How to rearrange PDF document pages in WinRT

            Stream docStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.sample.pdf");

            //Load the existing PDF document

            PdfLoadedDocument document = new PdfLoadedDocument(docStream);

            //Get the PDF page collection

            PdfLoadedPageCollection collection = document.Pages as PdfLoadedPageCollection;

            //define the page orders

            int[] array = { 4, 3, 2, 1, 0 };

            //Rearrange the pages

            collection.ReArrange(array);

            MemoryStream ms = new MemoryStream();

            //Save the PDF document

            document.Save(ms);

            //Close the PDF document

            document.Close(true);