title_body: How to fit the size of a font to fit a PDF fillable box More of a pdf editing question.
  A lot of PDF forms restrict you to put 1 letter in each box when filling them
  Something like this:
  
  Has anyone found a way to fill these forms via computer ? Very hard to try to change the font size to fit these
upvoted_answer: I wasn't aware of that, but apparently Adobe Acrobat reader (free) has this feature and it works amazingly well.
  Open the document, then click &quot;Fill and Sign&quot; and hover over the boxed input element, it will fill it automatically within the borders