How to crop a picture in Windows 8 Paint?
Selected area of the picture can be cropped or cut using crop button.
Step 1: Using the select option, select the area of the image by clicking and
dragging on the image to highlight the area of the image you wish to crop.
Step 2: Click crop using any of the following three options,
Option 1: In hometab, select Crop.
Option 2: The shortcut key is Ctrl+ Shift+ X.
Option 3: Right click on the canvas and select Crop.
In the below picture, you can view the cropped portion of the image.