public void removeXfa() {
		PdfDictionary root = reader.getCatalog();
		PdfDictionary acroform = root.getAsDict(PdfName.ACROFORM);
		acroform.remove(PdfName.XFA);
		try {
			xfa = new XfaForm(reader);
		}
		catch(Exception e) {
            throw new ExceptionConverter(e);
		}
    }