Change Font Size of entered text on PDF in Preview 9.0

I've read several similar questions but they appear to be outdated. Many mentioned a "show fonts" option in the "Tools" menu which does not exist. Others mention a couple ways to show the markup toolbar, which does include a font formatting option, but changing these options does absolutely nothing to the text I'm entering. I've tried highlighting existing entered text and modifying the values, and I've tried changing the values before entering new text. Nothing seems to be working, and my text is far too large to fit on the field I'm trying to fill out.

Any other ways of changing the font size that I'm not seeing? Is this maybe a bug with this version that'll be patched soon?

Thanks.

In the markup toolbar, all you have to do is add a text box and then any text will be customizable using the text formatting options