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
* @param endY 				the end Y coordinate of the line
	 * @param width 			the lineWidth
	 * @param color 			the color of the line
	 * @param lineStyle 		the given line style
	 * @param contentByte 		the given pdf layer
	 */
	private void drawLine(float startX, float startY, float endX, float endY, float width, 
			Color color, String lineStyle, PdfContentByte contentByte )
	{
		 
		
		if (null == color || 0f == width || "none".equalsIgnoreCase(lineStyle)) 
		{
			return;
		}
		contentByte.saveState();
		if ("solid".equalsIgnoreCase(lineStyle)) 
		{
			drawRawLine(startX, startY, endX, endY, width, color, contentByte);
		}
		if ("dashed".equalsIgnoreCase(lineStyle)) 
		{
			contentByte.setLineDash(3*width, 2*width, 0f);
			drawRawLine(startX, startY, endX, endY, width, color, contentByte);
		}
		else if ("dotted".equalsIgnoreCase(lineStyle)) 
		{
			contentByte.setLineDash(width, width, 0f);
			drawRawLine(startX, startY, endX, endY, width, color, contentByte);
		}