A friend of mine is starting his own business and he asked me to edit the logo he already has made, so it can be stretchable (a vector I'm assuming). He says it will be used for a sign. He said whenever they tried it before the logo would become pixelized and distorted.
I turned the logo into a vector but I am not sure what type of file to save it as, I don't know if I should send them just a plain .png, the .ai file itself or something completely different. Any help?