PDF based flip books compatible with Apple Books app?

[MJP81]

Having done some searching, I realize that flipbooks are usually HTML5 or Flash based, and that many find them irritating.  However, what I am finding irritiating is that in the Apple Books app, some of what they offer are in PDF format, mostly books with large graphics, and of those books, some have a page flipping effect and some do not.

When there are graphics that span two open pages, this is helpful because you can view two pages in landscape mode without any gap between the pages.

There are other PDFs that simply scroll, and any PDFs I upload to Books myself can only scroll and only show one page at a time.

I have already contacted Apple's customer support, and they can't offer any explanation why some PDF books flip while others scroll.  The EPUB format has a menu option to switch between scrolling and flipping, but none of their PDFs have this same option.  HTML5 and Flash are not compatible with the Books app, so they have to be in PDF format.

So, how are some PDFs, at least those offered in Apple Books, able to flip pages and show 2-up in landscape when others don't, and how could I apply this to my own files when I upload them?

[George_Johnson]

It's odd that Apple can't tell you. It's not a feature of PDF is all I know. Their viewer is deciding to flip or scroll based on something, which could be private information within a PDF that their software includes. It would be helpful to examine a document that flips to see what's inside.

[MJP81]

The guy I talked to was a senior advisor, and all he could go on was the iPhone manual.  No in depth information to offer.  Said it had to be a feature native to the PDF.

[JR Boulay]

George_Johnson is right, it's not a PDF format feature it's an application feature that you can find in some (few) PDF readers (as ezPDF Reader for Android), but not in Acrobat.

[MJP81]

Would those PDF readers be able to save that feature to a PDF file?

[MJP81]

Page transitions.  From Adobe's own InDesign.  I'm amazed that none of the Adobe experts here realized that is what I was trying to find.

[Test Screen Name]

Page transitions! Part of PDF forever but up until today I though only Acrobat used them.  Or opnlyvthat, Acrobat only uses them in full screen mode. Glad you’ve found another app that uses them. Now, please don’t! (Yup, I don’t like them, in books, though I have used them in a presentation I was giving)

[JR Boulay]

🙂

Because there is no flipbook mode in PDF page transitions.

And because, as already said, it's an old unused feature for full screen mode only.

[MJP81]

Flipbook and Page transitions may technically refer to different file types, but it's the same functionality that I was trying to find for PDFs.  Whatever it is referred to as, all I wanted was a page turning effect for my PDF ebooks for reading.  As for everyone's opinion on it, I am not sure why it is so disliked.  As previously stated, PDFs that are available in Apple Books frequently utilize page transitions, so it doesn't seem to be an unused feature, at least for ebooks.