Adobe Acrobat (Pro) DC is the successor of former Adobe Acrobat XI Pro. There is no need to repeat its feature details. Just at the requests of so many visitors, AppNee will continuously release, update Adobe Acrobat Pro DC Portable version in this post. For details please see the following "Edition Statement" part!
As Microsoft's partner, Foxit Software company has a number of award-winning products, especially its most popular Foxit PDF Reader for both free and commercial uses. And the Foxit PhantomPDF Business provides a centralized and complete PDF document solution specially for business/company users, and it has become a sensible alternative to Adobe Acrobat for an increasing number of commercial users.
For any PDF solutions that want to grab the market share from Adobe Acrobat, it has to start from the availability and usability. In this case, the performance of Bluebeam Revu makes users' eyes bright at the moment.
Nitro Pro (AKA: Nitro PDF Professional) is a versatile and fast PDF solution specially designed for business users. It is a combination of functions like PDF reading, editing, creating, commenting, optimizing, as well as the Office document formats conversion. It is one of the most user-friendly PDF solutions that can completely replace, direct challenge the expensive, bloated and slow Adobe Acrobat.