C# 使用Word模板替换标签生成Word和PDF

#region 标签替换，生成pdf文档
        /// <summary>
        /// 根据word模板文件导出word/pdf文件
        /// </summary>
        /// <param name="templateFile">模板路径</param>
        /// <param name="fileNameWord">复制word文件名称全路径</param>
        /// <param name="fileNamePdf">pdf文件名称全路径</param>
        /// <param name="bookmarks">模板内书签集合</param>
        public static bool GeneratePdf(string templateFile, string fileNameWord, string fileNamePdf, Dictionary<string, string> bookmarks)
        {
            Microsoft.Office.Interop.Word.Application app = new Microsoft.Office.Interop.Word.Application();
            File.Copy(templateFile, fileNameWord, true);  // 复制一下模板
            Microsoft.Office.Interop.Word.Document doc = new Microsoft.Office.Interop.Word.Document();
            object Obj_FileName = fileNameWord;
            object Visible = false;
            object ReadOnly = false;
            object missing = System.Reflection.Missing.Value;
            object IsSave = true;
            object FileName = fileNamePdf;
            object FileFormat = Microsoft.Office.Interop.Word.WdSaveFormat.wdFormatPDF;
            object LockComments = false;
            object AddToRecentFiles = true;
            object ReadOnlyRecommended = false;
            object EmbedTrueTypeFonts = false;
            object SaveNativePictureFormat = true;
            object SaveFormsData = false;
            object SaveAsAOCELetter = false;
            object Encoding = Microsoft.Office.Core.MsoEncoding.msoEncodingSimplifiedChineseGB18030;
            object InsertLineBreaks = false;
            object AllowSubstitutions = false;