Thread: Linux ePub reader app that best fullfills the ePUB standard
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Old 07-31-2021, 12:23 AM   #2
davidfor
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Quote:
Originally Posted by celiapgt View Post
Hi, everyone!

I'm trying to use an app for ePub reading in Linux that best fullfill the ePUB 2.x standard (I mean that I'm not interested in ePUB 3).

Which one do you recommend?

I always see so many differences between them with the same ePub file. I would love to know which is the most accurate to the fullfill the standard. I understand that no app does it completely. Maybe I am wrong.
This is largely because the standard is not very strict. It says things that are needed, but, leaves a lot open to interpretation. And a lot of it comes down to what they use for rendering. Exactly how they handle the rendering is different and hence the results are different.

There is also the fact that the ebook creators are not necessarily looking a the standards. Some are trying to force looks to match the paper books. Others are producing a version for Kindles and the epub is a side thought.
Quote:
I'm looking at something able to render ePub files as close to the ADE does because I was told by Windows users that ADE is the standard app (?).
Not really. I don't think I have ever seen a suggestion that people should actually read books using ADE. It is necessary for downloading epubs that have Adobe DRM. It is also suggested as a way to test books to get an idea whether they will work with ereader devices and apps that are based on the Adobe RMSDK. And the main reason for that is that these are not forgiving of errors in the books. For example, if you have an error in a stylesheet, anything based on the Adobe RMSDK will reject the complete stylesheet. But, using it as a your primary way of reading a book, no.
Quote:
Just to mention, I have tried KOReader, Foliate, ePUBReader, Calibre eReader, FBReader, CoolReader…
I can't help you there as I the only PC based ereader I have used recently is the calibre viewer. And I don't really think looking for a fully standards compliant app is useful. Or actually going to find something. You are probably better to look for the one that produces a result that you like. There is a lot of discussion about font rendering and whether the app shows ligatures and similar, how well they handle hyphenation, support for footnotes, etc. Then there is how they handle annotations and if they support syncing reading status and annotations. And how easy they are to use.
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