Due to the nature of software such as Photoshop, the effects that can easily be achieved are unbelievable. This means that raster images are not suitable for logo design.Īlthough it’s possible to use a large raster image for your logo, if you do intend to use it for large format printing you will need a ‘huge’ file which is simply not practical.Īlthough I’m throwing a negative spin on raster images they do have a positive. The alternative to vector is to use a raster graphics software such as Adobe Photoshop which is made up of pixels, which gives a ‘blocky’ looking effect when scaled up. What is a raster image and why is it bad for logos? Since logo designs are typically created in vector software, they can also be modified and tweaked at a later date, and can also be adapted for other media easier than raster. Due to Vectors being made of anchor points as opposed to pixels the file size is also microscopic meaning your PDF file sizes remain tiny despite the increased quality. The beauty of Vector files is that not only do they print with super clarity at any size imaginable, but they also remain sharp within low-resolution PDF exports which are essential for modern day document exchange. A vector image, such as EPS or AI format, is made up of precise mathematical points which mean it can be scaled to any size with no loss of quality. When designing a logo the standard method is to use a vector graphics software such as Adobe Illustrator. What is a vector image and why is it good for logo design? This is a mistake surprisingly common even within large respectable corporations resulting in an unprofessional result both in print and PDF production. Web graphics are generally not suitable for professional printing.Įditor’s note: This article was originally published on July 27, 2016, and has been updated for freshness, accuracy and comprehensiveness.One of the biggest mistakes I see in the world of logo design is the common use of Raster image formats such as JPEG, TIFF, GIFF, PNG etc for print. To recap, logo files should always be vector-based and SVG files can be used to display vector graphics online. Make sure the designer provides vector logo files when having your logo updated and ask your printer to double-check the resolution of images when having material professionally printed. With this in mind, consult a graphic designer when in doubt. Raster-based images can be embedded into Adobe Illustrator and vectors can be placed and even created in Photoshop. Any of the above file types can be exported to a pdf format, so these files can be either vector or raster or a combination of the two.ĭisclaimer: Graphics software has come a long way over the years, resulting in a lot of line-blurring between programs. The small exception to these rules is Portable Document Format (.pdf, PDF). Encapsulated PostScript File (.eps, EPS).Graphics Interchange Format (.gif, GIF).Joint Photographic Experts Group (.jpg, JPEG). The purpose of this post is to further explain the difference between these file types and to help determine which type is required for a variety of purposes. Raster graphics, such as digital photographs, are created using a grid of tiny pixels. Vector graphics, such as logo files, use intricate paths made up of points and lines to create an image. When zoomed in closely, the individual pixels can be observed.ĭigital graphic files will generally fall into one of two categories-vector or raster. Raster images are made up of many tiny squares called pixels and are often referred to as 'bitmap' images. This makes vector files the best format for graphic assets such as illustrations, icons and company logos, as the same file can be used for designs ranging from a mobile app to a large billboard without sacrificing quality or increasing file size. Vector files, made up of points and lines to create paths, can be scaled up and down without losing quality. What is the difference between vector and raster files for graphics?
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