There are a number of different image file types and it can be confusing knowing which file type to use in which situation. The following is a short explanation of the most common image file extensions and their uses.
EPS – This is a vector-based file, which means that it features unlimited resolution – it can be reproduced at any size without any degradation of sharpness or quality. You may not be able to open this file if you don’t have compatible software. This file is intended for use by other design professionals such as printers or web designers.
PDF – A high-resolution vector-based version of your logo. A PDF can be viewed without the use of professional design software.
JPG – These files are primarily for use on websites as they are a smaller file size and cannot be made larger than the original size without some loss of quality. They will always have a coloured background (ie not transparent, however the colour could be white). Other uses can include email signatures, electronic letterheads etc.
PNG – a PNG file is similar to a JPG in many ways however it has one significant difference: it can feature a transparent background. This is useful if you want to overlay your logo on a coloured background. This file type is considered standard for pristine logo presentation on websites and other electronic media.