Quote:
Originally Posted by slm
I don't know if this is still true but originally, kepub supplied by Kobo had no DRM on it, while all Kobo epubs did. Presumably, these saved Kobo money since they didn't have to pay the per-file fee for the kepub.
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Odd. As far as I am aware, Kobo used their proprietary DRM scheme on kepubs from day 1. It had the advantage that they did not have to pay Adobe every time a kepub was downloaded but I suspect the reason for creating their own DRM scheme was more that Adobe did not support the features of epub3 needed for the Japanese market and Kobo did not want to re-invent ADEPT.
I also seem to remember purchasing kepubs (Kobo epub) and plain epubs where either both or neither had DRM. I do not remember ever purchasing an ebook from Kobo where only the kepub or the epub had DRM.