Vector vs. Raster
Vector Art
A vector image is created with mathematical points, lines, and curves, and can be scaled infinitely, both larger and smaller, with no loss of quality. Vector files cannot be easily used on the Web; however they can be used to make files to be placed on the Web with image editing software. Vector file formats are commonly created using Postscript programs such as Adobe Illustrator and Adobe InDesign, and usually have a .eps or .ai extension. Vector files are the best format to use when printing any version of the CSU logo.
When zoomed in, the image still looks crisp.
Raster (AKA Bitmap) Art
A raster image, also known as a bitmap image, is comprised of a series of small squares called pixels. Each pixel contains unique information about its color. If a raster file needs to be enlarged, the computer has to guess (or interpolate) to create new pixels between the old ones. This can result in the image becoming blurry when the size is increased. Raster file formats include .jpg, .tif, .gif, .png, and .psd extensions.
When zoomed in, the image looks pixelated.
