document.addTitle("Hello World example");
document.addAuthor("Bruno Lowagie");
document.addSubject("This example explains step 3 in Chapter 1");
document.addKeywords("Metadata, iText, step 3, tutorial");
// custom (HTML) meta information
document.addHeader("Expires", "0");
// meta information that will be in a comment section in HTML
document.addCreator("My program using iText");
document.open();
// step 4: we add a paragraph to the document
document.add(new Paragraph("Hello World"));