writer.fos = new FileOutputStream(writer.outputFile);
writer.pdfCopy = new PdfCopy(writer.document, writer.fos);
writer.pdfCopy.setPdfVersion(PdfWriter.PDF_VERSION_1_7);
writer.fos = new FileOutputStream(writer.outputFile);
writer.pdfCopy = new PdfCopy(writer.document, writer.fos);
writer.pdfCopy.setPdfVersion(PdfWriter.PDF_VERSION_1_7);