This script lets you download books page-by-page from archive.org in the event that there is no PDF link. Any book with a <14 day loan period is like this, as you can see:
The script needs your login credentials to borrow the book, then it will run on its own using your session.
Do not use this program in an illegal manner. Thanks!
Searching for books instead of inputting id directly
GUI
Option to convert to pdf or epub instead of saving each page individually