Quote:
Originally Posted by KevinH
Hi,
FYI, KF8's internally are almost a one for one mapping to the AZK format, with the same skeleton, and fragment sections. The only real differences are that azks are just encoded by a special dictionary based word compression scheme and encoded into json.
To test this I converted the same epub into kf8 andazk using kindlegen and studied the differences which were quite minimal. Both are set up to allow "fragments" of up to 8000 chars or so to be loaded upon demand inside a page "skeleton". KindleUnpack simply builds up the original pages from the fragments and skeleton info provided in the KF8 (and then does a lot of link fixups, css link fixups, and etc) to create an epub-like structure.
This is perfect format for limited memory phones and tablets with their own webkits and web-based technologies.
I could never fully figure out the encoding/encryption used for the dictionary based word compression scheme of the azk otherwise I would have modified KindleUnpack to unpack them as well since much of the code would be re-usable from the kf8 code.
Given how much morewe know based on this thread, I may decide to revisit it.
Hope this helps,
KevinH
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Very interesting, Kevin. So KF8 ~= AZK?
However, given that AZK as a file format is not actually displayed anywhere, in any reader that I'm aware of, but is simply a bridge between KF8 and KCR for K4iOS, I would be even more interested to hear any comparisons you can do between KCR and KF8. Or a detailed analysis of the KCR file format (as used in K4iOS)? (Maybe there is one somewhere, I wouldn't mind being linked there.)
EDIT:
Quote:
Originally Posted by Hitch
To further the discussion, can you provide some screenshots of your eBook, with embedded fonts, from the K4iOS reader? From the sideloaded AZK?
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Sure! Attached.
And yet, in the other thread...
Quote:
Originally Posted by Hitch
My request, just to clarify, is for screenshots displaying embedded fonts carrying through on a PUBLISHED book, on K4iOS. Not a side-loaded book or a previewed book, an Indy-pubbed (so, uploaded via the KDP) published book.
Updated to add: the lastest KPG's (Kindle Publishing Guidelines) did confirm info on using media queries, generally, for the iOS, which is GREAT.
Updated to add, 2: we're looking at some recently-pubbed books from some clients of ours, that have embedded fonts. Will update if needed.
ETA, 3: we don't know when this started, but we just downloaded a book, to a different iPad, that we'd downloaded when this thread started, and now, it has the embedded sans font in the pullquotes. BUT, this is new. I know for a fact that this wasn't working just a few months ago.
Hitch
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Aha. So, no need for me to go via KDP. Although I probably should start doing that more...