PHP Image and Text Watermark

We received many tutorial requests from 9lessons readers that asked how to generate watermark image using PHP. In this post Arun Kumar Sekar coded two functions such as watermark_text() and watermark_image() to generate text and images watermarks on images. Integrate this to your web project upload image system and produce copyright photos.

Download Script     Text Live Demo     Image Live Demo

Watermark with Text - watermark_text()
Text watermark function, here you have to configure font source, size and text. live demo

$font_path = "GILSANUB.TTF"; // Font file
$font_size = 30; // in pixcels
$water_mark_text_2 = "9lessons"; // Watermark Text

function watermark_text($oldimage_name, $new_image_name)
{
global $font_path, $font_size, $water_mark_text_2;
list($owidth,$oheight) = getimagesize($oldimage_name);
$width = $height = 300;
$image = imagecreatetruecolor($width, $height);
$image_src = imagecreatefromjpeg($oldimage_name);
imagecopyresampled($image, $image_src, 0, 0, 0, 0, $width, $height, $owidth, $oheight);
$blue = imagecolorallocate($image, 79, 166, 185);
imagettftext($image, $font_size, 0, 68, 190, $blue, $font_path, $water_mark_text_2);
imagejpeg($image, $new_image_name, 100);
imagedestroy($image);
unlink($oldimage_name);
return true;
}

Watermark with Image - watermark_image()
Image watermark function, here you have to configure image water mark source. live demo

$image_path = "9lesson.png";

function watermark_image($oldimage_name, $new_image_name)
/{
global $image_path;
list($owidth,$oheight) = getimagesize($oldimage_name);
$width = $height = 300;
$im = imagecreatetruecolor($width, $height);
$img_src = imagecreatefromjpeg($oldimage_name);
imagecopyresampled($im, $img_src, 0, 0, 0, 0, $width, $height, $owidth, $oheight);
$watermark = imagecreatefrompng($image_path);
list($w_width, $w_height) = getimagesize($image_path);
$pos_x = $width - $w_width;
$pos_y = $height - $w_height;
imagecopy($im, $watermark, $pos_x, $pos_y, 0, 0, $w_width, $w_height);
imagejpeg($im, $new_image_name, 100);
imagedestroy($im);
unlink($oldimage_name);
return true;
}

Image Form
Contains simple PHP and HTML form submit code. Here HTML form sending post request.

$demo_image= "";
if(isset($_POST['createmark']) and $_POST['createmark'] == "Submit")
{
$path = "uploads/";
$valid_formats = array("jpg", "bmp","jpeg");
$name = $_FILES['imgfile']['name'];
if(strlen($name))
{
list($txt, $ext) = explode(".", $name);
if(in_array($ext,$valid_formats) && $_FILES['imgfile']['size'] <= 256*1024)
{
$upload_status = move_uploaded_file($_FILES['imgfile']['tmp_name'], $path.$_FILES['imgfile']['name']);
if($upload_status){
$new_name = $path.time().".jpg";
// Here you have to user functins watermark_text or watermark_image
if(watermark_text($path.$_FILES['imgfile']['name'], $new_name))
$demo_image = $new_name;
}
}
else
$msg="File size Max 256 KB or Invalid file format.";
}
}
?>
// HTML Code

Upload Image
Image :file" name="imgfile" />

submit" name="createmark" value="Submit" />

if(!empty($demo_image))
echo '" />';
?>