Using Truetype Fonts with MapServer

create a file called “fontset.txt”; the first item will be the font identifier for reference in your mapfiles, and the second item on each line will be the path to the truetype font file:

arial	/path/to/font/files/arial.ttf

reference the fontset.txt file at the beginning of a .map file like this:

MAP
	SIZE 800 600
	EXTENT -742509 3537635 708118 4538138
	IMAGECOLOR 153 179 204
	
	FONTSET fontset.txt

	IMAGETYPE PNG24 # - HUGE BUT LOOKS GOOD
	
	PROJECTION
		"proj=merc"
		"ellps=WGS84"
		"lat_0=34.24"
		"lon_0=-111.62"
	END

...

modify your LABEL section like this (8 is a point size):

LABEL
	TYPE truetype
	FONT "arial"
	SIZE 8
...