The command line application is an example of usage of the Java library.
The library is based on pdfbox library and works by looking for the layout of each selected pdf page, and looking for table structure patterns.
After calling the library (passing the pdf filename, and the page range), the result is a List<PdfTextElement>.
PdfTextElement is an interface that has two implementations.
* A basic text (outside the tables)
* And PdfTextTabulaElement, for table structures.
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