The Greatest American Lawyer recently suggested a viable alternative to Adobe Acrobat: Nitro PDF. Most Acrobat alternatives do nothing more than simply create PDFs. In my mind, that is not the purpose of Adobe Acrobat. It has many more features that allow you to comment on or otherwise handle your PDF documents. According to GAL, Nitro PDF includes these features:

You need to do more than read PDF documents.  You need to be able to engage in mark-up, editing, commenting, and creating PDF documents.  I have been using both Nitro and Adobe products for years.  I have always been shocked at how good Nitro is at mimicking the Adobe Standard functionality.

I have not tried Nitro PDF before, but it sounds like they have the right idea here. If you are looking for a full featured PDF program and don’t want to buy Acrobat, now might be the time to check out Nitro PDF. The regular price is $99. However, Nitro PDF has a Christmas special that is valid unit December 19. The special pricing is $49.50.

As GAL noted in his post, even if you already have a full version of Acrobat, Nitro makes a good option to give your staff full PDF functionality without the cost of Acrobat.