I have a logo in .png format that I need to convert to a vector format (SVG). Is there an easy (and even better yet, free) way to do this? I don't have Illustrator. Downloaded Inkscape, but don't really get how to use the Potrace (Autotrace in Inkscape) function. I'd rather not but software for this, as I don't foresee having to do thos too much in the future. Any help would be appreciated!