Duplicating a Slide Master is a little different than adding a new Slide Master from scratch. And it is a smarter option because you do not have to make the same changes all over again. Let’s explain this with a scenario. Imagine you have formatted your existing Slide Master by applying a Background Style, adding a logo, or even adding your own Picture placeholder layout. And now you want a new Slide Master that’s almost the same as your existing one, but you want a different Theme Colors set to be used.
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