This method is used to render the page footer. It is automatically
called by AddPage() and Close() and should not be called directly by
the application. The implementation in FPDF is empty, so you have to
subclass it and override the method if you want a specific processing.
Example
class PDF extends FPDF { function Footer()
{ //Go to 1.5 cm from bottom
$this->SetY(-15);
//Select Arial italic 8
$this->SetFont('Arial','I',8);
//Print centered page number
$this->Cell(0,10,'Page
'.$this->PageNo(),0,0,'C'); } }