What is Vector Art?
Vector art and images do not contain pixels. Instead, they use mathematical formulas to determine the shape and color of lines and areas between points on a 2-dimensional plane. All details are determined by the number of points and complexity of the curves between those points. This way, when the image is blown up, the quality is not compromised in any way. Simple graphics such as logos and illustrations are generally created as vector art or images so they can be blown up to any size without sacrificing quality. This is usually always the preferred format for designers and printers to work with and especially so for logos.
Many of my new clients will often come to me with logos that were purchased on the internet in raster format or were created in a program such as Adobe Photoshop. This usually ends up becoming a big mistake! They were using this logo on their website where it looked great or on their business card or stationery where the logo was not required to be output in a large format, but this time the project requires that the logo be in a large format and the raster artwork they have simply looks terrible and very unprofessional. I always end up explaining to them, that from the beginning, they should have created the logo in a vector format using a program such as Adobe Illustrator. This is always the best way to create or design a logo and when you need the logo in raster format, to use on your website for example, you can always easily create that raster version from the vector version later on and at any size or resolution you desire! So, when creating or designing a logo always remember to use vector art.