Changes on EPUB OCF 3.2


What are changed made on EPUB Open Container Format (OCF) 3.2 specification?



EPUB Open Container Format (OCF) 3.2 specification has the following changes.

1. Encryption and Compression Order - The order of encryption and compression has been clarified. The new rules clarify that compression is not necessary when it is not beneficial to reducing the size of a resource.

2. New Compression element - A new Compression element has been added to the encryption.xml schema to indicate whether a resource has been compressed and provide its original byte size.


Hello-3.2.epub - EPUB 3.2 Simple Demonstration

Changes on EPUB Content Documents 3.2

Introduction of EPUB 3.2 Specification

⇑⇑ EPUB Tutorials

2022-04-21, 239👍, 0💬