Apple’s Photos for Mac was a combination between the previous generation’s iPhoto and Apple’s discontinued professional software, Aperture. Good thing is that everyone with a new-age Mac can get Photos for free! While free may not get you all the crazy powerful tools that you’d find in Photoshop, thanks to some hidden tools that were donated from Aperture, at least you can make some decent global edits to the photos you have.

Get Started

Obviously, you’ll need to get some images into the Photos app in order to start– either import straight from within Photos while the phone or camera is hooked up, or drag and drop a folder right onto the Photos icon in the dock. Now follow along:

Find a picture that you want to edit and double click it so it enlarges.Click on the Edit button on the top right hand corner of the window…

Source: Apple’s Photos: The Hidden Power Tools