When you enlarge a vector image, the mathematical formula used to create it stays the same. Raster images lose clarity when zoomed in or scaled up, so they are called “lossy” graphics.Ī point is the first step in the instructions (or vectors) for the computer to mathematically calculate the line or curve between it and another point that make up an entire shape. You can print a vector logo on a small sheet of paper and then enlarge the same vector logo to billboard size and keep the same crisp quality!įeel free to download and print out this handy reference that outlines raster and vector graphic file formats:Ī pixel is the smallest single element in a display device such as a computer monitor or television screen and each of these dots is assigned a color and intensity. In this way, the vector shape created can be infinitely scalable because it is not limited by the number of pixels.Īn example of a vector graphic is a logo. If you zoom in on a vector graphic, the edges of the shape will appear smooth, there will be no jagged edges to it because it is not comprised of pixels. Vector graphics are created with points, or mathematical calculations from one point to another called vectors that form lines and shapes, to be precise. You can print a raster image such as a photo, but you need to ensure you have enough pixels: at least 300dpi (dots per inch). If you’ve ever downloaded an image from the web and tried to print it and found it to be blurry or have a jagged appearance to the lines (otherwise known as pixelation), then you’ve experienced firsthand the limitations of an image that’s reliant upon the number of pixels it contains! It may have looked crisp at 100% magnification on your screen, but if you were to zoom in the graphic, you would actually see the individual pixels that comprise the whole.Ī tangible example of a raster graphic is a photograph. A “low res” image such as this would be for better suited for screen or web graphics, while a “high res” (high resolution) image would have more pixels per inch and thus be able to be printed and not look blurry. Raster graphics are created with pixels: the lower the resolution, or number of pixels per inch there are, the smaller the file. To me, that shows an inherent misunderstanding between the two main type of graphics: raster and vector. Click to listen to the audio blog of this post here!Īre you 100% sure when to use Photoshop and when to use Illustrator? It’s okay if you are confused because I see graphic designers on Fiverr all the time say that they will create a logo in Photoshop for their customers.
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