If the photo is supposed to be straight but is not then learning how to use the straighten tool in Photoshop will help correct the issue.

Cropping an image seems like a simple task, but Adobe Photoshop's crop tool hides some powerful features that go well beyond the basics.

Photoshop offers a wealth of tools for cropping images. You can crop to an aspect ratio, use content-aware fill and many other techniques.

How To Edit Portraits In The Windows 10 Photos App 12 Aug 2015 15:58PM byePHOTOzine How to use the Windows 10 free photo editing app 'Photos' to enhance and edit portraits.