using iTextSharp.text;using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Text;using System.Threading.Tasks;using iTextSharp.text.pdf;namespace ConsoleApplication1{    class Program    {        static void Main(string[] args)        {           // File.Create("d:\\a.pdf");            Document document = new Document();            BaseFont bf = BaseFont.CreateFont(@"C:\Windows\Fonts\MSYH.TTC,0", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);            iTextSharp.text.Font f = new Font(bf,9);            PdfWriter.GetInstance(document, new FileStream("d:\\a.pdf", FileMode.Create));            document.Open();            iTextSharp.text.Paragraph paragraph = new iTextSharp.text.Paragraph("Hello World你好sss",f);            document.Add(paragraph);            document.Close();         }    }}