Under Gameobject/UI/Text I put text into my game. My problems are as follows. 1. I cant make the size of the writing over 25. 2. At size 25 it cuts off some of what I write. I think these problems are related. If you need more info just ask me.
I know this is old, but I think I figured it out. You have to go to the inspector and adjust the Rect Transform on the canvas. For example i changed mine to 500 X 100 and I was able to goto 26 without it cutting off. @Goatcheesecough
You can use the Rect Tool to increase the size of your text box. Note that there is an upper limit to the font size. In case you hit that limit and still want a bigger text, simply hold Shift and drag the corner handle of the Rect Tool.