Ubuntu – PDF font falls back to DejaVu Sans, need a monospace replacement


I have a PDF that features code fragments and it references Courier Std (which is not available on my system and I am not planning to buy it either). The problem is that in the Evince Document Viewer (3.18.2) this font is replaced by DejaVu Sans, which is not a monospace font and code that is note set in a monospace font is just hard to read. (the idiosyncratic kerning adjustment just makes it even harder).

I have installed the msttcorefonts in the hope that it might help, it does not. How can replace DejaVu Sans with a monospace font?

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UPDATE: If I load the PDF in Firefox, the font gets correctly replaced by a monospace font.

Best Answer

  • This issue should be patched in the next version of Ubuntu (21.04).┬áThere is also an upstream fontconfig merge request #128 pending.

    In the meantime, the following steps should help address some PDF font substitution problems:

    • Install fonts-urw-base35.

    • Create the file ~/.config/fontconfig/conf.d/10-pdf-aliases.conf with the following contents:

        <?xml version="1.0"?>
        <!DOCTYPE fontconfig SYSTEM "/etc/fonts/conf.d/fonts.dtd">
        <alias binding="same">

      Then run fc-cache (may not be necessary).

      You can add other font aliases to the file as needed.

    See also: