I tried using the Python OCR SDK with a PNG image file like below:
$ python3 process.py capture.png result.txt
and it worked, normal text was found in result.txt
however, when using a static PDF file, the OCR SDK returns unreadable binary into the result.txt file. I used this command string:
$ python3 process.py -pdf test.pdf result.txt
I can't find any help in the documentation so I'm guessing I'm using the tool wrong here. I will attach the result.txt from the PDF command.