Did you ever wonder how to use Instant Alpha in Keynote? Instant Alpha let's you remove the background from an image you're using.

Here are 15 of the best presentation templates that are the most popular in 2016 on GraphicRiver—featuring PowerPoint, Keynote, and Google Slides designs.

Keynote has set the standard for presentation software ever since it was originally released in 2003. But until recently, you could only use it on a Mac or...