What can Extract Tables from PDF

Hi All,
I have a bunch of PDF docs with tabular data in them which I need to extract to process and run calculations on.
Is there anything out in the world (preferablly free, open source) that is able to get tabluar data out of PDFs into a more readable format in bulk either natively integrated with an app or passively via command line or looping the process in code?
Can be any format really just as long as the tables are maintained.
Anything I've found so far is either a one-off (only does one pdf at a time) or does not maintain the table structure (only extracts simple, unstructured text)
Any ideas please post.

This is a forum to discuss the actual PDF format and not product recommendations.

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Hello
You may also try the following applescript script, which is a wrapper of rubycocoa script. It will ask you choose source pdf files and destination directory. Then it will scan text of each page of pdf files for the predefined pattern and save the page as new pdf file with the name as extracted by the pattern in the destination directory. Those pages which do not contain string matching the pattern are ignored. (Ignored pages, if any, are reported in the result of script.)
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Minimally tested under 10.6.8.
Hope this may help,
H
_main()
on _main()
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include OSX
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EOF"
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Regards
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Okay so I went ahead and actually added the text extraction functionality to my own C# application, since this was a requested feature by the client anyhow, which originally we were told to bypass if it wasn't "cut and dry", but it wasn't bad so I went ahead and gave the client the text extraction that they wanted. Decided I'd post the source code here for you. This returns the text from the entire document as a string.
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We are thinking about using a third party native Java library to do this (http://www.qoppa.com/pdffields/jpfindex.html). I was hoping we could use acrobat reader, since everyone has it!
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What can Extract Tables from PDF

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