How Do I make editable text field font size bigger

This may have been answered before but I can't locate it.  I'm new to adobe acrobat DC (actually using the trial version to see if it will work for me).  Anyway I'm creating some artwork and want to have an editable field above the picture where the person could add someone's name in Arizonia font at a size that fits the image.  Currently I see only that the editable text field font is 12, 14, 16, 18 pt.  That's way too small but there is no way to change it.  I can change but I want it to be editable at about 32pt.  This is an 11 x 14 image.  The PDF file format is so they can add the persons name above it.

How do I make the editable field a font larger than the tiny 12 -18 pt choices that show in Adobe Acrobat.  Surely there is a way to do this?  Thanks.