Every slide in a presentation has exactly one master slide. A master slide determines the text formatting style for the title and outline and the background design for all slides that use this master slide.
Every page in a drawing has exactly one master page. A master page determines the text formatting style for the title and outline and the background design for all pages that use this master page.
Select Slide - Change Slide MasterPage - Master Page.
Click Load.
Under Categories, select the category of templates.
Under Templates, select a template with the master slidemaster page that you want to apply. To preview the template, click Preview.
Click OK.
Do one of the following:
To apply the master slide to all of the slides in your presentation, select the Exchange background page check box, and then click OK.
To apply the slide design to the current slide only, clear the Exchange background page check box, and then click OK.
To apply the master page to all of the pages in your document, select the Exchange background page check box, and then click OK.
To apply the page design to the current page only, clear the Exchange background page check box, and then click OK.
Check Delete unused backgrounds to remove unreferenced background slides and presentation layouts from the document.