Apple Keynote 15.3.1 — Mac version

42 Apple-designed themes ship with the app. That's a solid starting point, but the real fun begins when you treat them as raw clay.

Drop a photo background with one click and a drag

1. Break a template on purpose. Pick any theme, then drag your own photo onto the title slide. Use the Instant Alpha tool to drop out the background behind a person. It's one click and a drag—no tracing needed. Suddenly it looks like a custom job.
2. Steal a PowerPoint deck. Drag a .pptx file straight into Keynote. The tables, charts and fonts come across. Tidy up the alignment with the built-in guides, then swap a clunky slide transition for Magic Move. It slides objects from one layout to the next and makes the change feel intentional, not jarring.
3. Annotate while you talk. If you present from an iPad, scribble a circle around a figure with your finger. The mark stays on screen just long enough to make your point, then fades. The room stays with you, not the slide.

When you are happy, export to whatever format the venue needs. PowerPoint, PDF, a QuickTime movie, even a folder of still images—it all sits under File > Export To. No converters, no fuss.

Three new transitions that move elements between slides

Version 15.3.1 is a tidy-up release, but the three new additions land where you'll notice them: in the movement between slides. Shift, radial wipe and character blur join the transition toolkit. Nothing flash-for-the-sake-of-it — Shift slides an element cleanly in one direction, radial wipe reveals from a centre point outwards, and character blur softens text as it enters or leaves. Used sparingly, they give a deck a polish that feels current without the cheese factor.

The Content Hub got a small but welcome tweak. Replacing a placeholder image used to mean hunting through Finder or Photos, dragging, dropping, hoping the crop still worked. Now you can swap an image directly from the Content Hub panel without ever leaving the slide. If you build templates others reuse — say a monthly report deck for a small team — this saves a dozen fiddly trips to the desktop.

Under the bonnet, Apple squashed bugs and nudged performance. On older Intel machines this means fewer stutters when scrubbing through a slide with half a dozen high-res images. The minimum macOS crept up to 15.6, so machines stuck on Monterey or earlier are left out this time. If you grabbed the keynote dmg for a fresh install, you'll need Sequoia already in place.

Three things beginners get wrong

1. Overloading Magic Move. It's tempting to slap the transition on every slide because it looks clever. Don't. Magic Move works best when two slides share an object — same photo, same shape, same text block — and you want the audience to track its journey. Use it once or twice in a deck. Any more and it becomes visual noise.
2. Ignoring the presenter display. Plenty of new users plug into a projector and stare at the big screen, craning their neck to read bullet points. Keynote has a customisable rehearsal view that shows your notes, a timer and the next slide on your Mac's screen while the audience sees only the current slide. Set it up once (Play > Rehearse Slideshow) and you'll wonder how you managed without it.
3. Exporting to PowerPoint at the wrong moment. If you build in Keynote then export to .pptx right before the meeting, odd things can happen — fonts shift, shadows misalign, builds flatten. Export a test copy the day before and step through every slide on a Windows machine or in PowerPoint for Mac. Fix the surprises early. A keynote torrent download gets you running, but the export still needs a human eye.

A teacher's Tuesday morning

Mx Okonkwo runs a photography course at a sixth-form college. Tuesday is the studio lighting module — 40 minutes, 28 students, one projector that takes a minute to wake up. The night before, they drag a dozen student portraits into a blank Keynote theme, use Instant Alpha to knock out the studio backdrops, then label each shot with a quick caption about the lighting setup.

On the morning, they plug in the HDMI cable, open the presenter display and set the timer. Each slide gets 90 seconds of commentary. When a student asks about rim lighting, Mx Okonkwo taps an iPad laid flat on the desk, circles the hair light in the photo with a finger, and the mark glows briefly on screen before fading. No laser pointer, no walking in front of the beam. The class stays focused on the image. Afterwards, they export the whole thing as a PDF and drop it into the shared Box folder — students who missed the session get the slides with the annotations baked in, ready to revise from. A keynote 15.1 download might have done the job too, but this version's image-swapping from the Content Hub let them drop in a last-minute replacement shot seconds before the bell without breaking the layout.

• Fresh transitions and builds: shift, radial wipe, and character blur give more control over how elements appear.
• Swap images faster with the new Content Hub replace option.
• Bug fixes and performance improvements keep things ticking on older Macs.

• macOS 15.6 or newer
• Runs on both Intel and Apple Silicon Macs