# EPUBCheck OPF-100: The … property only applies to…

Source: https://epublab.com/epubcheck/opf-100/ (updated 2026-11-03)

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.

- Official message (EPUBCheck 5.4.0): The "%1$s" property only applies to pre-paginated content.
- Default severity: Usage

## Typical causes

- Fixed-layout settings copied into a reflowable book's package document.

## How to fix it

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

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