XMPMetadata meta = XMPMetadata.createXMPMetadata();
DublinCoreSchema dc = meta.createAndAddDublinCoreSchema();
dc.setCoverage("coverage");
dc.addContributor("contributor1");
dc.addContributor("contributor2");
dc.addDescription("x-default", "Description");
AdobePDFSchema pdf = meta.createAndAddAdobePDFSchema();
pdf.setProducer("Producer");
pdf.setPDFVersion("1.4");