Bug 196272 Text position is incorrect in postscript and ppt.
Text position need to be ajusted according to baseline position.
engine/org.eclipse.birt.report.engine.emitter.pdf/src/org/eclipse/birt/report/engine/emitter/pdf/PDFPage.java
*            the start Y coordinate of the line
	 * @param endX
	 *            the end X coordinate of the line
	 * @param endY
	 *            the end Y coordinate of the line
	 * @param width
	 *            the lineWidth
	 * @param color
	 *            the color of the line
	 * @param contentByte
	 *            the given pdf layer
	 */
	private void drawRawLine( float startX, float startY, float endX,
			float endY, float width, Color color, PdfContentByte contentByte )
	{
		startY = transformY( startY );
		endY = transformY( endY );
		contentByte.moveTo( startX, startY );
		contentByte.setLineWidth( width );
		contentByte.lineTo( endX, endY );
		contentByte.setColorStroke( color );
		contentByte.stroke( );
	}
	private void drawText( String text, float textX, float textY,
			FontInfo fontInfo, float characterSpacing, float wordSpacing,
			Color color, CSSValue align, boolean isTotalPage )
	{
		PdfContentByte currentContentByte = isTotalPage
				? totalPageTemplate
				: contentByte;