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Email[email protected]Compatibility reports
Include the browser, operating system, EPUB version, tool used, and what happened. Do not attach confidential or copyrighted ebooks you cannot share.
Privacy and safety
Ask about browser-local file handling, blocked remote resources, analytics, memory-only sessions, or EPUB content isolation.
Content and improvements
Suggest documentation corrections, public test cases, missing metadata patterns, or workflow improvements that fit the EPUB-only product scope.