Whilst I think that a hard copy or pdf of the manual is good, especially for doing text searches, whatever you produce will never be as up to date as the help on the Alibre website. They have moved from an embedded help system to online in order that they do have a single, maintainable resource. IMHO, making copies of the web resource will be more or less out of date by the time you've manually compiled it in to some other format !
How much time do you intend repeating this task every release/minor release?
The way to go, is to request that Alibre enhance the help by having a pdf download option (dynamically created on their server) of the whole help document, that is targeted at just your version/level of Alibre to 'declutter' the stuff your version can't do!
Driving change for the better using the system that is already in place is way better than trying to play catch up using some homegrown solution.
I'm sure, from memory, that the original intent of the new web based system was also to have links to videos and tutorials, etc ... you can't replicate that with just pdfs.
