epubpreflight is a tool for checking ePub files. It does not do validation, that is the role of the epubcheck tool. The epubpreflight tool is intended to check the things that are not mentioned in the EPUB spec, but that could be issues in one environment or another. The things that epubpreflight currently gives errors for are: * Content files that are empty. * Content files that are over 300KB. * Image files that are empty. * Image files that are over 10MB. It doesn't yet check the stylesheets.
Binary packages can be installed with the high-level tool pkgin (which can be installed with pkg_add) or pkg_add(1) (installed by default). The NetBSD packages collection is also designed to permit easy installation from source.
The pkg_admin audit command locates any installed package which has been mentioned in security advisories as having vulnerabilities.
Please note the vulnerabilities database might not be fully accurate, and not every bug is exploitable with every configuration.
Problem reports, updates or suggestions for this package should be reported with send-pr.