Logos need to be in web friendly formats such as .gif, .jpg or .png formats. Formats such as word files or PDF files are not usable.
“Wide” logos that have an icon or image to the left or right of verbiage or “tall” worsk best as "tall" logos with wording above or below an image or icon scale poorly and result in wording that is too small to read.
"Wide" Logo Examples
"Tall" Logo Example