P3aul,
You and I are having slightly different discussions.
I was trying to let Jane know if she searches through the forum, she is likely to find a number of topics on a slightly different "embedded fonts" than what she's looking for. Otherwise she might mistakenly waste time and effort on a project that will never do what she wants - and get very frustrated.
Installing fonts on her ereader is not going to put fonts in her epub.
