Embroidery digitizing, is the art of using a computer to convert artwork into data that is recognizable by an embroidery machine. This tells the machine how to stitch the logo. One click on the computer does not automatically convert the design. The artist redraws the design in such a way that the embroidery machine knows what to do; from the size of the embroidery design, to underlay, type of stitch, color changes, and the order in which this all takes place. Very similar to an architectural blueprint that tells the builder what to do.
Not all embroidery digitizing is created equal. It takes years of experience to do quality digitizing. Anybody can redraw a design, but will it look good, or stitch well on the item you want embroidered?