Raster images vs vector images1/1/2023 ![]() ![]() Raster images vs vector images software#While software like Adobe Photoshop will allow you to increase the pixels per inch to fit these specifications, the image looks really bad. Commercial printing can and does use raster images all of the time, but they are high quality images (240×240 pixels per inch, or 240ppi). Since raster images get blurry when they’re enlarged, small raster files shouldn’t be used for commercial printing. Images sized this way for web graphics provide enough clarity for computer monitors, and allow websites to load quickly due to their small file size. Websites use images that are 72 pixels per inch (72ppi), which means web graphics need to have 72×72 pixels in one inch to appear photographic and clear. This is because websites use raster images, and raster images cannot be enlarged without an obvious decrease in image quality (your image will be blurry or appear bitmapped). Technically they can be used, but they will look very bad. Why won’t my web graphics work for printing?ĭesign clients frequently ask why the graphics they use on their web site cannot be used for brochures or catalogs. Raster images cannot be enlarged beyond a certain point, because they will appear pixelated. GIF, JPEG, and PNG file formats are the file types used for web graphics. Raster images work with pixels, rather than mathematically-based software that creates lines and colors, as with vectors. Also, images created in software like Photoshop are raster images. If you enlarge the picture (sometimes 900% or more) you can see each individual pixel. Any photo you take with your phone or digital camera is a raster image. When you zoom out from the pixels far enough, you get see the image. Each pixel represents a tiny, individual square of color. Raster images are made of a grid containing pixels. When a raster graphic is increased in size for commercial printing it will either appear bitmapped or blurry, so it’s best to keep them at 100% and use the appropriate file size that’s best for your medium – whether that’s for the web or printing. This raster graphic shows the actual pixels that make up the image when enlarged 965%. Raster images, on the other hand, can be enlarged, but look bad when made too big. If you create a vector logo, you can use it on a business card or a building, and it will be precisely the same in terms of clarity. The cool thing about vector artwork is that you can make it any size, no matter how small or large, without sacrificing quality. Text can also be turned into points and shapes (this is referred to “converting text to paths” or “changing text to outlines”). Usually text can also be created with this software. ![]() WIth vector software, you can shade and color these shapes to create some rather stunning, realistic images, or use them to create simpler images like cartoons, charts and other images. Software programs like these provide tools to create shapes, such as lines, points, circles, curves, and rectangles. Vector graphics are created by software such as Adobe Illustrator, CorelDraw, as well as a large number of other freeware and purchased apps (click here for a handy list of non-traditional vector software). Vector images are shapes that can be colored or shaded, whereas raster images are made of tiny pixels. If vectors are the paint-by-number variety, raster images could be explained as being the actual painting – made with a brush or camera. Vector graphics are much like the little spaces you paint in to eventually create the illusion that becomes an entire painting. Raster images vs vector images how to#Here are a few pointers to help you better understand what vector and raster images are, when to use them, as well as how to convert them into either file format.ĭid you ever play with a paint-by-number kit? That’s an easy way to think of vector images. While it looks like a photo, it’s actually a vector image – and that’s an important file-type distinction when it comes to using the art for everyday projects. We’ll use this file to create a mock-up banner (using vector art) and a social media post (using raster art). This is a perfect image to discuss the differences between vector and raster images, as well as how to make both from the same file. Today I’m working with a vector image from. Your file type matters – especially when it comes to posting social media graphics, working with commercial printers, or creating really big graphics, such as a banner or trade show display. When selecting stock art to use for a specific project, it’s critical to know the difference between these two file types. When working with images, you might have come across the terms “vector” or “raster” when describing an image. ![]()
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