Bug 123044 Preview attached file in PDF and the page break in the first item didn't happen.
engine/org.eclipse.birt.report.engine.emitter.pdf/src/org/eclipse/birt/report/engine/emitter/pdf/PDFEmitter.java
/**
	 * The ratio of layout measure to iText measure
	 */
	private static final int layout2PdfRatio = 1000;
	
	/**
	 * the pdf Document object created by iText
	 */
	private Document doc = null;
	/**
	 * the Pdf Writer
	 */
	private PdfWriter writer = null;
	/**
	 * contentByte layer for pdf;
	 * cb covers cbUnder.
	 */
	private PdfContentByte cb, cbUnder = null;
	/**
	 * the height and width of the current pdf page.
	 */
	private float pageHeight, pageWidth = 0f;
	
	/**
	 * the logger logging the error, debug, warning messages.
	 */
	protected static Logger logger = Logger.getLogger( PDFEmitter.class.getName( ) );
	
	protected IReportContent report;