I believe you are asking wrong question and what you
really need is something else.
Maybe you need an ability to read 100 letters per minute using AI-generated digest. Text is not a rich multimedia file like jpg, there are no hidden dots or something.
Text is an API to the most cognitive parts of our cognition and there is no hidden astrology in the data as well. Text is supposed to be an omnipossible environment of senses and any progress in machine-readable semantics will lead to nothing except of even more advanced chat bots. Your question is like detecting my skin color and model of computer I typed this in based on the text of the comment you have already read.