Thread: How to manage kepub.epub in Calibre
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Old 01-11-2020, 10:34 PM   #16
davidfor
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Join Date: Jul 2011
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Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos
Quote:
Originally Posted by jxall View Post
Even if I do understand the general sense of your answer, kepubs have been around for a while. AZW3 are Amazon-specific files just like KEPUBS are Kobo-specific files, so - considering that both formats have been around for many years now - why do AZW3 files have native support and KEPUBs don't?

Kobo is the 2nd most popular producer after all. And as I have shown, it is very useful for backup-restore / practical reasons to have Standard Books' native kepubs in Calibre library instead of epubs in my library.

Couldn't you try to normalize this situation through your plugins? (Allow Calibre to recognize .kepub.epub files just like .kepub files?
Honestly, because it would just be pointless. As I said, there is absolutely no use for kepubs outside the Kobo ereaders. Everything else can just treat them as an epub and they will work. Just download the epub version and know that when you send it to the device using the extended driver, it will be transformed. Or download the kepub version, add it as an epub, and again, the extended driver will handle that. And in either case, you won't have to worry about what other devices or apps do.

As to the plugins handling this, I don't think it would be possible. None of them work at the point where file name would be seen. They are working at a point after calibre has already decided on what format the book is. And something Kovid as said suggests that it wouldn't be very easy to fix elsewhere as calibre is working on the extension. I haven't looked, and I have no interest in looking as the solution is to easy: rename the file.

Of course, you could ask Standard Books to set the file name correctly so that you can add it to calibre properly.
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