OpenType specification

The OpenType™ specification has been formatted in HTML, but may link to .PDF or document in Microsoft Word format.

OpenType specification version 1.6

• OpenType overview
• The OpenType font file
• Font file tables
• Recommendations

Appendices

• Advanced typographic extensions (OpenType Layout)
• OpenType Layout Common Table Formats
• OpenType Layout Tag Registry
• The WGL4.0 character set
• TrueType fundamentals
• The TrueType instruction set
• OpenType Mirroring Pairs List
• Adobe technical note #5176: “The Compact Font Format Specification.”
• Adobe technical note #5177: “Type 2 Charstring Format.”
• Specification changes log file

Updates to this specification are noted in the change log. The text of the specification is identical to the “Final Draft International Standard” version of ISO/IEC 14496-22 FDIS “Open Font Format” (second edition).

---

This page was last updated 6 April 2009.

© 2009 Microsoft Corporation. All rights reserved. Terms of use.

Comments to the MST group: how to contact us.