Aplicación FontEditor-Change Font Size
Does the default system font look too small or too large? Do you want to globally change text size?
This app allows you to scale system font size from 40% (smaller) to 180% (bigger).
★ working for Android 2.1 or above devices (Include 4.2+)
★ scale system font size from 40% to 180%
★ preview the scaled text before applying
★ Can modify the font size of the SD card(Only Pro)
Now supports Android 4.2+ but only for rooted devices!
It may not work for all devices. Please try it and let me know if it does not work on your device.