In Photo Slideshow Director HD for iPad, the transition effect will be randomly applied to each slide by default. However, you are able to customize it your own way if you don´t like the preset transition effects.
Customize transition effect
Change the transition: In the project timeline, tap the 
icon and the transitions list pops up. Tap one to select it as the current transition.
Note: You can apply one transition effect for the whole slide show by turning on the “Apply to All” button.
