Acrobat Reader DC: Underline, highlight, and strikethrough are all greyed out
Hi everyone! I'm using Acrobat Reader DC. It's updated to the latest release 2021.007.20099
After taking a couple of months' break from study, I opened up a .pdf and tried to highlight it, but I can't.
I can click and drag to select the text, but then in the popup that appears, the 'underline', 'highlight', and 'strikethrough' icons are all greyed out. The 'Copy text' and 'Edit text and images' icons are working fine, but the other buttons are greyed out.
I've tried on multiple PDFs, none of them protected - in properties/security they all say that there is no security method, and that everything is 'allowed' except for document assembly and page extraction. These are also PDFs that I have highlighted in the past. I can see highlights in them, but can't make any new ones.
I've restarted Acrobat Reader, but that doesn't fix it.
Any idea why these functions would be greyed out?
