如何在不使用Rich重写的情况下将Microsoft word文件内容嵌入flutter应用程序

flutter:
  assets:
    - assets/your_pdf_file.pdf

import 'package:flutter_plugin_pdf_viewer/flutter_plugin_pdf_viewer.dart';

class PDFViewerPage extends StatefulWidget {
  @override
  _PDFViewerPageState createState() => _PDFViewerPageState();
}

class _PDFViewerPageState extends State<PDFViewerPage> {
  PDFDocument document;
  bool isLoading = true;

  @override
  void initState() {
    super.initState();
    loadPDF();
  }

  Future<void> loadPDF() async {
    setState(() {
      isLoading = true;
    });
    try {
      document = await PDFDocument.fromAsset('assets/your_pdf_file.pdf');
    } catch (e) {
      print('Failed to load PDF: $e');
    }
    setState(() {
      isLoading = false;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('PDF Viewer'),
      ),
      body: Center(
        child: isLoading
            ? CircularProgressIndicator()
            : PDFViewer(
                document: document,
                lazyLoad: false, // 加载所有页面
                scrollDirection: Axis.vertical, // 竖向滚动
                navigationBuilder: (context, page, totalPages, jumpToPage, animateToPage) {
                  return ButtonBar(
                    children: <Widget>[
                      IconButton(
                        icon: Icon(Icons.first_page),
                        onPressed: () {
                          jumpToPage(page: 0);
                        },
                      ),
                      IconButton(
                        icon: Icon(Icons.chevron_left),
                        onPressed: () {
                          animateToPage(page: page - 1);
                        },
                      ),
                      Text('$page of $totalPages'),
                      IconButton(
                        icon: Icon(Icons.chevron_right),
                        onPressed: () {
                          animateToPage(page: page + 1);
                        },
                      ),
                      IconButton(
                        icon: Icon(Icons.last_page),
                        onPressed: () {
                          jumpToPage(page: totalPages - 1);
                        },
                      ),
                    ],
                  );
                },
              ),
      ),
    );
  }
}