You can edit a PowerPoint template by adjusting its theme settings. Your options for editing templates look fairly similar whether you make them on the desktop or web ...
You can change the size of a slide in your PowerPoint presentation through the "Design" menu. Microsoft PowerPoint allows you to change slide sizes on the Windows PC, Apple MacOS, and web-based apps.
You can change the background to anything you like if you're using Powerpoint to create presentations: a picture, a color, a gradient, or even an in-motion video. You'll know the best background for ...