Free Helvetica substitute fonts thumb|TeX Gyre Heros – an enhanced version of Nimbus Sans under the GUST Font License Nimbus Sans L, a version of URW's Nimbus Sans spaced to match the standard Linotype/PostScript version of Helvetica, was released under the GNU General Public License in 1996, and donated to the Ghostscript project to create a free PostScript alternative. It (or a derivative) is used by much open-source software such as R as a system font. TeX Gyre Heros – a derivative of Nimbus Sans L with enhanced letter forms and metrics – has been prepared for use in the TeX scientific document preparation software, and since 2009 general under the GUST font license.The TeX Gyre (TG) Collection of Fonts , accessed 2020-09-30. FreeSans is a free font descending from URW++ Nimbus Sans L, which in turn descends from Helvetica. It is one of free (GPL) fonts developed in GNU FreeFont project, first published in 2002.
Free Helvetica substitute fonts thumb|TeX Gyre Heros – an enhanced version of Nimbus Sans under the GUST Font License Nimbus Sans L a version of URW's Nimbus Sans spaced to match the standard Linotype/PostScript version of Helvetica was released under the GNU General Public License in 1996 and donated to the Ghostscript project to create a free PostScript alternative It (or a derivative) is used by much open-source software such as R as a system font TeX Gyre Heros – a derivative of Nimbus Sans L with enhanced letter forms and metrics – has been prepared for use in the TeX scientific document preparation software and since 2009 general under the GUST font licenseThe TeX Gyre (TG) Collection of Fonts  accessed 2020-09-30 FreeSans is a free font descending from URW++ Nimbus Sans L which in turn descends from Helvetica It is one of free (GPL) fonts developed in GNU FreeFont project first published in 2002