// This code demonstrates how to re-order pages in a PDF document
            Accusoft.PdfXpressSdk.PdfXpress pdfXpress1 = null;
            Accusoft.PdfXpressSdk.Document document = null;
            try
            {
                pdfXpress1 = new PdfXpress();
                pdfXpress1.Initialize();
                document = new Document(pdfXpress1, "C:\\pdfsample.pdf");
                document.MovePage(3, 0);
            }
            catch (System.Exception)
            {
            }
            finally
            {
                if (null != document)
                {
                    document.Dispose();
                }
                if (null != pdfXpress1)
                {
                    pdfXpress1.Dispose();
                }
            }