Problems with comment windows
I have to highlight many words, sentences in PDFs I work with. Usually, I only have to do a right click on a windows and choose « Delete » to delete it. I don't know what happened but I still can highlight, but the « Delete » function has disappeared so I can't delete anything anymore. That's a big problem for me. I tried to rebooth my computer, I tried to find updates (no updates), I tried to repair the installation. It still doesn't work. Any a ideas how to fix it? Adobe Acrobat Pro DC 2015 for Windows (PC). I have Windows 7.
I just remembered! Not only can't I delete comment windows, but I can't change window color and I can't write in window either. Once I highlight something, I can't do anything but CTRL Z.
Thanks!