Adding watermark to image in PHP

Question

Basically, I have 2 php script. 1 of the php scripts is to display and the other 1 is the watermark function.

I use this PHP to display the image with watermark:

Answer 1

you can use this solution. here [ $SourceFile , $DestinationFile ] are Absolute Path of local directory. $imgUrl is HTTP based URL. Watermark will be placed at the top of the image.

here In this example, you have to give a path location where actual Image is stored. then Destination File will store that Watermark Image on that location.

Also, note that you have to give Public/Absolute Path for Font arial.ttf.

Solution is tested in Laravel 5.8.

function watermarkImage ($SourceFile, $WaterMarkText, $DestinationFile,$imgUrl) {
    list($width, $height) = getimagesize($SourceFile);
    $image_p = imagecreatetruecolor($width, $height);
    $image = imagecreatefromjpeg($SourceFile);
    imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width, $height, $width, $height);
    $black = imagecolorallocate($image_p, 255, 255, 255);
    $font = public_path('fonts/arial.ttf');
    $font_size = 8;
    imagettftext($image_p, $font_size, 0, 10, 20, $black,$font , $WaterMarkText);
    if ($DestinationFile <> '') {
        imagejpeg ($image_p, $DestinationFile, 100);
    } else {
        header('Content-Type: image/jpeg');
        imagejpeg($image_p, null, 100);
    };
    imagedestroy($image);
    imagedestroy($image_p);
    return  $imgUrl;
}

Answer 2

You can add and customize your output pictures with simple php codes like this that working with TopiLib: (You can add both image and text watermark, too)

<?php require '../topi.lib.min';
$panel = new \TopiLib\TopiPanel('png transparent', 9, 0, 0, 0);
$panel->createFromPNG($_GET['image'], true);
$img = new \TopiLib\TopiImage('watermark.png', 'transparent png');
$img->startX = 100;  //your custom start X position
$img->startY = 100;  //your custom start Y position
$panel->addImage($img);
$panel->render(); ?>