iTextSharp.text.Document.AddDocListener C# (CSharp) Метод

        public void AddDocListener(IDocListener listener)
        {
            listeners.Add(listener);
        }

        public static List <byte[]> Split(PdfReader reader)
        {
            int p = 0;

            Document document;

            var data = new List <byte[]>();


            for (p = 1; p <= reader.NumberOfPages; p++)
            {
                using (MemoryStream memoryStream = new MemoryStream())
                {
                    document = new iTextSharp.text.Document();
                    PdfWriter writer = PdfWriter.GetInstance(document, memoryStream);
                    writer.SetPdfVersion(PdfWriter.PDF_VERSION_1_2);
                    writer.CompressionLevel = PdfStream.BEST_COMPRESSION;
                    writer.SetFullCompression();
                    document.SetPageSize(reader.GetPageSize(p));
                    document.NewPage();
                    document.Open();
                    document.AddDocListener(writer);
                    PdfContentByte  cb         = writer.DirectContent;
                    PdfImportedPage pageImport = writer.GetImportedPage(reader, p);
                    int             rot        = reader.GetPageRotation(p);
                    if (rot == 90 || rot == 270)
                    {
                        cb.AddTemplate(pageImport, 0, -1.0F, 1.0F, 0, 0, reader.GetPageSizeWithRotation(p).Height);
                    }
                    else
                    {
                        cb.AddTemplate(pageImport, 1.0F, 0, 0, 1.0F, 0, 0);
                    }
                    document.Close();
                    document.Dispose();
                    //File.WriteAllBytes(DestinationFolder + "/" + p + ".pdf", memoryStream.ToArray());

                    data.Add(memoryStream.ToArray());

                    if (OnSplitProcess != null)
                    {
                        OnSplitProcess(p, null);
                    }
                }
            }
            reader.Close();
            reader.Dispose();

            return(data);
        }