Tip 2: Making images with shadows look well on any website
If you enable shadows and lighting for the frames, ImageFramer will export the images with the external shadow. Obviously you want the shadow to look well on your background.
If your target background is a solid color, you can (starting with ImageFramer 2.4.3) set the background color in Image tab to the target color and export the image in JPG. The resulting image will have its shadow on your selected background color. Remember, you can pick the color with the colorpicker tool in the Color paletter (it looks like a mignifying glass).
If your background is not a solid color or you want your image to be able to fit any background, you should export the image in PNG or TIFF formats. These formats are saved with transparency information, so the shadow is really partially transparent and can be dropped onto any surface. JPG image format doesn't allow transparency at all, that's why it's now saved with selected background color.