Fixed-Layout Books: Vertical Scrolling
Some books, such as Manga, are designed for content to be presented in one continuous scroll without white space or gaps. Vertical scrolling allows the reader to view and read the content from top-to-bottom. Apple Books presents the content documents in the order listed in the <spine> element, which defines the linear reading order of the book. By specifying vertical scrolling, Apple Books presents the content continuously without any space between content documents.
To specify vertical scrolling, use scrolled-continuous in the <meta property="rendition:flow"> tag in the <metadata> element within the OPF file. See Vertical Scrolling.
Screenshots
Screenshot size requirements have been added for 11-inch iPad devices (iPad Pro, 4th generation iPad Air) and for 10.5-inch iPad devices (iPad 8th generation, iPad 7th generation, iPad Pro, iPad Air).
11-inch:
1668 x 2388 pixels (portrait)
2388 x 1668 pixels (landscape)
1640 x 2360 pixels (portrait)
2360 x 1640 pixels (landscape)
10.5-inch:
1668 x 2224 pixels (portrait)
2224 x 1668 pixels (landscape)