(PECL gmagick >= Unknown)
GmagickDraw::setfontsize — Sets the font pointsize to use when annotating with text
public GmagickDraw::setfontsize ( float $pointsize ) : GmagickDraw
Sets the font pointsize to use when annotating with text.
pointsize
Text pointsize
The GmagickDraw object on success
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https://www.php.net/manual/en/gmagickdraw.setfontsize.php