Alt+0152 should give you the ~(tilde) symbol you need on a spanish keyboard.
I am not sure what you are saying about the size problem. Click the
open in window button after creating a wordle and drag the lower right
corner to change its size on your screen.
If the size is a problem for printing or once you import it to another
program you will need to consult the help for your printer or that
other software to learn how to reduce or enlarge it.
Geeky Ideas for Desktop Crafting
2012/10/30 rosana <rosc...@gmail.com>: