Yes this is possible.
Tell us the software use to create the page.
Was it created using Microsoft Word?
If so:
Open the page in MS Word.
With you mouse, select all the text on the page. You click at the top left
of the text with your left mouse button, hold your finger on the button and
drag the mouse to the bottom right corner of the page so all the text is
selected (black color over the text).
Click on Format on the top bar and then on Font. You can now change the font
type, size, color etc.