Choose the type of ad you want to create

In the new file dialog, choose the type of ad you want to create. 

Choose one of the following ad types:

• Banner ads are simple ads that fit a specific size slot in a web page or app.
• Expandable ads are small banner-size ads which expand when clicked. The close button then collapses the ad to its original size. 
• Interstitial ads present a full-page ad experience at natural transition points such as a page change, an app launch, or a game level load. Interstitials have a close button that removes the ad from the user's experience.

You can set a default ad type for new documents in your preferences.