Increasing text layer area size without changing font in Premiere Pro
This is a good question, and it's not obvious.
When you click once with the text tool, you make a single line of text.  If you drag the handles of this line, the text gets bigger and smaller.
But if you click and drag with the text tool instead to create your text, you get a text box.  Now resizing the box with the handles increases the amount of text in the box, not the font size.
Video (animated gif because of this website) below to demonstrate: