What is the difference was between CommandLine and SDK versions of PDF to Text?

[Support]

Q: I was wondering what the difference was between CommandLine and SDK
versions of PDF2Text (http://www.pdftron.com/pdf2text/)?

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A: The SDK is more suitable for integration with existing applications
and multi-threaded systems. Command-Line is suitable to scripting,
batch processing and simple shell based systems.

PDFTron also offers PDFNet SDK (http://www.pdftron.com/pdfnet/) which
includes all functionality of PDF2Text plus much more (http://
www.pdftron.com/pdfnet/features.html). The relevant sample project for
use with PDFNet SDK would be the TextExtract sample (http://
www.pdftron.com/pdfnet/samplecode.html#TextExtract).