<?php
header('Content-Type: image/jpeg');
$width = 1280;
$height = 400;
$canvas = imagecreate($width, $height);

$black = imagecolorallocate($canvas, 0, 0, 0);
$font = './font-name.ttf';

$text  = \FaGD\PPersianRender::render('فارسی',true); //Reversed text for GD
imagettftext($canvas, 12, 0, 200, 200, $black, $font, "convert :" . $text);

imagejpeg($canvas);
// Clear Memory
imagedestroy($canvas);