v0.5.2

The retained Adobe PDF 1.7 errata exposed a narrow outline correction: a root
whose top-level items are all explicitly closed must omit Count. The core now
does so while preserving item links, hidden descendants and signed item counts.

The four supplied Adobe originals are preserved byte-for-byte, with a catalogue
of identities and fingerprints. Independent validation checks their pages and
the portfolio's four embedded PDFs, including three exact duplicates of the
separate originals.

The reference guide
explains the documents, edition differences and the limits of Redact annotation
construction. The originals are downloadable from the documentation and excluded
from Composer distribution archives. This intake does not claim complete errata
coverage or destructive redaction support.

PHP 8.3 remains the minimum version, with CI on PHP 8.3, 8.4 and 8.5. Optional
packages remain at their stable 0.1.3 releases. No new production dependency or
PDF 2.0 implementation is introduced.

See the changelog
and archival source catalogue.