Hello Makoto, There are IMO some pros and cons for each approach. *A single HTML version, rendition:layout=reflowable, rendition:flow=scrolled-doc* Pros - Could work just fine in most EPUB reading systems as long as they support scrolled-doc and if there's proper CSS for each image (max-width would make a big difference) - Feels like the right approach on the Web as well Cons - Can be very heavy to load all images in memory - Since it's reflowable, it's not clear how the viewport will be set (for example, will the images fit in width?) *Multiple HTML files, rendition:layout=pre-paginated, rendition:flow=scrolled-continuous* Pros - Semantically, this might be the best approach for EPUB Cons - There could be gaps between images - Implementing scrolled-continuous can be complex for EPUB reading systems - Viewport might zoom out to see the entire image, which is not necessarily what we want with such manga *Multiple HTML files, rendition:layout=reflowable, scrolled-continuous* Pros - (I don't see anything better about that approach) Cons - There could be gaps between images - Viewport could be pretty much anything since it's reflowable IMO this illustrates fairly well that we're missing a few things in EPUB to properly support these types of publications. For EPUB 4 we should consider the following: - allow images in the reading order - provide the ability to set the viewport in a more flexible manner than just zooming out on an image (pre-paginated) Best, Hadrien
Received on Wednesday, 20 June 2018 07:56:39 UTC