I added a PDF and an ePub to my Books
collection on my Mac; they was synchronized between my iPhone and iPad.
I added bookmarks to the PDF on my iPad and noticed that they were synchronized with my iPhone, but not with my laptop. I added bookmarks to the ePub file on my iPad and noticed that they were synchronized between all three devices.
Books
on macOs opens Preview, which may be related to this issue.
Is there to get Books
on macOs to work the same way with PDFs as the other OS versions?