The transition style (/S).
Optionalduration/D — the transition effect duration in seconds (viewer default: 1).
Optionaldimension/Dm — orientation; split/blinds only.
Optionalmotion/M — motion direction; split/box only.
Optionaldirection/Di — sweep direction; wipe/glitter/fly/cover/uncover/push.
Optionalscale/SS — starting/ending scale for fly (PDF 1.5; default 1.0).
Optionalfly/B — whether the fly area is rectangular + opaque (PDF 1.5; default false).
Optionaldisplay/Dur — the page's display time in seconds before auto-advancing.
A presentation transition + auto-advance for a page (ISO 32000-1 §12.4.4), passed to GigaPdfDoc.setPageTransition. style picks the effect; the remaining fields are optional and only the ones that apply to the chosen style are written (
dimension/motionforsplit,direction/scale/flyAreaOpaqueforfly, …). displayDuration is the page's/Durauto-advance time and is independent of the transition itself.