I don't know about positional information, but I've had good luck with PDFBox for text extraction. And by good luck I mean as good as it gets considering I am u

I don't know about positional information, but I've had good luck with PDFBox for text extraction. And by good luck I mean as good as it gets considering I am using something for free and working with the PDF standard. This was a system used in production but had several checks and fallback mechanisms because the process was unreliable.