… other HTML files for the remaining chapters … A typical OCF is a zip file that might look like: Note that the idpf references are an archive of the site. The informational documents are also quite useful in understanding the standard's intent and content. In particular check the version 2.01 OPS and OPF specifications and the version 1.01 OCF specifications. The IDPF specification page contains the specifications for this format. “ MIME media types” provide a standard methodology for specifying the content type of objects. Mime Type: Multipurpose Internet Mail Extensions ( RFC 2045). An ePub reader should be capable of reading the content in its compressed format. The rest of the data in the file should be compressed. It has special build requirements by including an uncompressed mime type file as the first entry in the container. This container is generally a zip file but the extension has been renamed to. For this reason the files are collected into a container for easy dissemination and use. The intent of ePub is to serve both as a source file format and an end user format. The Open eBook Publication Structure or ' OEB', originally produced in 1999, is the precursor to OPS." '.epub' allows publishers to produce and send a single digital publication file through distribution and offers consumers interoperability between software/hardware for unencrypted reflowable digital books and other publications. '.epub' is composed of three open standards, the Open Publication Structure ( OPS), Open Packaging Format ( OPF) and Open Container Format ( OCF), produced by the IDPF. "'.epub' is the file extension of an XML format for reflowable digital books and publications. 5 ePub Creation and Manipulation software.
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