Collaborate on a shared presentation in Keynote for iCloud
Whether you’re the owner of a shared presentation or have been invited to collaborate, you can see the edits made by others in real time, hide or show editing activity, and more.
The number of people editing or viewing the presentation (not including you) appears beside the Collaborate button 
in the toolbar, and their names (or email addresses or phone numbers) appear in the participant list.
Accept an invitation to collaborate
Click (or tap, if you’re viewing the invitation on iPhone or iPad) the link in the email, message, or post you received.
If you’re asked, sign in and follow any instructions that appear.
The presentation opens based on the following:
On a Mac: The presentation opens in Keynote for iCloud or in Keynote for Mac. See the minimum system requirements in the Intro to collaboration in Keynote for iCloud.
In iCloud.com on a Mac or Windows computer: If you’re signed in to iCloud.com, the presentation opens in Keynote for iCloud, and it’s added to your presentation manager and to iCloud Drive.
On an iOS device with iOS 12 or later or iPadOS and Keynote 5.2 or later: The presentation opens in Keynote on your device and is added to your presentation manager.
On an Android device, or an iOS device without iOS 12 or later or iPadOS and Keynote 5.2 or later: The presentation opens in a browser where you can view but not edit it.
If you’re having trouble accepting an invitation, make sure you meet the iCloud and system requirements.
Collaborate on a shared presentation
Open the shared presentation.
If you don’t see the presentation you’re looking for in the presentation manager, click the link in the email, message, or post you received, and if asked, sign in to iCloud.com.
If you can’t open the presentation, see Accept an invitation to collaborate.
Edit the presentation.
Edits you and others make to the presentation appear in real time. Colored cursors and colored selections of text and objects indicate where others are currently editing.
Note: If a shared presentation uses the formatting conventions of a language other than your primary language, a message near the bottom of the presentation indicates which formatting is being used.
Do any of the following:
See who’s working in the presentation: Click the Collaborate button
in the toolbar to see the participant list which shows who has joined the presentation and who is currently editing or viewing it.If you’re the owner and the access is set to “Only people you invite,” you see the email address or phone number (instead of the name) for people you’ve invited but who haven’t yet opened the presentation.
Follow someone’s edits: Click the colored dot to the right of the name to see where that person is working. If you don’t see a colored dot, the person doesn’t have the presentation open.
Hide or show activity (colored cursors or selections): Click the View button
in the toolbar, then choose Hide Collaboration Activity or Show Collaboration Activity.
Opt out of a shared presentation
If you no longer want to have access to a presentation that was shared with you, you can remove yourself from the participant list.
Do one of the following:
With the presentation open: Click the Collaborate button
in the toolbar.In the presentation manager: Click Shared (on the left), then select the presentation. Click the More button
, then choose Collaboration Details.
Move the pointer over your name, click the three dots that appear, then choose Remove Me.
Removing your access removes your name from the participant list and removes the presentation from your iCloud Drive. If you later want to access the presentation again, click the original link to open it.
Locate presentations others have shared with you
Try the following:
Find the shared presentation link that was sent to you (in the original email or text, for example), then click it.
If you’ve opened the presentation before, click Shared on the left side of the presentation manager, then look for the presentation. If there are more shared presentations than fit in the current view, click See All in the upper right.
If you delete a shared presentation from the presentation manager and later want to see it again, just click the link you originally received. As long as the presentation is still being shared by its owner, the presentation reappears in the presentation manager.