How can I add multiple formats (without converting) and have Calibre see them?
I just got an update on an O'Reilly book which allowed me to download an epub, a mobi and a PDF. I can use all there in different situations, and I would like to simply add all formats without converting, drop them into the book's folder and have them recognized by Calibre, but there doesn't seem to be any easy way to do this.
Suggestions? or should this be an RFE?
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