And Adobe Acrobat is far more capable than notepad. But that doesn't change the fact that they are tools, not individuals, and thus do not have the legal authority or ability to sign contracts.
I could write dozen lines of bash that finds for PDFs, pastes an image into them and emails it to someone. That doesn't mean that bash can sign contracts.
I could write dozen lines of bash that finds for PDFs, pastes an image into them and emails it to someone. That doesn't mean that bash can sign contracts.