I checked but the name of the pictures are quite long and is a combination of
characters and numbers. Thanks for the idea though.

I, in part, understand that people try to prevent offline browsing but for me
I do not always have an internet connection so this is a usefull tool (if it
works) to keep reading when I am traveling. Most of these comics have around
100 pages so it is a drag to do it manually per page.

I browsed the internet and it seems that more people encounter this issue and
none have found a viable solution nor software package that does the job. 

Seems I have found my waterloo :-(