Cropping images

Cropping is the process of removing portions of an image to create focus or strengthen the composition. You can crop an image using the Crop tool  and the Crop command. You can also trim pixels using the Trim command

Related Subtopics:

Using the Crop tool
Using the Crop and Trim commands
Transforming perspective while cropping (Photoshop)
Using the Crop and Straighten Photos command (Photoshop)