如何使用itextsharp将内容拆分为两列(需要在列之间留出一些空间)

Document document = new Document(PageSize.A4);

PdfWriter writer = PdfWriter.GetInstance(document, new FileStream("output.pdf", FileMode.Create));

ColumnText columnText = new ColumnText(writer.DirectContent);
columnText.SetSimpleColumn(36, 36, 250, 806); // 设置两列的位置和大小
columnText.AddElement(new Paragraph("这是第一列的内容"));
columnText.AddElement(new Paragraph("这是第二列的内容"));
columnText.Go();

using iTextSharp.text;
using iTextSharp.text.pdf;
using System.IO;

class Program
{
    static void Main(string[] args)
    {
        Document document = new Document(PageSize.A4);
        PdfWriter writer = PdfWriter.GetInstance(document, new FileStream("output.pdf", FileMode.Create));

        document.Open();

        ColumnText columnText = new ColumnText(writer.DirectContent);
        columnText.SetSimpleColumn(36, 36, 250, 806);
        columnText.AddElement(new Paragraph("这是第一列的内容"));
        columnText.AddElement(new Paragraph("这是第二列的内容"));
        columnText.Go();

        document.Close();
    }
}