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+.\" ======================================================================
+.\"
+.IX Title "OT2KPX 1"
+.TH OT2KPX 1 "fontools" "2007-04-02" "fontools"
+.UC
+.SH "NAME"
+ot2kpx \- extract kerning information from an OpenType font
+.SH "SYNOPSIS"
+.IX Header "SYNOPSIS"
+ot2kpx \fIfont\fR
+.SH "DESCRIPTION"
+.IX Header "DESCRIPTION"
+In many OpenType fonts, most kerning data is stored in the `\s-1GPOS\s0' table rather
+than in the `kern' table. \fBot2kpx\fR extracts the kerning data from both tables
+and prints it (in \fIafm\fR format) to \f(CW\*(C`stdout\*(C'\fR.
+.SH "RESTRICTIONS"
+.IX Header "RESTRICTIONS"
+.Ip "\fB-\fR" 2
+.IX Item "-"
+\&\fBot2kpx\fR prints data from all features named `kern', regardless of script
+and language. Maybe it would be better to let the user choose a script
+and language (defaulting to `latn' and `\s-1DFLT\s0') and print only the kerning
+data from features associated with these values.
+.Ip "\fB-\fR" 2
+.IX Item "-"
+\&\fBot2kpx\fR uses only the XAdvance data associated with the first glyph in any
+kerning pair; all other data in the ValueRecords is ignored. I'm not sure
+whether this is The Right Thing to Do; however, almost always there is
+no other data, so this approach gives correct results (in fact, the only
+font I know of that does contain data other than XAdvance is Linotype
+Palatino; this also contains XAdvDevice data, which is used (according to
+the OpenType specification) to \fI`define subtle, device-dependent adjustments
+at specific font sizes or device resolutions'\fR. Since there is no way to
+express such adjustments in \fIafm\fR format, ignoring them seems to be the
+only option.)
+.SH "SEE ALSO"
+.IX Header "SEE ALSO"
+\&\fIafm2afm\fR, \fIautoinst\fR, \fIcmap2enc\fR, \fIfont2afm\fR, \fIpfm2kpx\fR.
+.SH "AUTHOR"
+.IX Header "AUTHOR"
+Marc Penninga <marc@penninga.info>
+.SH "HISTORY"
+.IX Header "HISTORY"
+.Ip "\fI2005\-01\-10\fR" 12
+.IX Item "2005-01-10"
+First version
+.Ip "\fI2005\-02\-18\fR" 12
+.IX Item "2005-02-18"
+Rewrote some of the code
+.Ip "\fI2005\-03\-08\fR" 12
+.IX Item "2005-03-08"
+Input files searched via \fBkpsewhich\fR (where available)
+.Ip "\fI2005\-03\-15\fR" 12
+.IX Item "2005-03-15"
+Input files searched using \fBkpsewhich\fR or \fBfindtexmf\fR
+.Ip "\fI2005\-03\-21\fR" 12
+.IX Item "2005-03-21"
+Test if \s-1GPOS\s0 table is present before trying to read it
+.Ip "\fI2005\-04\-29\fR" 12
+.IX Item "2005-04-29"
+Improved the documentation
+.Ip "\fI2005\-05\-25\fR" 12
+.IX Item "2005-05-25"
+Changed warning that's given when the font contains no \s-1GPOS\s0 table, to an
+informational message.
+.Ip "\fI2005\-07\-29\fR" 12
+.IX Item "2005-07-29"
+A few updates to the documentation