It’s a good idea to save your document often as you work. After you’ve saved it for the first time, you can press Command-S to save it quickly while you work, using the same settings each time.
Choose File > Save, or press Command-S.
In the Save As field, type a name for the document.
Select the folder where you want to save the document from the Where pop-up menu.
If the location you want isn’t visible in the Where pop-up menu, click the disclosure triangle to the right of the Save As field, and then navigate to the location you want to save the document.
If you don’t see the Where pop-up menu, navigate to the location where you want to save the document.
If you want the document to display a Quick Look in the Finder in Mac OS X version 10.5 or later, select “Include preview in document.”
If you want the document to be opened using Keynote ’08 or PowerPoint, select “Save copy as” and choose the file format you want.
If you or someone else will open the document on another computer, click Advanced Options and set up options that determine what’s copied into your document.
To learn about reducing overall document size when including movies or audio, see Reducing the Size of Media Files. To learn about reducing document size if you’ve used reduced image sizes within the document, see Reducing Image File Sizes.
Click Save.
If the document was created using an earlier version of Keynote, you are asked whether to save the document in the same format.
You can generally save Keynote documents only to computers and servers that use Mac OS X. Keynote is not compatible with Mac OS 9 computers or Windows servers running Services for Macintosh.
If you plan to share the document with others who don’t have Keynote installed on their computers, you can export it for use in another application. To learn about exporting your document in other file formats (including QuickTime, PowerPoint, and PDF), see Sharing a Presentation Across Platforms.