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diff --git a/Master/texmf-dist/doc/generic/FAQ-en/html/FAQ-checksum.html b/Master/texmf-dist/doc/generic/FAQ-en/html/FAQ-checksum.html new file mode 100644 index 00000000000..a41bdb014bb --- /dev/null +++ b/Master/texmf-dist/doc/generic/FAQ-en/html/FAQ-checksum.html @@ -0,0 +1,28 @@ +<head> +<title>UK TeX FAQ -- question label checksum</title> +</head><body> +<h3>Checksum mismatch in font</h3> +<p/>When Metafont generates a font it includes a checksum in the font bitmap +file, and in the font metrics file (TFM). (La)TeX includes +the checksum from the TFM file in the DVI file. +<p/>When <i>dvips</i> (or other DVI drivers) process a +DVI file, they compare checksums in the DVI file to +those in the bitmap fonts being used for character images. If the +checksums don’t match, it means the font metric file used by (La)TeX +was not generated from the same Metafont program that generated the +font. +<p/>This commonly occurs when you’re processing someone else’s DVI +file. +<p/>The fonts on your system may also be at fault: possibilities are that +the new TFM was not installed, or installed in a path after an +old TFM file, or that you have a personal cache of bitmaps from +an old version of the font. +<p/>In any case, look at the output – the chances are that it’s perfectly +OK, since metrics tend not to change, even when the bitmaps are +improved. (Indeed, many font designers — Knuth included — +maintain the metrics come what may.) +<p/>If the output <em>does</em> look bad, your only chance is to regenerate +things from scratch. Options include: flushing your bitmap cache, +rebuild the TFM file locally, and so on. +<p/><p>This question on the Web: <a href="http://www.tex.ac.uk/cgi-bin/texfaq2html?label=checksum">http://www.tex.ac.uk/cgi-bin/texfaq2html?label=checksum</a> +</body> |