Quote:
Originally Posted by Jellby
I have never seen an ePUB with DRM, but I understand they have each file encrypted separately in the zip container. It could then be very well the case that the OPF file (which contains the metadata) is not encrypted, and only the real book content is, then it should be possible to edit the metadata without affecting the DRM at all.
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According to the
OCF, the OPF file should never be encrypted.
Quote:
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Originally Posted by OCF spec
The following files MUST never be encrypted (regardless of whether default or specific encryption is requested):
- mimetype
- META-INF/container.xml
- META-INF/manifest.xml
- META-INF/metadata.xml
- META-INF/signatures.xml
- META-INF/encryption.xml
- META-INF/rights.xml
- OEBPS rootfile (the OEBPS Package file)
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