Here is a mod for the visually impaired or people who would simply think the text in Empire is way too small.
There are 4 versions of the mod, each makes the text a bit bigger, about 2 points larger than the previous.
Unfortunately the largest setting I made (8 points larger) doesn't work quite right, too much text goes off screen.
Screenshots:
Spoiler Alert, click show to read:
Pick the size you want, extract the zip to
C:\Program Files\Steam\Steamapps\Common\Empire Total War\Data folder
And use Mod Manager to enable the mod.