4. About the digitizing styles
Appliqués: Appliqué is a way of digitizing, means trimming cut from one piece of fabric and stitched to another to add dimension and texture. If the size of the logo is large relatively, use appliqué is a good way to reduce stitches count.
3D puff: 3D puff embroidery is another way of sewing, which involves use of foam under the threads. Sewing is normally done on the edge of the form, leaving the middle part of the form having the effect of being elevated.
3D-effect: 3D-effect embroidery, by contrast, is direct embroidery with fabric and thread only – no foam. Thick underlay with are usually used to achieve the three-dimensional effect.