convedrt existing epub for iBooks Author
I have an existing book in both .epub and .prc formats, successfuly being used in other channels (including Kindle) by lots of readers and purchasers. No need for me to recreate this from scratch, or import bits and pieces to re-assemble it. (I also have a PDF version.)
I'd like to create an iBooks version. iBooks Author won't let me import the .epub or .prc file.
Do I need to convert the .epub file I have, or is it iBooks ready as-is? If I need to convert/change/alter it, where can I find detailed steps for how to do this?
Note: lots of advice on getting things INTO the .epub format, which isn't what I need.
Thanks, -R
iBooks Author-OTHER, Mac OS X (10.7.4)