Do you have a word processor on your computer? I know it sounds silly but anymore you have to either dl and install free or pay for the big boys.
I use Libre Office (free). In the word processor there is a section to format the text, among the options is "outline text" Instead of the typical block text this option takes any font and makes it an outline (so you can follow the outline as a pattern). As for sizing, in Times New Roman font 1 point of font equals .01 inch in height (25 point font is 1/ 4 inch high, 100 point font is 1 inch high) Not all fonts follow this rule, but TNR does and it's a starting point.