rightToLeft
True when pages progress right-to-left (EPUB page-progression-direction="rtl", PDF /ViewerPreferences /Direction /R2L). A paged viewer should put page N+1 visually LEFT of page N.
True when pages progress right-to-left (EPUB page-progression-direction="rtl", PDF /ViewerPreferences /Direction /R2L). A paged viewer should put page N+1 visually LEFT of page N.