iTextSharp.text.pdf.PdfReader.PageRefs.ReadPages C# (CSharp) Method

            internal void ReadPages() {
                if (refsn != null)
                    return;
                refsp = null;
                refsn = new ArrayList();
                pageInh = new ArrayList();
                IteratePages((PRIndirectReference)reader.catalog.Get(PdfName.PAGES));
                pageInh = null;
                reader.rootPages.Put(PdfName.COUNT, new PdfNumber(refsn.Count));
            }