月份：2022年1月

C# 合并多个PDF

/// <summary>
    /// 合并PDF文件
    /// </summary>
    /// <param name="inFiles">待合并文件列表</param>
    /// <param name="outFile">合并生成的文件名称</param>
    static void iTextSharpPdfMerge(List<String> inFiles, String outFile)
    {
      using (var stream = new FileStream(outFile, FileMode.Create))
      {
        using (var doc = new Document())
        {
          using (var pdf = new PdfCopy(doc, stream))
          {
            doc.Open();
            inFiles.ForEach(file =>
            {
              var reader = new PdfReader(file);
              for (int i = 0; i < reader.NumberOfPages; i++)
              {
                var page = pdf.GetImportedPage(reader, i + 1);
                pdf.AddPage(page);
              }
              pdf.FreeReader(reader);
              reader.Close();
            });
          }
        }
      }
    }

本文出自：https://blog.csdn.net/u011108093/article/details/81916139