How to manage to the sharpness of images in RTF and XLS exports? When I create a report containing a chart (graph) and export that to RTF/XLS chart is a jpeg image with low quality (something like 75 DPI or less). I would need to have print ready reports, it means approximately 150 DPI. Now the numbers is charts are hard to read even if letter size is large enough, JPEG image makes the text messy and thus unreadle. Is it possible to change image format (for example, from JPEG to PNG) and quality (75 DPI to 150 DPI)? And how to do it? In PDFs the charts are presented using vector graphics and the quality is good. Now RTF/XLS are not good enough for printing - or is there a trick? ]http://www.jasperforge.org/components/com_joomlaboard/uploaded/images/jasper_chart.jpg