Highlight or otherwise format text in form fields.

[richell_huang]

Yes, the texts of interactive form fields could not be highlighted, you can only use typewriter tool or pencil tool to mark the mistakes you need.

[tw296]

This one has me bamboozled. I have some PDFs with form fields that have been filled out and want to highlight or otherwise format parts of the text in them. (They're assignments that students have done, I need to mark the mistakes.) While I can freely highlight the original document text (the questions, basically), I can't seem to do anything at all to the text in the form fields (the answers).

Is this impossible or am I just missing something? Any workarounds if it's not possible directly?