Install fonts-lmodern by entering the following commands in the terminal:
sudo apt update sudo apt install fonts-lmodern
Description:
OpenType fonts based on Computer Modern
The Latin Modern fonts, also known as "lm fonts", are a set of scalable fonts in PostScript Type 1 and OpenType formats. They are based on the PostScript Type 1 version of the Computer Modern fonts and contain many additional characters (mostly accented ones). . This package provides the OpenType variant of these fonts. For support for TeX and Type 1 (PostScript) fonts, see the lmodern package. . The Latin Modern fonts were generated using MetaType1, a program based on MetaPost for generating PostScript Type 1 fonts (ftp://bop.eps.gda.pl/pub/metatype1/). Their size is reasonable and they are usually considered to be of good quality (compared to cm-super, for instance; however, cm-super contains font families that have no equivalent in this package; additionally, there are character sets that are supported by cm-super and not by the Latin Modern fonts).
Homepage: http://www.gust.org.pl/projects/e-foundry/latin-modern/
Version: 2.004.5-3
Section: fonts