Simplest way to generate PDF in Codeigniter...
download FPDF here and make sure your file fonts are ready,
create directory plugin at application derectory... like this. /application/plugins.
and move your fpdf.php that you have downloaded and font file to plugins directory that you have created,
then.. make this simply function at your controoler...
function create_pdf(){
define('FPDF_FONTPATH',APPPATH .'plugins/font/');
require(APPPATH .'plugins/fpdf.php');
$pdf = new FPDF('p','mm','A4');
$pdf -> AddPage();
$pdf -> setDisplayMode ('fullpage');
$pdf -> setFont ('times','B',20);
$pdf -> cell(200,30,"Title",0,1);
$pdf -> setFont ('times','B','20');
$pdf -> write (10,"Description");
$pdf -> output ('your_file_pdf.pdf','D');
}
Good luck...........