_for_web.dart';
 import 'package:package_info_plus_web/package_info_plus_web.dart';
 import 'package:shared_preferences_web/shared_preferences_web.dart';
-import 'package:syncfusion_flutter_pdfviewer_web/pdfviewer_web.dart';
 import 'package:url_launcher_web/url_launcher_web.dart';
 
 import 'package:flutter_web_plugins/flutter_web_plugins.dart';
@@ -21,7 +20,6 @@ void registerPlugins(Registrar registrar) {
   ImagePickerPlugin.registerWith(registrar);
   PackageInfoPlugin.registerWith(registrar);
   SharedPreferencesPlugin.registerWith(registrar);
-  SyncfusionFlutterPdfViewerPlugin.registerWith(registrar);
   UrlLauncherPlugin.registerWith(registrar);
   registrar.registerMessageHandler();
 }
diff --git a/lib/ui/profile/house/contract_preview_page.dart b/lib/ui/profile/house/contract_preview_page.dart
index 62772cd6..af2b6b3b 100644
--- a/lib/ui/profile/house/contract_preview_page.dart
+++ b/lib/ui/profile/house/contract_preview_page.dart
@@ -1,6 +1,6 @@
-import 'dart:io';
 import 'dart:typed_data';
 
+import 'package:advance_pdf_viewer/advance_pdf_viewer.dart';
 import 'package:aku_community/base/base_style.dart';
 import 'package:aku_community/constants/api.dart';
 import 'package:aku_community/ui/profile/house/download_contract_page.dart';
@@ -14,7 +14,6 @@ import 'package:flutter/material.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 import 'package:get/get.dart';
 import 'package:power_logger/power_logger.dart';
-import 'package:syncfusion_flutter_pdfviewer/pdfviewer.dart';
 import 'package:velocity_x/velocity_x.dart';
 
 class ContractPreviewPage extends StatefulWidget {
@@ -29,16 +28,34 @@ class ContractPreviewPage extends StatefulWidget {
 
 class _ContractPreviewPageState extends State<ContractPreviewPage> {
   Uint8List? _signName;
-  File? _signFile;
+  PDFDocument? doc;
+  int _currentPage = -1;
+  @override
+  void initState() {
+    Future.delayed(Duration(milliseconds: 300), () async {
+      Function cancel = BotToast.showLoading();
+      doc = await PDFDocument.fromURL(API.image(widget.url));
+      cancel();
+      _currentPage = 0;
+      setState(() {});
+    });
+    super.initState();
+  }
+
+  @override
+  void dispose() {
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     var signName = GestureDetector(
       child: DottedBorder(
         child: Container(
           alignment: Alignment.center,
-          width: 300.w,
-          height: 200.w,
-          color: Colors.white,
+          width: 200.w,
+          height: 100.w,
+          color: Colors.white.withOpacity(0.7),
           child: _signName != null
               ? Image.memory(
                   _signName!,
@@ -49,38 +66,49 @@ class _ContractPreviewPageState extends State<ContractPreviewPage> {
       ),
       onTap: () async {
         _signName = await SignNameBoard.defalutBoard();
-        if (_signName != null) {
-          _signFile = File.fromRawPath(_signName!);
-        }
         setState(() {});
       },
     );
     return BeeScaffold(
       title: '合同预览',
-      body: ListView(
+      body: Stack(
         children: [
-          SfPdfViewer.network(API.image(widget.url)),
+          Center(
+            child: doc == null
+                ? SizedBox()
+                : PDFViewer(
+                    showPicker: false,
+                    onPageChanged: (value) {
+                      _currentPage = value;
+                      setState(() {});
+                    },
+                    document: doc!),
+          ),
+          Positioned(
+              right: 70.w,
+              bottom: 200.w,
+              child: _currentPage != 0 ? SizedBox() : signName),
         ],
       ),
       bottomNavi: BottomButton(
           onPressed: () async {
-            if (_signFile != null) {
-              Function cancel = BotToast.showLoading();
+            Function cancel = BotToast.showLoading();
+            if (_signName != null) {
               try {
-                String result = await HouseFunc().uploadSignName(_signFile!);
+                String result = await HouseFunc().uploadSignName(_signName!);
                 String path = await HouseFunc()
                     .generateContract(widget.id, widget.url, result);
-                Get.off(() => DownLoadContractPage(
-                      path: path,
-                      id: widget.id,
-                    ));
+                if (path.isNotEmpty)
+                  Get.off(
+                      () => DownLoadContractPage(path: path, id: widget.id));
               } catch (e) {
                 LoggerData.addData(e);
+                print(e);
               }
-              cancel();
             } else {
               BotToast.showText(text: '请先签名！');
             }
+            cancel();
           },
           child: '生成合同'.text.size(32.sp).color(ktextPrimary).make()),
     );
diff --git a/lib/ui/profile/house/house_func.dart b/lib/ui/profile/house/house_func.dart
index 6a9ed507..2cf77c4a 100644
--- a/lib/ui/profile/house/house_func.dart
+++ b/lib/ui/profile/house/house_func.dart
@@ -1,4 +1,5 @@
 import 'dart:io';
+import 'dart:typed_data';
 
 import 'package:aku_community/constants/api.dart';
 import 'package:aku_community/model/user/house_model.dart';
@@ -116,23 +117,27 @@ class HouseFunc {
   }
 
   ///上传合同签名
-  Future<String> uploadSignName(File file) async {
-    BaseFileModel baseFileModel =
-        await NetUtil().upload(API.upload.uploadSignName, file);
+  Future<String> uploadSignName(Uint8List bytes) async {
+    BaseFileModel baseFileModel = await NetUtil().uploadUnit8List(
+      API.upload.uploadSignName,
+      bytes,
+    );
     if (baseFileModel.status ?? false) {
+      BotToast.showText(text: baseFileModel.message!);
       return baseFileModel.url!;
     } else {
+      BotToast.showText(text: baseFileModel.message!);
       return '';
     }
   }
 
   ///生成正式合同（未盖章
-  Future<String> generateContract(int id, String pUrl, String url) async {
+  Future<String> generateContract(int id, String pUrl, String sUrl) async {
     BaseModel baseModel =
         await NetUtil().post(API.house.generateContract, params: {
       "id": id,
-      "ContractPreviewImgUrl": pUrl,
-      "contractSignatureImgUrl": url,
+      "contractPreviewImgUrl": pUrl,
+      "contractSignatureImgUrl": sUrl,
     });
 
     if (baseModel.status ?? false) {
diff --git a/lib/utils/network/net_util.dart b/lib/utils/network/net_util.dart
index 86832d5b..b34ef307 100644
--- a/lib/utils/network/net_util.dart
+++ b/lib/utils/network/net_util.dart
@@ -1,4 +1,5 @@
 import 'dart:io';
+import 'dart:typed_data';
 
 import 'package:bot_toast/bot_toast.dart';
 import 'package:dio/dio.dart';
@@ -123,6 +124,20 @@ class NetUtil {
     return BaseFileModel.err();
   }
 
+  Future<BaseFileModel> uploadUnit8List(String path, Uint8List bytes) async {
+    try {
+      Response res = await _dio!.post(path,
+          data: FormData.fromMap({
+            'file': await MultipartFile.fromBytes(bytes,filename: 'signName.png'),
+          }));
+      BaseFileModel baseListModel = BaseFileModel.fromJson(res.data);
+      return baseListModel;
+    } on DioError catch (e) {
+      print(e);
+    }
+    return BaseFileModel.err();
+  }
+
   Future<List<String?>> uploadFiles(List<File> files, String api) async {
     List<String?> urls = [];
     if (files.isEmpty) {
@@ -167,7 +182,7 @@ class NetUtil {
     final userProvider = Provider.of<UserProvider>(Get.context!, listen: false);
     if (!model.status! && model.message == '登录失效，请登录' && userProvider.isLogin) {
       userProvider.logout();
-      Get.offAll(()=>SignInPage());
+      Get.offAll(() => SignInPage());
     }
     if (!model.status! || showMessage) {
       BotToast.showText(text: model.message!);
diff --git a/macos/Flutter/GeneratedPluginRegistrant.swift b/macos/Flutter/GeneratedPluginRegistrant.swift
index 0634634c..b71bc3b1 100644
--- a/macos/Flutter/GeneratedPluginRegistrant.swift
+++ b/macos/Flutter/GeneratedPluginRegistrant.swift
@@ -12,6 +12,7 @@ import package_info
 import package_info_plus_macos
 import path_provider_macos
 import shared_preferences_macos
+import sqflite
 import url_launcher_macos
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
@@ -22,5 +23,6 @@ func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   FLTPackageInfoPlusPlugin.register(with: registry.registrar(forPlugin: "FLTPackageInfoPlusPlugin"))
   PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
   SharedPreferencesPlugin.register(with: registry.registrar(forPlugin: "SharedPreferencesPlugin"))
+  SqflitePlugin.register(with: registry.registrar(forPlugin: "SqflitePlugin"))
   UrlLauncherPlugin.register(with: registry.registrar(forPlugin: "UrlLauncherPlugin"))
 }
diff --git a/pubspec.lock b/pubspec.lock
index ffc67ea6..38116db3 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -8,6 +8,13 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "21.0.0"
+  advance_pdf_viewer:
+    dependency: "direct main"
+    description:
+      name: advance_pdf_viewer
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.0.0"
   amap_flutter_base:
     dependency: "direct main"
     description:
@@ -398,6 +405,13 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_cache_manager:
+    dependency: transitive
+    description:
+      name: flutter_cache_manager
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "3.1.2"
   flutter_easyrefresh:
     dependency: "direct main"
     description:
@@ -590,6 +604,13 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "4.5.1"
+  infinite_listview:
+    dependency: transitive
+    description:
+      name: infinite_listview
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.1.0"
   intl:
     dependency: "direct main"
     description:
@@ -676,6 +697,13 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.0.0"
+  numberpicker:
+    dependency: transitive
+    description:
+      name: numberpicker
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.1.1"
   open_file:
     dependency: "direct main"
     description:
@@ -916,6 +944,13 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.1.0+1"
+  rxdart:
+    dependency: transitive
+    description:
+      name: rxdart
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.27.1"
   share:
     dependency: "direct main"
     description:
@@ -1019,6 +1054,20 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.0.3"
+  sqflite:
+    dependency: transitive
+    description:
+      name: sqflite
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.0.0+3"
+  sqflite_common:
+    dependency: transitive
+    description:
+      name: sqflite_common
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.0.0+2"
   stack_trace:
     dependency: transitive
     description:
@@ -1054,41 +1103,6 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.1.0"
-  syncfusion_flutter_core:
-    dependency: transitive
-    description:
-      name: syncfusion_flutter_core
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "19.1.69"
-  syncfusion_flutter_pdf:
-    dependency: transitive
-    description:
-      name: syncfusion_flutter_pdf
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "19.1.69-beta"
-  syncfusion_flutter_pdfviewer:
-    dependency: "direct main"
-    description:
-      name: syncfusion_flutter_pdfviewer
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "19.1.69-beta"
-  syncfusion_flutter_pdfviewer_platform_interface:
-    dependency: transitive
-    description:
-      name: syncfusion_flutter_pdfviewer_platform_interface
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "19.1.69-beta"
-  syncfusion_flutter_pdfviewer_web:
-    dependency: transitive
-    description:
-      name: syncfusion_flutter_pdfviewer_web
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "19.1.69-beta"
   synchronized:
     dependency: transitive
     description:
@@ -1187,6 +1201,13 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.0.0"
+  uuid:
+    dependency: transitive
+    description:
+      name: uuid
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "3.0.4"
   vector_math:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index 55f87de6..25daf620 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -105,8 +105,8 @@ dependencies:
   #model 插件
   equatable: ^2.0.0
   #pdf文件预览
-  syncfusion_flutter_pdfviewer: ^19.1.69-beta
-
+  # flutter_cached_pdfview: ^0.4.0-nullsafety
+  advance_pdf_viewer: ^2.0.0
 
 dev_dependencies:
   flutter_test: