Consistency matters more than variety
It's tempting to give every slide a different, flashy transition, but a presentation that cycles through many different effects tends to feel scattered and distracting rather than polished. Most well-designed presentations settle on one simple, subtle transition -- Fade is a common default -- and apply it consistently throughout with Apply to All, reserving a different or more dramatic effect only for a genuinely important moment, like moving into a new section.
Timing changes the feel entirely
The same transition effect can feel completely different depending on its duration. A very fast transition barely registers and can look like a mistake, while an overly long one starts to feel sluggish and slows down the pacing of a live presentation. A duration in the range of half a second to about a second is usually enough to feel intentional without drawing attention away from the content itself.
Frequently Asked Questions
Do slide transitions play automatically, or only when I click?
By default, a transition plays whenever you manually advance to that slide, but the Timing settings on the Transitions tab also let you set slides to advance automatically after a set number of seconds.
Do transitions still show up if I export the presentation as a PDF?
No -- a PDF is a static document, so slide transitions and other motion effects are lost in the conversion. Keep the original PowerPoint file if you plan to present live, and treat the PDF as a version for reading or printing only.