How do I remove pages from an ePub file? was closed as off topic.
The only reason shown is
This question does not appear to be about Ebooks, within the scope defined in the help center.
Why is it off topic the question to me is how to edit an eBook removing the first and last page. Surely that is on topic.
One comment is
This question appears to be off-topic because it is about activity of questionable legality.
Why is this of dubious legality? and where? In many places this is legal and for many books it is legal. This is much more legal than removing DRM which is definitely legal in some places. And asking about DRM is allowed on other SE sites see Jeff Atwood's answer here also other DRM questions on meta stack exchange here and Joel Spolsky's answer here