Cropping an Image
Photoshop CS3 Tutorial
How to Crop an Image in Photoshop
Image cropping allows you to reframe your subject and create stronger and more powerful images.
In this topic we will crop an image in two different ways. If you use the second method and leave the size and resolution blank, you will get the same results as the marquee method.
Open an image in Photoshop (File > Open...).
Select the Rectangular Marquee tool and click-drag to select the new framed area.
Choose Image > Crop. This method resizes the image and retains the image resolution.
A second method allows you to alter the size and resolution. Starting with your original image, select the Crop tool.
In the Crop tool options, set the Width, Height and Resolution. If you wanted the image to be 8 inches wide, you would type 8 in. To set the dimension to pixels, type the dimension plus px.
Click-drag the Crop tool across your image and press the Enter key.
The interpolation method for resizing is set the the Preferences > General section. For enlarging, use Bicubic Smoother. For reductions, use Bicubic Sharper.
Crop Tool Units
The Crop tool dimensions are set in the Preferences > Units & Rulers dialog. If you want to set you image to a specific size in inches, make sure the preferences are set to inches.