如何使用 ITextSharp 在 C# 中合併多個以程式設計方式產生的 PDF 檔案？

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

namespace MergePdfs
{
    class Program
    {
        static void Main(string[] args)
        {
            // Create a list of byte arrays for each PDF file
            List<byte[]> pdfs = new List<byte[]>();

            // Read each PDF file into the list
            foreach (string filePath in args)
            {
                pdfs.Add(File.ReadAllBytes(filePath));
            }

            // Merge the PDFs
            byte[] mergedPdf = null;
            using (MemoryStream ms = new MemoryStream())
            {
                using (Document document = new Document())
                {
                    using (PdfCopy copy = new PdfCopy(document, ms))
                    {
                        document.Open();

                        foreach (byte[] pdf in pdfs)
                        {
                            PdfReader reader = new PdfReader(pdf);
                            int n = reader.NumberOfPages;
                            for (int page = 1; page <= n; page++)
                            {
                                copy.AddPage(copy.GetImportedPage(reader, page));
                            }
                        }
                    }
                }

                mergedPdf = ms.ToArray();
            }

            // Print the merged PDF
            // ... (code for printing the merged PDF)
        }
    }
}