I've got a problem with Acrobat 10.1.12 on a Mid 2012 MacPro Quad-Core running OSX 10.9.5 (same on Late 2013 MacPro Six-Core)
When I open a PDF with Output Preview open and point an click on an object to measure it, Acrobat crashes. Same with more than 3 PDF open on the 2013 MacPro.
The only way to work around is to reopen Output Preview before clicking into the document, which isn't a proper solution with up to 150 PDF to check every day.
Things i've tried so far:
OSX and Acrobat (installed Plugin is PitStop Pro 11) clean install
clear the whole Suitcase to avoid font problems
I'm thankful for any suggestion.