Watermark

<?php
require('rotation.php');

class PDF extends PDF_Rotate
{
function Header()
{
    //Put the watermark
    $this->SetFont('Arial','B',50);
    $this->SetTextColor(255,192,203);
    $this->RotatedText(35,190,'W a t e r m a r k   d e m o',45);
}

function RotatedText($x, $y, $txt, $angle)
{
    //Text rotated around its origin
    $this->Rotate($angle,$x,$y);
    $this->Text($x,$y,$txt);
    $this->Rotate(0);
}
}

$pdf=new PDF();
$pdf->AddPage();
$pdf->SetFont('Arial','',12);
$txt="FPDF is a PHP class which allows to generate PDF files with pure PHP, that is to say ".
    "without using the PDFlib library. F from FPDF stands for Free: you may use it for any ".
    "kind of usage and modify it to suit your needs.\n\n";
for($i=0;$i<25;$i++) 
    $pdf->MultiCell(0,5,$txt,0,'J');
$pdf->Output();
?>