iTextSharp.text.pdf.PdfWriter.PdfTrailer.ToPdf C# (CSharp) Метод

            public override void ToPdf(PdfWriter writer, Stream os)
            {
                byte[] tmp = GetISOBytes("trailer\n");
                os.Write(tmp, 0, tmp.Length);
                base.ToPdf(null, os);
                tmp = GetISOBytes("startxref\n");
                os.Write(new byte[] { (byte)'\n' }, 0, 1);
                WriteKeyInfo(os);
                os.Write(tmp, 0, tmp.Length);
                tmp = GetISOBytes(offset.ToString());
                os.Write(tmp, 0, tmp.Length);
                tmp = GetISOBytes("\n%%EOF\n");
                os.Write(tmp, 0, tmp.Length);
            }