Is it possible to save MacOS application user guides for offline reading?
https://support.apple.com/en-in/guide/automator/welcome/2.9/mac/10.14.5

This is the homepage of the web version of the guide (for my Mac). For your Mac, use open in Safari in Share menu that sits beside table of contents in menu bar of help guide.  You can either 


print it page by page in browser or in the Help guide.
or use some tools like wget (recursive 1) or curl (single shot1) to download all pages. 
or save the page in web archive or page source whichever suitable, using File -> Save as (command + s )


1: https://daniel.haxx.se/docs/curl-vs-wget.html