I've imported and used full color images for the Kindle, you just have to remember that most eReaders are not great image renderer's, and unless you are running through a LCD tablet which isn't industry standard (yet) you have to be prepared for some image compromise.
Use what ever program you use to build your eBook to place the image were you want it, keep it basic though image text image works better than left or right text flows because eBooks work best with a unstructured format.
|