LaTeX Font Warning: Font shape `OT1/cmr/m/n' in size <11.5> not available (Font) size <12> substituted on input line ...There will also be a warning like:
LaTeX Font Warning: Size substitutions with differences (Font) up to 0.5pt have occurred.after LaTeX has encountered
\
end{document}
.
The message tells you that you’ve chosen a font size that is not in
LaTeX’s list of “allowed” sizes for this font; LaTeX has
chosen the nearest font size it knows is allowed. In fact, you can
tell LaTeX to allow any size: the restrictions come from the
days when only bitmap fonts were available, and they have never
applied to fonts that come in scaleable form in the first place.
Nowadays, most of the fonts that were once bitmap-only are also
available in scaleable (Adobe Type 1) form. If your installation uses
scaleable versions of the Computer Modern or European Computer Modern
(EC) fonts, you can tell LaTeX to remove the restrictions;
use the type1cm or type1ec package as appropriate.
If the combination of font shape and series isn’t available, LaTeX
will usually have been told of a fall-back combination that may be
used, and will select that:
LaTeX Font Warning: Font shape `OT1/cmr/bx/sc' undefined (Font) using `OT1/cmr/bx/n' instead on input line 0.Substitutions may also be “silent”; in this case, there is no more than an “information” message in the log file. For example, if you specify an encoding for which there is no version in the current font family, the ‘default family for the encoding’ is selected. This happens, for example, if you use command
\
textbullet
, which is
normally taken from the maths symbols font, which is in OMS
encoding. My test log contained:
LaTeX Font Info: Font shape `OMS/cmr/m/n' in size <10> not available (Font) Font shape `OMS/cmsy/m/n' tried instead on input line ...In summary, these messages are not so much error messages, as information messages, that tell you what LaTeX has made of your text. You should check what the messages say, but you will ordinarily not be surprised at their content.
This question on the Web: http://www.tex.ac.uk/cgi-bin/texfaq2html?label=fontunavail