How To Add Logo Watermark To Image in PHP Tutorial

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Adding watermark text or brand logo on images is a very interesting topic. Inside this article we will see the concept i.e How to add logo watermark to image in php. This concept you can use when you want to add your brand value to your copyright content. For example – Adding company name to any of your images, Adding company logo, etc.

This article will be step by step. Very super easy to learn and implement it in your project. PHP provides several functions by which we can work with image manipulation task. Functions are imagecreatefrompng(), imagesx(), imagesy(), imagecreatefromjpeg(), getimagesize(), imagecopy(), imagepng(), imagedestroy().

Before working with images related tasks, you should have these extensions enabled.

  • GD Extension
  • Imagick Extension

Learn More –

Let’s get started.

Create PHP Project

Go to your localhost directory.

Create a folder named as watermark-img. Create files inside it. Files are –

  • index.php -> Create this file. This will generate the image with watermark text on it.
  • company-logo.png -> Logo file which will be used as a brand as a watermark into other images.
  • watermark-php-text.png -> Put any image of your own, an Image file where we add watermark text.

Required PHP Extensions

While working with image related stuff in PHP, make sure your PHP version should have these two most common image processing libraries GD Library and Imagick extensions enabled.

Whether your system already contains these extensions or not you can verify like this –

  • Create info.php file at your localhost directory
  • <?php phpinfo(); ?> Add this code into info.php file.
  • Run this file into browser

You should see these information into php information page.

GD Extension Enabled

Imagick Extension Enabled

Application Programming

Open index.php file and write this code into it.

Use “.png” Image

<?php

header('content-type: image/png');
  
$sourceImage = 'watermark-php.png'; // Add watermark into this
$myWatermark = imagecreatefrompng('company-logo.png'); // brand logo
  
$watermarkWidth = imagesx($myWatermark);
$watermarkHeight = imagesy($myWatermark);
  
$image = imagecreatefrompng($sourceImage);
$imageSize = getimagesize($sourceImage);
  
$wmX = $imageSize[0] - $watermarkWidth - 20;
$wmY = $imageSize[1] - $watermarkHeight - 20;
  
imagecopy($image, $myWatermark, $wmX, $wmY, 0, 0, $watermarkWidth, $watermarkHeight);
  
/* 
-------- If you want to save image -------
imagepng($image, 'watermark_image_save.png'); 
*/
imagepng($image);
  
imagedestroy($image);
imagedestroy($myWatermark);

Use “.jpg” or “.jpeg” Image

In case if you have other image extensions like of .jpeg or .jpg then use this code for it.

<?php
  
header('content-type: image/jpeg');
  
$sourceImage = 'watermark-php.png'; // brand logo
$myWatermark = imagecreatefromjpeg('company-logo.png'); // Add watermark into this
  
$watermarkWidth = imagesx($myWatermark);
$watermarkHeight = imagesy($myWatermark);
  
$image = imagecreatefromjpeg($sourceImage);
$imageSize = getimagesize($sourceImage);
  
$wmX = $imageSize[0] - $watermarkWidth - 20;
$wmY = $imageSize[1] - $watermarkHeight - 20;
  
imagecopy($image, $myWatermark, $wmX, $wmY, 0, 0, $watermarkWidth, $watermarkHeight);
  
/* 
  
-------- If you want to save image -------
imagejpeg($image, 'watermark_image_save.jpg'); 
*/
imagejpeg($image);
  
imagedestroy($image);
imagedestroy($myWatermark);

Application Testing

Open application into browser.

URL: http://localhost/watermark-img/

It will execute index.php and opens application as

We hope this article helped you to learn How To Add Logo Watermark To Image in PHP Tutorial in a very detailed way.

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