The first time you save a presentation, you name it and choose where to save it—on your desktop or in a folder, for example. Thereafter, Keynote automatically saves your presentation as you work. You can rename a presentation at any time or create a duplicate of it with a different name.
Click anywhere in the presentation window to make it active, then choose File > Save (from the File menu at the top of your screen).
Enter a name in the Save As field, then enter one or more tags (optional).
To choose where to save the presentation, click the arrow next to the Where pop-up menu, then choose a location (for example, a folder or your desktop) in the dialog.
In macOS High Sierra 10.13, click the arrow next to the Save As text field.
To make the presentation appear in Keynote on all of your iOS devices set up with iCloud Drive, save the presentation in the Keynote folder in iCloud Drive. (To see this option, iCloud Drive must be set up on your Mac.)
Tip: To create a new folder for the presentation, choose a location for the folder, then click New Folder at the bottom of the Save As dialog. Enter a name for the folder, then click Create.
Click Save.
Click the presentation name at the top of the Keynote window, then type a new name.
Click anywhere outside the dialog to dismiss it.
With the presentation open, hold down the Option key on your keyboard and choose File > Save As (from the File menu at the top of your screen).
Type a name for the copy, then press Return.
The copy is saved to the same location as the original. You can change where the copy is saved or send the copy to someone.
To save a copy of a presentation in another format (for example, Microsoft PowerPoint, PDF, or Keynote ’09), you make a copy of the presentation in that format. To learn how, see Export to PowerPoint or another file format.