Fantastic plug-in! I just finished upsizing a bunch of covers on some ebooks I'd purchased today, and found myself wondering just how many ebooks I had with covers of less than my preferred minimum size (which is only 500x700 pixels, so it's not like it's particularly vast by today's tablet screen sizes). Found a reference to this plug-in on a different thread, just ran it... I have over 500 books whose covers also need upsizing, OUCH!
But at least now I know
