You can turn your slideshow into a QuickTime movie that includes all animated transitions and object builds.
You can create an interactive movie that viewers can advance at their own pace, or you can create a self-playing movie, with transitions and builds timed just as you set them.
Choose Share > Export and then click QuickTime.
Choose an option from the Playback Uses pop-up menu:
If you choose Fixed Timing, specify how long slides appear and how long it takes to complete object builds by typing values in the Slide Duration and Build Duration fields.
If you choose Fixed Timing, you can choose an option from the Repeat pop-up menu:
To make the slideshow appear on the whole screen rather than in a window, select “Enter full screen mode when opened.”
Choose a playback quality and file size from the Formats pop-up menu:
To include the slideshow soundtrack or the recorded audio, select the appropriate Audio checkbox.
If your slideshow has a transparent background you want to preserve in your QuickTime movie, select “Include transparency.”
Some transitions might not work correctly with this option selected.
Click Next, type a name for your movie, choose a location in which to store it, and click Export.
If the slideshow includes a soundtrack, two movie files are created. The file with “soundtrack” appended contains only the audio and can be discarded.
When you export a self-playing slideshow as a QuickTime movie, note the following:
If the slideshow includes a soundtrack, the movie won’t end until the audio finishes. If your slideshow is a lot shorter than the audio, you might want to use a shorter audio file.
If the slideshow contains an Exit Slideshow link, clicking it makes the movie exit full-screen mode.