My school uses pdf versions of textbooks to project onto the screen during lessons. For worksheets, there is the option of either revealing or hiding the answer by clicking in the respective blank. However, I find that when I try doing this on my mac at home, the answers do not come on. Is there anyway to fix this? I would like the ability to show this on my ipad, so I don't have to keep alternating between 2 pdfs, 1 with solutions and the other without. Thank you for your help, all.