I provide all of my clients with all of the necessary files needed to reproduce their logo in any media. Basically I break them down into two categories. PRINT and DIGITAL. The PRINT formats will be used for printing on paper or anything else for that matter. These files can be scaled to any size and will hold their resolution. DIGITAL files are used for web, video, anything pixel based. They are very size specific. When any of the digital files are enlarged beyond their pixel size the image will begin to look rough around the edges and blured.
These are the file extensions and their corresponding names. I split them up into two categories PRINT and DIGITAL to further clarify the purpose of each file type.