The Functions of Adobe Photoshop CS3

Updated February 21, 2017

Adobe released the CS3 version of its Photoshop image-editing program in 2007. The program, which is available for Windows and Mac OS operating systems, provides a variety of cursor-controlled tools that allow graphic designers to alter, enhance, combine and otherwise manipulate digital images. A few of Adobe Photoshop CS3's many functions stand out as examples of the program's usefulness and versatility.


Cropping is the trimming away of unwanted portions of an image. In addition to providing a basic cropping tool that crops images linearly, Adobe Photoshop CS3 has two tools that allow for added cropping functionality. The Magic Wand allows you to crop away portions of images based on similar colour values; and the Magnetic Lasso enables you to crop away portions of images that follow along the same edges and outlines.


Photoshop CS3 allows you to layer images by working with multiple images within the same image file and placing images on top of each other. When you're satisfied with your arrangement of on-screen images, you can elect to flatten the file, which compacts the image layers into a single image.

Image Adjusting

Adjusting tools allow Photoshop CS3 users to alter image colours and to correct colour problems. For example, you can adjust an image's hue, saturation, contrast and brightness by moving the corresponding sliders, or sliding controls, in the program's "Adjustments" menu. While "ue refers to the discernible colour of an image, saturation refers to the intensity of an image's colour. Contrast is the difference between an image's brightest and darkest colours, while brightness refers to the overall lightness of image colours.


Photoshop CS3 provides you with image filtering functions that remove and adjust certain aspects of images, creating artistic visual effects. Such filtering effects include "Chalk & Charcoal," which makes an image appear like a chalk and charcoal drawing; and "Lens Flare," which scatters streaks of light across an image. Unlike earlier versions of Adobe Photoshop, Photoshop CS3 utilises nondestructive filtering: Applying a filter to an image with CS3 will not result in an irreversible change.


Painting tools allow Photoshop CS3 users to apply different colours overtop of images. While the "Brush Tool" functions like a cursor-controlled paint brush, allowing you to paint shapes and designs freehand; the "Color Fill" tool, which is represented by an icon of a paint can, adds broad coats of colour to specific sections of an image.

Adding Text and Shapes

In addition to adding freehand designs and large patches of colour to images, users of Photoshop CS3 can add text and shapes. The text tool lets users insert -- and control the size, style, font and colour of -- text. The shape tools allow users to insert and control the dimensions and colours of various shapes. Users can also alter the width of the lines comprising these shapes.

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About the Author

Erik Devaney is a writing professional specializing in health and science topics. His work has been featured on various websites. Devaney attended McGill University, where he earned a Bachelor of Arts in humanistic studies.