Delete a Keynote presentation on Mac
Important: If you turned on iCloud Drive for Keynote (in System Preferences on your Mac), deleting a presentation from iCloud Drive removes it from iCloud and from all other devices and Mac computers that use the same Apple ID.
Delete a presentation
If you don’t know where the presentation is, locate it first.
Select the presentation, then do one of the following:
Drag the presentation to the Trash icon in the Dock.
Press Command-Delete on the keyboard.
To empty the Trash (and permanently remove the presentation from your computer), click and hold the Trash icon in the Dock, then choose Empty Trash.