Register an Internet Archive account
Borrow the book
Prepare the URL
get indentifier XXXXX from https://archive.org/details/XXXXX navigate to https://archive.org/services/loans/loan/?action=media_url&identifier=XXXXX&format=pdf&redirect=1 get https://lending6.us.archive.org:8080/...... change https to http navigate to the http url Get .acsm file
Download and install Adobe Digital Edition
Open the ascm file from ADE
Open the download pdf file location from ADE
Drag the pdf file into Calibre for De-DRM (with Alf’s DeDRM Tools)