Quote:
Originally Posted by wzhsunn
Thank you for your reply .
Because I want to create a drmed epub book that opened by ibooks reports "drmed epub".
I have upload the epub file .
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Now if I have the epub file, I can rename test.peub to test.zip and then extract it and delete the META-INF/encryption.xml and again zip it and rename to sth.epub.
Now I can read that epub without DRM trouble. That means DRM is useless. Isn't it? How can I secure it more?