iCloud stores your presentations and keeps them up-to-date across your iOS devices, the web, and your computer so that you always have the most current versions at hand, no matter which device you used to make your latest edits.
You can edit Keynote presentations in a web browser using Keynote for iCloud beta. Keynote for iCloud beta is a web app that allows you to create and edit Keynote presentations using a supported web browser from a Mac or Windows computer.
Presentations you create using Keynote for iCloud beta are automatically available in Keynote on your Mac or iOS devices that are set up to use iCloud—and vice versa: If you create a presentation using Keynote on an iOS device or Mac, it appears automatically on the web in Keynote for iCloud beta.
See Keynote for iCloud beta Help for more information.
Open System Preferences on your Mac, then click iCloud.
Sign in using your Apple ID, or request a new Apple ID and then sign in.
Select the Documents & Data checkbox, then click Options.
Select the Keynote checkbox, then click Done.
Here are a few things to keep in mind about using iCloud to manage your presentations across devices:
If you edit and close a presentation when you’re not connected to the Internet, the word “Waiting” appears under the presentation thumbnail in the Open panel. The next time you connect to the Internet, the edited presentation is saved to iCloud.
If you edit a presentation on more than one device before saving any of your changes to iCloud, you will get conflicts. To avoid conflicts, make sure your edits are always saved to iCloud before editing the same presentation on another device. If you do get a conflict, you can choose to preserve any or all of the presentations that you edited.
If you delete a presentation, it’s deleted from iCloud and from Keynote on all your devices.
If you organize your presentations into folders on one device, you see the same folder organization on all your devices.
If you change the title of a presentation on one device, the title is changed on all your devices.
If you add a password to your presentation on one device, you need to enter the password to open the presentation on all your devices.
To share a presentation on iCloud, you need to save the presentation to iCloud first.