Copy-paste it into the body of what? An ePub? It doesn't work like that. Use Sigil to insert it as an image, mark it as a cover, then convert the ePub to a Mobi or whatever.
300x300 is too small for a cover image. That's an outright thumbnail image, and a poor one at that, especially since it's a square image. There's no e-reader that has a square screen. Editing it in Paint.NET to fit a larger screen (~800x600) means that the quality will suffer. If I were you I would try and find a better source for the cover.
Last edited by DSpider; 02-05-2013 at 04:04 PM.
|