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For example, the mu in \SI{1.55}{\micro\metre} looks really bad for some reason. For textcomp, \textmu looks the same.

doncherry
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cue
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    That's weird. Same problem here. I paste an example compiled with texlive. http://tinypic.com/r/2hekgsx/7 – Tomas Nov 04 '10 at 13:13
  • That is weird... If you had a list of all the symbols that look rasterised, that might help solve the problem? The maintainer of siunitx is on this site, so I expect a good answer soon... – Seamus Nov 04 '10 at 13:28
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    Install the cm-super fonts or use \usepackage{lmodern}. – Ulrike Fischer Nov 04 '10 at 14:07
  • @Ulrike: can you put that as an answer? – Willie Wong Nov 04 '10 at 14:09
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    I tried with texlive 2010 (MacTeX) and it looks fine. Here's the version of siunitx: {siunitx} {2010/07/15} {2.0n} – YuppieNetworking Nov 04 '10 at 14:53
  • @Yuppie, I second that. – Juan A. Navarro Nov 04 '10 at 15:17
  • Please detail which TeX system you are using: I never see this with a simple example document on any of the systems I have. – Joseph Wright Nov 04 '10 at 15:56
  • Also with texlive 2009 on linux I don't see any problems (the \mu is filling the screen!). The version of siunitx is 2009/09/21 v1.3a. – Hendrik Vogt Nov 04 '10 at 15:58
  • I'm using TeXnicCenter with MiKTex. My siunitx package date is 2010-09-21. I can confirm that what Ulrike Fischer suggested worked for me. The symbols that looked odd were usually the upright greek symbols. I used the lmodern package and everything looks fine now. – cue Nov 04 '10 at 16:35
  • The author of siunitx should be notified. This must be a bug. I have the last version – Tomas Nov 04 '10 at 17:42
  • Well, I am the author of siunitx, and on my system don't see this. Thus it is down to the fonts installed in your system (siunitx uses the same glyph \textmu symbol from textcomp, but in a private internal version.) As I said, on my system everything is included properly and scales nicely. – Joseph Wright Nov 04 '10 at 17:53
  • Just wanted to confirm that, as Joseph suggested, \textmu from the textcomp package also has a the same poor quality font if the lmodern package isn't used or the cm-super fonts are not installed. Changed title to include textcomp. – cue Nov 04 '10 at 18:21
  • @Joseph Wright: Sorry I accused you, I checked and you are right. The problem is in textcomp. My version is texlive 2010.19888 on Arch Linux – Tomas Nov 04 '10 at 18:35
  • @Ulrike Fischer could you write up your comment as an answer so we can get this question of the unanswered list? – Seamus Nov 06 '10 at 15:04

1 Answers1

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Turning Ulrike Fischer's comment into an answer: This happens because you are using the type 3 versions of the TS1 encoded fonts that are accessed via the textcomp package. There are 2 simple ways to resolve this.

  • Install the cm-super fonts, via whichever mechanism your TeX distribution allows (these fonts are very standard and should be available for every major TeX distribution, but since they are quite large they are not always installed by default).
  • Put \usepackage{lmodern} in the document preamble, to use the Latin Modern fonts.

Both of these options should fix the problem of using type 3 symbols, and should have only very minor effects on the rest of the document. The first option should only change the problematic glyphs; the second option will also cause very slight changes to the whole document (you may or may not view these as improvements, or you may not even notice since the difference is very subtle).

See Latin Modern vs cm-super? for some tips on the difference between lmodern and cm-super.

See Finding ‘8-bit’ Type 1 fonts on the UK TUG FAQ for some more background.

barbara beeton
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Lev Bishop
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    I'd been toying with posting Ulrike's comment as an answer also, but I thought she might return and do so herself :-) – Joseph Wright Nov 06 '10 at 15:52