display("PDF Version:", pdf.getPDFVersion()); display("PDF Producer:", pdf.getProducer());
display("PDF Version:", pdf.getPDFVersion()); display("PDF Producer:", pdf.getProducer());
display("PDF Version:", pdf.getPDFVersion()); display("PDF Producer:", pdf.getProducer());
display("PDF Version:", pdf.getPDFVersion()); display("PDF Producer:", pdf.getProducer());