Downloading pages of text or whole books in Hathi is very straightforward and easy to accomplish. Note that most Full View books will have Download capabilities restricted to one page at a time for Guest users.
First, click into the Full view of the desired title. (Note that only titles with Full view available can be downloaded. A "Limited (search only)" title falls within copyright protection and cannot be accessed or downloaded.) Then click on Download on the left side of the page for the available download options:
Hathi makes it simple to embed Full view books into a webpage, either in a scroll or a flip view. In the Full view of any book, click on the Share link on the left side of the page:
Then click Embed this Item, which will bring up these presentation options and html code: