[Q] Is there a way to adjust the font size of apps without root? topic

I just bought the Galaxy Tab S 8.4 and not sure if I can get used to the font size throughout. Some reading apps have the option to increase font size but many apps don't

I know I can make adjustments using Xposed Framework. I just want to avoid tripping Knox given the device is so new. Hoping there is another way to make adjustments.