Programatically read of a PDF

I have created a form using Adobe LiveCycle Designer for capturing user input. This form will be distrubuted to end users who will open using Acrobat Reader, enter the values and save it.

My requirement is to read these PDFs programatically and extract the values out. I have a few of questions on this

1) Since I created the form using LiveCycle, should I use LiveCycle APIs to read the values

or

2) Should i use Acrobat Reader or Acrobat Pro APIs to read?