Fonts and transparent polygons

I’m using PNG’s to print text to a screen. The PNGs are completely transparent with the exception of the text. How do I make the polygon the texture sits on transparent?

I may be misreading the question, so don’t fault me if this is not what you want…

gl.blendFunc(GL.SRC_ALPHA, GL.ONE);
gl.enable(GL.BLEND);

Still working on picking apart the texture… But to make it more clear… I want to make a polygon transparent.