How can I get an offline PDF manual of my MikroTik router when only HTML manuals are provided?
https://mikrotik.com/product/hex_s#fndtn-downloads
No PDFs. Only HTML hyperlinks going to HTML pages hosted on their servers.
I want to save down PDF for the manuals for my new router, just like I do for all my hardware, so I don't need a working Internet connection to understand them.
My old Mikrotik router has PDFs.
If you go to the Mikrotik website you linked, scroll down a bit and open the User Manual:
On the new page press the three dots in the upper right and click "Export to PDF":