OpenType® Specification Version 1.9.1

Core specification

Errata

Appendices

OpenType 1.9.1 incorporates revisions in a preliminary working draft of the 5th edition of the ISO/IEC 14496-22 “Open Font Format” standard. Current editions and amendments of ISO/IEC 14496-22 are freely available for download from the ISO website.

Updates to this specification are noted in the change log.