This program has one fatal flaw... it does not have RULERS. Any user from the Architecture, Design, Planning, Interiors or Construction industries will NOT be able to use this program for anything other than letter-sized documents, like contracts, etc. You have no way of knowing the dimensions of a received drawing. I bought this program a couple years ago, as an alternative to Adobe Acrobat, and I have asked multiple times if they will ever add a RULER function and all I get is a "we'll look into it." Without that function, this is worthless.