I need some help here. I have situation where I need to read pdf file and extract data from it and load them to database. For example PDF Tax form.

I need some help here.  I have situation where I need to read pdf file and extract data from it and load them to database. For example PDF Tax form.
I did figure out one way and that is use PDF feature to export form data to xml file. I can then parse it and post to database. Problem is I don't know how to automate it. Is there any info on calling PDF tool commands from outside pdf reader.

Thanks.