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Your EPUB Is Fine. Kobo Disagrees. Blame Adobe - André Klein Dot Net
(andreklein.net)
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this post was submitted on 27 Jun 2026
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I've used libgourou successfully many times in the past year to remove DRM using my ADE key.
I angrily started doing this for every book I buy after changing reading device to a newer Kobo, and discovering that all the download links for .acsm files that my book store provides will expire after two years. I.e. after those two years it's impossible to move them to a new device unless I remove DRM.
How do you get your ADE key?
Create an account with ADE then activate using
adept_activate -u "your.adobe.id@email.com" --output-dir ~/.adeptIIUC this eats up an activation (I think they allow at most five) so back up the contents of that directory. You should be able to bring it with you to other computers.