iTextSharp.text.pdf.PdfStructTreeController.CopyStructTreeForPage C# (CSharp) Метод

        public void CopyStructTreeForPage(PdfNumber sourceArrayNumber, int newArrayNumber)
        {
            if (!openedDocuments[fileName])
            {
            PdfObject res = writer.CopyObject(writer.CopyObject(structTreeRoot.Get(PdfName.K), true, true));
            if (!(res is PdfIndirectReference))
                res = writer.AddToBody(res).IndirectReference;
            structureTreeRoot.AddPageMark(newArrayNumber, (PdfIndirectReference)res);
            AddKid(structureTreeRoot, res);
            openedDocuments.Add(fileName, true);
            }
            if (CopyPageMarks(parentTree, sourceArrayNumber, newArrayNumber) == returnType.NOTFOUND) {
            throw new BadPdfFormatException(MessageLocalization.GetComposedMessage("structparent.not.found"));
            }
        }