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					Originally Posted by DaleDe  It needs to be an image, generally not an SVG since you may want to show it separately in a description of the book. The image can certainly be text only if you wish.
 Dale
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 Thanks; I wasn't clear in what I was after.  I'm thinking about making a "space efficient" epub and not using any images (jpeg, png).  So for the cover page I was thinking that if it needs an image I could make an svg, and use its <text> and </text> tags and since it's all  text it should compress well.