iTextSharp.text.pdf.PdfStamper(pdfReaderF, new FileStream(outputfile, FileMode.Create));
iTextSharp.xtra.iTextSharp.text.pdf.pdfcleanup.PdfCleanUpProcessorcleaner = new iTextSharp.xtra.iTextSharp.text.pdf.pdfcleanup.PdfCleanUpProcessor(listCleanUp, stamperF