Straighten a Crooked Photo?

There are three ways: (1) Start by clicking on the Straighten tool (A) up in the toolbar (at the top of the window; it’s the seventh tool from the left), then just drag it along an edge you want to be straight (for example, in a landscape photo, you’d drag it along the horizon line), and it straightens your photo. The second method (2) is to let Camera Raw auto-straighten it for you. Click on the Lens Corrections icon (it's the sixth icon from the left) beneath the histogram, then click on the Manual tab, and under Upright, click on the Level icon (it’s the one in the center). Lastly, (3) you could just do it yourself by rotating the photo until it’s straight: click on the Crop tool (C) in the toolbar, move your cursor outside the cropping border, and then click-and-drag in the direction you want to rotate. Stop dragging when the image looks straight, then press Return (PC: Enter) to lock in your crop.