Acrobat Documents ONLINE - so if I have 200 PDF scanned and with no names, just dates, so I don't know what they are until I click each one, large previews would come in handy at that point, and then, I click on it to open the PDF, then go, oh I see, no, that's not the one, and I'm somewhere in the middle of 200, say around the 98th PDF, and close the opened PDF it takes me back... TO THE TOP. Now I have to look and scroll down to find my last position. That's bad. BAD.