(int)(jasperPrint.getPageWidth() * zoom) + 1,
(int)(jasperPrint.getPageHeight() * zoom) + 1,
BufferedImage.TYPE_INT_RGB
);
JRGraphics2DExporter exporter = new JRGraphics2DExporter();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, this.jasperPrint);
exporter.setParameter(JRGraphics2DExporterParameter.GRAPHICS_2D, pageImage.getGraphics());
exporter.setParameter(JRExporterParameter.PAGE_INDEX, Integer.valueOf(pageIndex));
exporter.setParameter(JRGraphics2DExporterParameter.ZOOM_RATIO, new Float(zoom));
exporter.exportReport();
return pageImage;
}