A quick and dirty downloader for Cengage textbooks

Notes:

• This utility will only download the first "eTextbook" that shows up in the dashboard.
• PRs to help streamline the download process welcome!
• Chrome/Chromium is required for Puppeteer.

Steps:

1. npm install
2. Create .env and define EMAIL, PASSWORD, and EBOOK_BASE_URL
   • note: you can get EBOOK_BASE_URL by navigating to your textbook from Cengage, and then opening the textbook iframe url in a new tab. Copy everything before content/{[insert page].html}
   • With Firefox, you can right click somewhere within the textbook, then in the context menu click on This Frame > Open Frame In New Tab
3. run index.js. This will create a pdf file for each page in the textbook within download/. If the download is interrupted, you should be able to continue by running it again.
4. delete all empty files within download/. If you have find installed you can just run find . -size 0 -delete.
5. run merge-pdf.js, which should create merged.pdf.
6. any extra processing (deleting metadata, lineralizing, etc.)