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Math characters in preview

1035 Views 3 Replies Latest reply: Feb 16, 2010 8:22 AM by Ryan Harne RSS
Plasma Brian Calculating status...
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Jan 23, 2010 9:13 AM
I've recently noticed that some math characters (most notably the nabla character) don't always show up correctly when I view a PDF file using preview. If I open the same file with Acrobat it shows up correctly. I am running 10.6.2 on my Intel-based iMac. I don't think I had this problem when I was running 10.5.x, but it's possible I just don't remember. Does anyone else have this problem or is there something I can try to do to fix it?
iMac 2.8 GHz Intel Core 2 Duo, Mac OS X (10.6.2)
  • Tom Gewecke Level 9 Level 9 (70,825 points)
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    Jan 23, 2010 10:24 AM (in response to Plasma Brian)
    I've recently noticed that some math characters (most notably the nabla character) don't always show up correctly when I view a PDF file using preview.


    What shows up in place of the ∇?

    Do you notice any difference depending on the source of the pdf? If you produce a pdf in OS X with ∇ in it, does Preview display it correctly?

    If you like, send me one of the pdf's which do not work right in preview (tom at bluesky dot org).
    iMac Intel/2C2D, eMac G4/700, Mac OS X (10.6), 10.5, 10.4, 10.3, 9.2
  • Tom Gewecke Level 9 Level 9 (70,825 points)
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    Jan 23, 2010 1:02 PM (in response to Plasma Brian)
    Thanks for the sample pdf. Preview behaves as you describe, but no idea what causes that. Adobe Reader seems to display it correctly, so that may be the easiest fix.
    iMac Intel/2C2D, eMac G4/700, Mac OS X (10.6), 10.5, 10.4, 10.3, 9.2
  • Ryan Harne Calculating status...
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    Feb 16, 2010 8:22 AM (in response to Tom Gewecke)
    Just as a note, when I upgraded to Snow Leopard recently, I noticed the same thing. It's not with all papers, but a handful end up with bad rendering of LaTeX math. It seems that installing Snow Leopard somehow messes up the TeX installation but only by a little. I re-installed LaTeX afterwards and it corrected some of the issues but not all. I've spent too long trying to figure out how to repair everything (after Snow Leopard, MATLAB began rendering LaTeX incorrectly in plots, which was also something I was trying to address by reinstalling the most recent LaTeX distribution) so I'm just going to do whatever possible to ignore these issues.

    If you find any correction or resolution to the maths rendering issue, please share.
    MacBook, Mac OS X (10.6.2)

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