Re: Accessible pdf
See: Free & Good OCR Software for Image Scanned PDFs
I include instructions in that message. I've used this software to OCR files hundreds of pages in length without any issue. It can take quite a while for book length material to complete being OCR-ed.
Brian - Windows 10 Home, 64-Bit, Version 1709, Build 16299 (dot level on request - it changes too often to keep in signature)
The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth.
~ Niels Bohr