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I have the same latex file on two Macs: one running 10.7 (Lion) and one 10.9 (Mavericks). Both Macs have the same latest versions of achemso, TeXShop etc. All the packages have been updated with TeX Live Utility so I assume that in terms of LaTeX packages, the two computers should give the same manuscript. In fact no. The TeX file compiled on OS 10.9 gives a PDF file that seems to be using Computer Modern fonts whereas on 10.7 the fonts look different. eg:

  • Title of the article: looks like Arial on Mac OS 10.7 and Arial Rounded on 10.9,
  • Text: looks like Times New Roman on 10.7 but Garamond on 10.9.

Does anyone know what's happening? How can I have the same fonts on 10.9 as on 10.7? I assume that what I get on 10.7 with achemso is what I should be getting because I get the same results as on 10.7 when I compiled my tex file on a Linux machine. Thanks

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    Welcome to TeX.sx. Can you make a minimal document that also shows the different outputs and post images of them? (You can easily capture a screen shot by using Command-Option-4 and then selecting a portion.) You don't have enough reputation to embed the images at the moment, so remove the ! from the markup and then a higher rep user can put it back in.
    – Alan Munn
    Nov 17, 2013 at 3:12

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If you are using the same version of achemso on the two systems then you should get the same fonts: add \listfiles to your input and look over the logs to find out if this is the case.

The reason for a font change between versions is that when I first wrote the class the ACS were using Times for their journals, so it seemed sensible to use mathptmx in the class file. However, since then the ACS have changed to a commercial alternative font, and at the same time there are various symbols that work poorly with mathptmx. As such, the best 'fix' seems to be to avoid doing any font setting at all. Thus more recent versions of achemso will use Computer Modern unless you deliberately set the font yourself.

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