Page transition direction types for #POPPLER_PAGE_TRANSITION_SPLIT, #POPPLER_PAGE_TRANSITION_BOX and #POPPLER_PAGE_TRANSITION_FLY transition types
inward from the edges of the page
outward from the center of the page
Page transition direction types for #POPPLER_PAGE_TRANSITION_SPLIT, #POPPLER_PAGE_TRANSITION_BOX and #POPPLER_PAGE_TRANSITION_FLY transition types