codice:
define('FPDF_FONTPATH','font/');
require('fpdf.php');
$utente = "XXX";
$password = "XXXX";
$hostname = "XXXXXX";
$nome_database = "XXXXX";
$nome_tabella = "XXXX";
$nome_colonna = "XXXXX";

mysql_connect($hostname,$utente,$password);
mysql_select_db ($nome_database);

class PDF extends FPDF
{
function Header()
{
$this->Image('immagine.jpg',10,10,30);
$this->Ln(30);
}
}

$query = mysql_query("SELECT * FROM $nome_tabella");
$pdf=new PDF();
$pdf->AliasNbPages();
$pdf->AddPage();
$pdf->SetFont('Arial','',12);
$pdf->Ln();
while($risultato = mysql_fetch_array($query))
{
$pdf->Cell(100,8,$risultato[$nome_colonna],0,0,'L');
$pdf->Ln();
}
$pdf->Output();
Qui ti spiega tutto...

http://www.fpdf.org/it/doc/index.php