iTextSharp.text.pdf.PdfWriter.SetTagged C# (CSharp) Méthode

        public void SetTagged()
        {
            if (open)
                throw new ArgumentException(MessageLocalization.GetComposedMessage("tagging.must.be.set.before.opening.the.document"));
            tagged = true;
        }

        // ---------------------------------------------------------------------------
        public byte[] CreatePdf()
        {
            using (MemoryStream ms = new MemoryStream()) {
            using (document = new Document(PageSize.A5)) {
              // step 2
              writer = PdfWriter.GetInstance(document, ms);
              writer.SetTagged();
              // step 3
              document.Open();
              // step 4
              PdfStructureTreeRoot root = writer.StructureTreeRoot;
              root.MapRole(new PdfName("chapter"), PdfName.SECT);
              root.MapRole(new PdfName("title"), PdfName.H);
              root.MapRole(new PdfName("para"), PdfName.P);
              top = new PdfStructureElement(
            root, new PdfName("chapter")
              );

              canvas = writer.DirectContent;
              column = new ColumnText(canvas);
              column.SetSimpleColumn(36, 36, 384, 569);
              font = new Font(
            BaseFont.CreateFont(
              "c:/windows/fonts/arial.ttf", BaseFont.WINANSI, BaseFont.EMBEDDED
            ), 12
              );

              using (XmlReader xr = XmlReader.Create(RESOURCE)) {
            xr.MoveToContent();
            while (xr.Read()) {
              switch (xr.NodeType) {
                case XmlNodeType.Element:
                  StartElement(xr.Name);
                  break;
                case XmlNodeType.Text:
                  buf.Append(Regex.Replace(xr.Value.Trim(), "\n", " "));
                  break;
                case XmlNodeType.EndElement:
                  EndElement(xr.Name);
                  break;
              }
            }
              }
            }
            return ms.ToArray();
              }
        }