My text is too tiny when I fill in a PDF form

Using Linux Mint 20.2 Uma Cinnamon.

I have a pdf form which I want to fill in and print to paper.

But when I type text into it, my text is too tiny. When printed to paper you would need a magnifying glass to read it.

The text of the form itself is the right size, the problem is that the text I type in is tiny.

Question: how do I make the text I fill in bigger, while keeping the other text in the form the same size?

I want to make the text I type into the form to be two or three times or more bigger, while keeping the other form text the same size.

I have had the same problem with every pdf form I have ever wanted to fill in.

I have tried using every available pdf reader but they all have the same problem. I have tried Evince, Ockular, Document Reader, LibreOffice, Chromium.

I only have this problem when I fill in pdf forms, nowhere else.

Thanks.