This is a post by Katelyn Stevens on the PTC site.
1. Get to Know the Sketcher Tool
When it comes to the Sketcher tool, understanding all your available options is key. You can add text in a sketch when creating extruded protrusions and cuts, trimming surfaces, and while creating cosmetic features. In addition, the sketched text can be used by almost any solid or surface feature, as long as the rules for open and closed sketches are followed. You can create sketch text, modify its attributes, and place it along a curve. Once you thoroughly understand all the many capabilities of this helpful tool, you’ll immediately become more productive.