Kiwi dude,
Thank you so much for the excellent advice that I have now saved. Suffice to say, I'm still none the wiser and it will take me a bit of time to sift what you have actually stated in the advice you have given. This is not pouring scorn on the way you have described your advice, it's just me
Once I have made sense of it all, I may very well post again to ask a bunch of dumb questions that you have probably already answered
I hope you will forgive me if that happens. That also goes for everybody else who has supplied help here.
Just to recap, the particular book I wanted to change in this case started off in PDF format. I simply changed it from that to e-Pub format to begin with.
The changing of the book cover in the Calibre library itself is not so much a problem now. It's the changing of the first page in the e-book viewer itself. Does your plug-in help in any way for this to be changed or have you already explained this in your earlier post? If you have, then I apologise and I will have to look a bit more closely at the post in more detail and then report back if necessary.
Please excuse me as I am fairly new to all this. Having said all that, I am willing to learn as I think e-books and Calibre are the greatest things since sliced bread.
Thanks
HB