Re: ePub or mobi from LaTeX or PDF? (was PDF editors)

[Richard <rrosner5@gmail.com>]

Actually, magika does tell you quite well what you need to know. .yjf could be something comparable to a JPEG, .kfx seems to be very similar to a BMP image. .meta seems to be just a JSON text file. .mf could be too, but at least it will be a text file. The rest is unknown binary data you'll probably have no way of handling, they will be proprietary. But of course you can still try the magic bit variant, maybe that can tell you if someone was already able to write something to handle it.

Am Fr., 28. Juni 2024 um 01:18 Uhr schrieb Van Snyder <van.snyder@sbcglobal.net>:

Thanks to Richard for the suggestion to try magika:

# find ./ -type f -exec ~/.local/bin/magika {} \;

Whence-Energy-2_YI5JSRVWOVJ5MO6EWC57GJKTBZLXXI23.sdr/Whence-Energy-2_YI5JSRVWOVJ5MO6EWC57GJKTBZLXXI23bbd37f35b4b251f45c1bf42879a62d70.yjf: Unknown binary data (unknown) [Low-confidence model best-guess: JPEG image data (image), score=28]

Whence-Energy-2_YI5JSRVWOVJ5MO6EWC57GJKTBZLXXI23.sdr/data/.pagination.cache/887fcb7c: Unknown binary data (unknown) [Low-confidence model best-guess: PE executable (executable), score=71]

Whence-Energy-2_YI5JSRVWOVJ5MO6EWC57GJKTBZLXXI23.sdr/YI5JSRVWOVJ5MO6EWC57GJKTBZLXXI23.mf: Generic text document (text) [Low-confidence model best-guess: JSON document (code), score=59]

Whence-Energy-2_YI5JSRVWOVJ5MO6EWC57GJKTBZLXXI23.sdr/Whence-Energy-2_YI5JSRVWOVJ5MO6EWC57GJKTBZLXXI23bbd37f35b4b251f45c1bf42879a62d70.yjr: Unknown binary data (unknown) [Low-confidence model best-guess: Intel 80386 COFF (executable), score=76]

Whence-Energy-2_YI5JSRVWOVJ5MO6EWC57GJKTBZLXXI23.sdr/AssetDownloadMetadata.meta: JSON document (code)

Whence-Energy-2_YI5JSRVWOVJ5MO6EWC57GJKTBZLXXI23.kfx: Unknown binary data (unknown) [Low-confidence model best-guess: BMP image data (image), score=89]

So except for one file, it's still a mystery what e-mailing a PDF to a Kindle reader with "convert" (without quotes) in the subject actually produces. The Kindle reader can read it, but so far nothing else I've tried can. In the end, I want to edit it and re-publish it on Amazon.