Automatically Saving a Backup Version of a Presentation
Each time you save a presentation, you can automatically retain a copy of the last
saved version. That way, if you change your mind about edits you made, you can go
back to (revert to) the backup version of the presentation.
The best way to create backup versions is different, depending upon which version
of Mac OS X you’re running. Mac OS X v10.7 (Lion) and later automatically saves a
snapshot of your presentation every time you save. You can access an archive of
all previous saved versions at any time. To learn about accessing and using past
document versions in Lion, see “Finding an Archived Version of a Presentation” on
If you’re running Mac OS X v10.6.x (Snow Leopard) or earlier, you can set up Keynote
to automatically create a copy of the last saved version of your presentation. You may
also find this useful if you’re running Lion, and you want to save a backup version of
your presentation on another hard disk on your network.
To create an archive of previously saved versions of your presentation on Lion
Choose File > “Save a Version,” or press Command-S.
To create a copy of the last saved version of your presentation:
Choose Keynote > Preferences, click General, and then select “Back up previous
The next time you save your presentation, a backup version is created in the same
location, with “Backup of” preceding the filename. Only one version—the last saved
version—is backed up. Every time you save the presentation, the old backup file is
replaced with the new backup file.