xp.extractContent(xmlDoc, Metadata.CREATOR, "//dc:creator", metadata);
xp.extractContent(xmlDoc, Metadata.DESCRIPTION, "//dc:description", metadata);
xp.extractContent(xmlDoc, Metadata.LANGUAGE, "//dc:language", metadata);
xp.extractContent(xmlDoc, Metadata.KEYWORDS, "//meta:keyword", metadata);
xp.extractContent(xmlDoc, Metadata.DATE, "//dc:date", metadata);
xp.extractContent(xmlDoc, "nbTab", "//meta:document-statistic/@meta:table-count", metadata);
xp.extractContent(xmlDoc, "nbObject", "//meta:document-statistic/@meta:object-count", metadata);
xp.extractContent(xmlDoc, "nbImg", "//meta:document-statistic/@meta:image-count", metadata);
xp.extractContent(xmlDoc, "nbPage", "//meta:document-statistic/@meta:page-count", metadata);
xp.extractContent(xmlDoc, "nbPara", "//meta:document-statistic/@meta:paragraph-count", metadata);
xp.extractContent(xmlDoc, "nbWord", "//meta:document-statistic/@meta:word-count", metadata);