The default font size for labels and titles in gnuplot looks a little small with most terminals. For example, the labels can be hard to read from the back rows of an auditorium during a presentation. We now show how to adjust the font size, and how to select the font for labels and titles.
Most terminals accept a font and size specification in the
set terminal command. To find out about the terminal you are using, just type
help set term terminal, substituting the name of the terminal. For example, if you are using the PostScript terminal, typing
help set term postscript provides a wealth of information on all ...