[slowsmile]

Doitsu...I'm not sure why you brought in reflowable epubs and Enhanced Typsetting. I've specifically been talking about KFX generated from Kindle Create.

When you generate a KFX file from Kindle Create, what you will always get is a KFX ebook where every single page is a jpeg image. And when you load that KFX file into KP3 for test, yes Enhanced Typsetting will be enabled. But what does that mean?? If there is no text in your KFX then there is no text that needs checking or enabling by ET. That's why a KC-derived KFX ebook always passes ET. Right? That's also why Enhanced Typsetting is completely irrelevant for KFX ebooks currently generated by Kindle Create.

"If the epub/mobi file supports Enhanced Typesetting, Amazon will convert it to a KFX file, if the device/app supports it. If the green check mark is missing, users will get at most AZW3 files."

If I submit a KFX file that has been entirely generated by Kindle Create software where every page is a jpeg image, you're saying that if it fails KP3's Enhanced Typsetting then Amazon will automatically convert my KFX -- consisting of nothing but page sized jpeg images -- to reflowable KF8?? Are you kidding? Why would Kindle Previewer fail ET on a KFX file that was successfully generated from a pdf file by it's own Kindle software??