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EPUBCheck · Package document (OPF)

OPF-100

Updated:

EPUBCheck OPF-100 is a usage message: “The "…" property only applies to pre-paginated content.” A property that only applies to fixed-layout (pre-paginated) content is set on reflowable content.

The official message

The "%1$s" property only applies to pre-paginated content.

Default severity
Usage. Informative only and hidden by default: it appears when EPUBCheck runs with -u (--usage). It does not make the EPUB invalid.
EPUBCheck version
5.4.0

%1$s, %2$s… are filled in with the file, value or element EPUBCheck found.

Typical causes

How to fix it

  • Remove the property EPUBCheck names, or mark the content as pre-paginated if it really is fixed layout.

Terms used here

Other OPF messages

  • OPF-099 The manifest must not list the package document.
  • OPF-097 Resource "…" is listed in the manifest, but no reference to it was found in content documents.
  • OPF-096 Non-linear content must be reachable, but found no hyperlink to "…".
  • OPF-093 The "media-type" attribute is required for linked resources located in the EPUB container
  • OPF-092 Language tag "…" is not well-formed: …
  • OPF-091 The item href URL must not have a fragment identifier.

Message text and severity from EPUBCheck 5.4.0 (W3C, BSD-3-Clause). Explanation by EPUBLab.

FAQ

What does EPUBCheck OPF-100 mean?

EPUBCheck OPF-100 is a usage message: “The "…" property only applies to pre-paginated content.” A property that only applies to fixed-layout (pre-paginated) content is set on reflowable content.

Is OPF-100 an error?

OPF-100 is reported as usage by default. Informative only and hidden by default: it appears when EPUBCheck runs with -u (--usage). It does not make the EPUB invalid.