Comment 4 for bug 2023646

The Apple Book works but it ignores the .ttf font, while happily accepting the .otf one. (On the other hand, the font works in Kindle but the footnotes appear in the text area as well as in pop-ups (as they do in Calibre)! I think the file is a bit of a mess, having been converted from LaTeX using tex4ebook. I’m sure I’ll get to the bottom of it eventually.) The .ttf font issue is a pain because it has a very specific editorial function, whereas the .otf font has only an aesthetic function. Apple’s Digital Book Essentials uses an example with media-type="application/x-font-ttf" so I’ve switched back to that, to no avail.

> On 13 Jun 2023, at 13:24, Kovid Goyal <email address hidden> wrote:
>
> What doesnt work in Apple Books? You mean the actual epub file doesnt
> work or apples publishig process rejects it?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/2023646
>
> Title:
> Calibre warns that MIME type application/font-sfnt is wrong for .ttf
> font
>
> Status in calibre:
> Won't Fix
>
> Bug description:
> Calibre 6.20, MacOS 13.4
>
> This is a very minor thing but Calibre warns that MIME type
> application/font-sfnt is wrong for .ttf fonts but ePubcheck likes
> application/font-sfnt and not the alternatives. I believe that either
> is supposed to be acceptable.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/calibre/+bug/2023646/+subscriptions
>