For anyone who is dealing with sub-par OCR results or is not able to automate much manual work, you may also find some good ideas on improving OCR accuracy here:
https://www.bisok.com/how-to-get-better-ocr-accuracy/
The blog deals with one solution in particular, but I believe the examples could be applied to improving other solutions. I used some of the ideas to increase my software by about 22%. Hope this helps
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