如何使用iText API获取当前页边距

using System;
using iText.Kernel.Pdf;

class Program
{
    static void Main(string[] args)
    {
        // 创建一个PdfDocument对象
        PdfDocument pdfDoc = new PdfDocument(new PdfReader("path/to/your/pdf/file.pdf"));

        // 获取第一页的PdfPage对象
        PdfPage pdfPage = pdfDoc.GetPage(1);

        // 获取页边距
        float marginLeft = pdfPage.GetMarginLeft();
        float marginRight = pdfPage.GetMarginRight();
        float marginTop = pdfPage.GetMarginTop();
        float marginBottom = pdfPage.GetMarginBottom();

        // 输出页边距
        Console.WriteLine("Margin Left: " + marginLeft);
        Console.WriteLine("Margin Right: " + marginRight);
        Console.WriteLine("Margin Top: " + marginTop);
        Console.WriteLine("Margin Bottom: " + marginBottom);

        // 关闭PdfDocument对象
        pdfDoc.Close();
    }
}