Keynote User Guide for iPhone
- Welcome
- What’s new in Keynote 14.2
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- Intro to Keynote
- Intro to images, charts and other objects
- Create a presentation
- Choose how to navigate your presentation
- Open a presentation
- Save and name a presentation
- Find a presentation
- Print a presentation
- Copy text and objects between apps
- Basic touchscreen gestures
- Create a presentation using VoiceOver
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- Send a presentation
- Intro to collaboration
- Invite others to collaborate
- Collaborate on a shared presentation
- See the latest activity in a shared presentation
- Change a shared presentation’s settings
- Stop sharing a presentation
- Shared folders and collaboration
- Use Box to collaborate
- Create an animated GIF
- Post your presentation in a blog
- Copyright
Set the movie and image formats for Keynote presentations on iPhone
Keynote keeps movies and images in their original format, regardless of whether or not the format can be viewed on older computers and devices. You can change the optimisation settings if you want to make sure videos and images using newer formats — for example, High Efficiency Video Encoding (HEVC), High Efficiency Image Codec (HEIC) or Apple ProRes — can be viewed on any computer or device.
Optimise video and image formats
When you add HEVC, HEIC and ProRes media files to your presentation, Keynote can convert them into H.264, JPEG and PNG so they can be viewed on older Mac, iPhone and iPad devices.
Go to the Keynote app on your iPhone, then open a presentation.
Tap , scroll down, then tap Settings.
Turn on Optimise Media for Older Devices.
This setting applies only to movies and images you add from now on, and not to any existing media in your presentation.