I mean, a camera taking pictures of every page and enough man-hours of OCR duty could create an ebook if push came to shove.
I believe someone got their hands on a copy of one of the Harry Potter books (IIRC the last one) before release, took pictures of every page using their phone, and there was an unofficial ebook before release day via crowdsourced manual OCR.
EDIT: I assume for ebooks of sufficiently old print editions (AKA old enough there's not a text file of the book from the production process) they do more or less exactly what Quoth described
Last edited by binaryhermit; 11-08-2023 at 12:41 PM.
Reason: fixed part after EDIT
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