Convert Online Book to PDF

I need assistance in downloading a book from a website and converting it into a PDF file.

Details:
- The book is currently in another digital format and is accessible online.
- It is divided into multiple sections or chapters.
- I require the final PDF to be just plain text without any specific formatting, such as bookmarks or headers/footers.

Ideal skills for this project include:
- Proficiency in file conversion
- Attention to detail in maintaining the integrity of the text
- Ability to work with various digital formats.

Experience with similar projects would be highly beneficial.