OpenType specification (OpenType 1.5)
The OpenType™ specification has been formatted in HTML, but may link to .PDF files.
OpenType specification version 1.5
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
- 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 and have been submitted for inclusion in ISO/IEC 14496-22, the “Open Font Format”. These changes are reflected in the Committee Draft of the second edition of the ISO/IEC 14496-22.
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OpenType specification