Seitenvergleich

File outputFile=...
UIDocument<Component> uiDocument = getPageView().getDocument();
if (uiDocument != null && //
    uiDocument.getState() == Document.BasicState.READY && //
    uiDocument.getPageCount() > 0) {
	final EventList<Page> pages = uiDocument.getPages();
	final ReadWriteLock lock = pages.getReadWriteLock();
	lock.readLock().lock();
	try {
		Page page = uiDocument.getPage(0);
		FileOutputStream fos = null;
		try {
			fos = new FileOutputStream(outputFile);
			final PageSegmentSource pss = page.getPageSegment(DocumentLayer.DEFAULT).getSource();
			final SeekableInputStream stream = pss.getStream();
			synchronized (stream) {
				stream.seek(0);
				IOUtils.copy(stream, fos);
			}
		} catch (final Exception e) {
			e.printStackTrace();
		} finally {
			if (fos != null) {
				try {
					fos.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
	} finally {
		lock.readLock().unlock();
	}
}