From 3230feaaae7584e71a2408fe5e7c605a8ab5ff60 Mon Sep 17 00:00:00 2001
From: Colin McMillen <colin@semicolin.games>
Date: Thu, 1 Jul 2021 17:19:15 -0400
Subject: [PATCH] add "latex tips" page

resurrected via:
https://web.archive.org/web/20070522115637/http://www.colinm.org/tips/latex
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 content/blog/20070522-latex-tips.md | 28 ++++++++++++++++++++++++++++
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 create mode 100644 content/blog/20070522-latex-tips.md

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+# LaTeX Tips
+
+*Posted: 2007-05-22*
+
+## Embedding fonts in PDFs
+
+To check whether fonts are embedded, use `pdffonts`, which is included with `xpdf`. `pdffonts` gives output that looks like this:
+
+```
+$ pdffonts paper.pdf
+name                                 type         emb sub uni object ID
+------------------------------------ ------------ --- --- --- ---------
+FHQIOS+NimbusRomNo9L-Medi            Type 1       yes yes no       6  0
+NEESMN+NimbusRomNo9L-Regu            Type 1       yes yes no       9  0
+PJQNOS+CMSY10                        Type 1       yes yes no      12  0
+```
+
+You want `emb` to be `yes` for all fonts (and possibly `sub` as well; also, all fonts should be Type 1, not Type 3). By default in Ubuntu, pdflatex should embed all fonts. Just in case, you can check `/etc/texmf/updmap.d/00updmap.cfg`, which should have a line like this:
+
+`pdftexDownloadBase14 true`
+
+If it's set to `false`, change it to `true`, then run `update-updmap` as root. Remake the PDF; if it still has non-embedded fonts, your figures are probably to blame. Check your PDF figures and make sure their fonts are embedded (using the `pdffonts` command). For anything that doesn't have embedded fonts, you can try the following magical invocation (all on one line):
+
+```gs -dSAFER -dNOPLATFONTS -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sPAPERSIZE=letter -dCompatibilityLevel=1.4 -dPDFSETTINGS=/printer -dCompatibilityLevel=1.4 -dMaxSubsetPct=100 -dSubsetFonts=true -dEmbedAllFonts=true -sOutputFile=figures/Mprime-new.pdf -f figures/Mprime.pdf```
+
+This creates a file `figures/Mprime-new.pdf` that is hopefully identical to the input file `figures/Mprime.pdf`, except that the fonts are embedded. Run `pdffonts` on it to check.
+
+Once all your figures are in PDF format, remake the paper again. Hopefully, all your fonts are now embedded --- check again with `pdffonts`.