Is there a way to export just a single symbol from the font used by newtxmath with libertine option? Being be more specific, I would need both the italic and the upright Greek letters (in bold too) without loading the newtxmath package. For instance, this


produces that enter image description here How can I export these three characters (respectively italic, upright and bold)? I tried with something like


in the preamble, as suggested by @Ruixi Zhang and @Sebastiano and others; that is fantastic, but so I only get the Greek italic letters of the default option, which is not libertine! In newtxmath.sty there is something like DeclareMathSymbol{\tauup}{\mathord}{lettersA}{28}, but I don't know how to export it. Moreover, I tried to export them as .eps files, but that's not the same thing.

Thanks in advance!

  • If you want the letters from Libertine, load that font instead?
    – Davislor
    Apr 16, 2019 at 5:13
  • Would a solution based on unicode-math or mathspec work for you? Can you use LuaLaTeX or XeLaTeX?
    – Davislor
    Apr 16, 2019 at 5:14
  • No. I use pdfLaTeX
    – TFra6
    Apr 16, 2019 at 9:10
  • @TFra6 Thank you so much for mentioning me :-)
    – Sebastiano
    Apr 16, 2019 at 12:14

1 Answer 1


Original (with newtxmath and libertine option)




With the imported symbols


   <-6.3> s*[1] nxlmi035
   <6.3-8.6> s*[1] nxlmi037
   <8.6-> s*[1] nxlmi03
  <-6.3> s*[1] nxlbmi035
  <6.3-8.6> s*[1] nxlbmi037
  <8.6-> s*[1] nxlbmi03

   <-> s*[1] nxlmia
   <-> s*[1] nxlbmia






The output is the same.

enter image description here

Adjust the factor [1] in the font shape declarations to match the font you use. It's a magnification factor; using s*[0.9] reduces the font size at 90%.

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