If i buy the subscription for Pro DC, I understand I can use it on two computers, but only one at a time. If i have one computer with PDFs open in Pro DC...can I open PDFs at all with the other computer?  perhaps with the free Adobe Acrobat? or will i not be able to open PDFs at all until the other computer gets out of Pro DC? (I have two computers at home - one in my office and a laptop i use throughout the house.  I often leave PDFs open on the computer in my office and wondered if i'll still be able to open PDFs on the laptop, if the computer in my office opened the PDFs in Pro DC and Pro DC is also installed on the laptop) ... View more