The latest versions of CrystalMaker for both Mac and Windows provide direct export of high-resolution graphics in a multitude of file formats - including JPEG.
CrystalMaker gives you immense flexibility in image file export or copying to the clipboard. You can specify the image resolution using the Graphics pane of the Preferences panel. You can specify image size and image format (e.g., "JPEG") using the graphics exporter sheet. CrystalMaker lets you choose from any of the commonly-used image formats, including JPEG, TIFF, PNG, BMP, Photoshop (Mac) and Pict (Mac).
To export graphics to a high-resolution pixmap file:
Choose the File > Export Graphics > 2D Graphics command. The graphics exporter sheet appears.
Select a tab to choose the image format you require, then use the magnification controls to specify your output size.
Click the Next button to display a standard file navigation dialog - and use this to specify the name and location of your graphics file.