PDF reader that actually reads to you.

Hi, I have a blackberry playbook, and I'm looking for an offline app, that can take a PDF on my playbook and read it to me while I'm driving.

I have to read a lot of material and this would save me a lot of time.

Repligo Reader has this function, but it needs to be sideloaded. There is also an app called PDF to Speech, which also needs to be sideloaded.