Understanding Logo File Formats -- Great info explained in an easy to understand logical way! Know which file is used for what and what you should use & get from your Designer! :) Great for referencing and learning. I need PSF/AI, & high res.
Different file types serve various purposes. The pros and cons of a particular file type are what may make it more useful over another. A PNG file may not be the best choice when you are looking to keep file sizes low and have an image that has full cover