Simple...highlight the letter and change the font size to a very large
number. You have to type it in manually as such large numbers are not on the
drop-down menu. 800 point on an 8.5x11 inch page worked for me.
Highlight the character. Right-click on it and select Font. Change the
Size to something like 576 and click OK to see what it looks like.
Keep adjusting the size value until you get what you want.
