Is it possible to have a character counter visible for users to see and keep track as they complete a text field that has a maximum character set? Also, would it be possible to prohibit users from entering any additional text once the character maximum has been met?
Sorry we do not support these features for the HTML form format (the PDF form doesn't show the character count either but does prevent user from typing more chararacters after the limit is reached).
You can submit a Feature Request here :
Click on the "Submit Feature Request" on the right.