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1995-03-15
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<H2><A ID="SECTION00051000000000000000">
Font definition files</A>
</H2><FONT SIZE="+4"><I>
The description of how L<SUP><SMALL>A</SMALL></SUP>T<SMALL>E</SMALL>X<#499#><#499#> font attributes are turned into T<SMALL>E</SMALL>X<#500#><#500#>
fonts is usually kept in a <B>font definition</B> (|.fd|) file. The
|.fd| file for family <#502#>family<#502#> in encoding <#503#>encoding<#503#> is called
|;SPMlt;ENC;SPMgt;;SPMlt;family;SPMgt;.fd|, for example |OT1cmr.fd| for Computer Modern Roman
or |T1ptm.fd| for Adobe Times.
Whenever L<SUP><SMALL>A</SMALL></SUP>T<SMALL>E</SMALL>X<#504#><#504#> encounters an encoding/family combination that it
does not know (e.g.~if the document designer says
|<#505#>ptm<#505#>|) then L<SUP><SMALL>A</SMALL></SUP>T<SMALL>E</SMALL>X<#506#><#506#> attempts to load the
appropriate |.fd| file. ``Not known'' means: there was no
| | declaration issued for this encoding/family
combination.
The declarations in the |.fd| file are responsible for telling
L<SUP><SMALL>A</SMALL></SUP>T<SMALL>E</SMALL>X<#507#><#507#> how to load fonts for that encoding/family combination. If
the |.fd| file could not be found, a warning is issued and font
substitutions are made.
</I></FONT>