I found the screen in Calibre that let me "Preserve cover aspect ratio" when I convert to epub, but if I switch my output to mobi, that option disappears, and in the resulting file my cover stretches to accommodate the viewing screen. (I test the results in Calibre viewer) How can I make my mobi formats lock the aspect ratio of the cover? I'm using an imported jpg file.
I would think that since the epub already has the aspect ration set, converting THAT to mobi would solve the problem, but it doesn't. Shows what I know.
Thanks in advance.