I remember those days when one of the Adobe softwares would ask for an update almost daily, needing more attention than a cat. While that's annoying, it's even worse to not be able to open pdf files at all.
PDF Pro takes care of that for your phone. Don't underestimate that 'advanced' on its name, it really makes the whole process of opening and reading pdf files much smoother, and comes with a whole bunch of useful functions, like being able to wirelessly print your files. Today it drops from $2.99 to FREE!