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section about zipping
* .opf: list of all resources, this keeps the "book" together. See also [http://www.idpf.org/epub/20/spec/OPF_2.0.1_draft.htm OPF specs].
* .ncx: table of contents
= Compressing the structure =
The file structure outlined above gets packaged into a ZIP archive with the .epub extension.
* <tt>mimetype</tt> must be the first directory entry of the archive.
* You must not use "extra file attributes", e.g. from macOS (AKA resource forks) or NTFS; use the X parameter of zip.
* You don’t want some other lurking files like macOS’s <tt>.DS_Store</tt> directory information or PDF images; exclude them from recursive packaging.
EPUB=minimal.epub
zip -u9X $EPUB mimetype
zip -u9X $EPUB META-INF/container.xml
zip -u9rX $EPUB OEBPS -x OEBPS/.DS_Store OEBPS/Text/.DS_Store OEBPS/Images/.DS_Store "*/.DS_Store" "OEBPS/Images/*.pdf"
= TODO =
