Sensible, practical advice, it seems to me.
Very thorough guide that covers both how and why you might want to do this. Most interesting, it links to a Python script for adding a Table of Contents to a PDF, which would be very handy indeed.
But shouldn't it be "digitising"?
"Meat traders came out in support of vegan activists who occupied Smithfield Market in London last night."
Happy to take your word for it, as The Times won't let me read without registering.
This is how you do this sort of thing.