Keyboard Shortcuts To Increase or Decrease Font Size

When you have highlighted text in Photoshop, press Ctrl Shift >/< (Windows) or Command Option >/< (macOS) to increase/decrease the size of your text by 1 point.

You can also press Ctrl Alt Shift >/< (Windows) or  Command Option Shift >/< (macOS) to increase/decrease in 5 point increments.