You can create that cover from the book. But it has to be stored as a file named cover.jpg, in the folder, for it to show up in calibre.
And please note that there are some very severe limitations to what calibre can do with PDFs. It really isn't a good format for ebooks, especially if you need to convert or update them using calibre. Other tools may be better.
Last edited by Adoby; 10-09-2013 at 08:31 AM.
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