SetFont(string family [, string style [, float size]])
FPDF_FONTPATH (si es que ha sido definida)
include()
define('FPDF_FONTPATH','/home/www/font/');
require('fpdf.php');
familyCourier (fixed-width)
Helvetica o Arial (sinónimo; sans serif)
Times (serif)
Symbol (symbolic)
ZapfDingbats (symbolic)
styleB: bold
I: italic
U: underline
Symbol y ZapfDingbats.
size//Times regular 12
$pdf->SetFont('Times');
//Arial bold 14
$pdf->SetFont('Arial','B',14);
//elimina bold
$pdf->SetFont('');
//Times bold, italic y underlined 14
$pdf->SetFont('Times','BIU');