Elitegroup EB-800C - Manual (Page 56)

ELITEGROUP COMPUTER SYSTEMS CO., LTD. Page 56
Font size -- This is for setting the font size. The font size set here will be applied to the ebook when you
read it. The current font size is shown below the option name (as shown above, the current font size is 15).
In this setting, there are 5 available font-sizes.