On Sat, 09 Mar 2019 15:29:11 -0700 "Nelson H. F. Beebe"
<beebe(a)math.utah.edu> wrote:
I therefore make this posting in the hope that someone else might be
encouraged to tackle similar document improvements in the bitsavers
archives. Although it takes a bit of experimentation, with the
exception of the OCR conversion, the entire operation can be done with
free software on pretty much any modern computing platform, thanks to
the portability of the needed software.
How about tesseract for OCR?
https://github.com/tesseract-ocr/tesseract