Adding Image as Watermark using PHP

To protect your image or want to mark an image is made by you, adding watermark on photo is the option to identify. In PHP I have wrote an article how to adding text on photo as watermark . For this version I will apply an image watermark instead of using text.

The below steps will covers the quick basics how to do we apply another image as the watermark with example.

Summary Functions

The below are functions that we will use in this article.

Add Watermark on Image

Example #1

<?php
    $sourceImage = "original_photo.jpg";
    $watermark = "watermarked.png";
    $watermakedImage = "photo_with_watermark.jpg";// Not exist yet

    // Watermark image object
    $imgWatermark = imagecreatefrompng($watermark);
    
    // Create image object from jpeg file.
    $imgToBeWatermark= imagecreatefromjpeg($sourceImage);
    // Get size source image, width & height
    $size = getimagesize($sourceImage);
    // Get size watermark, width & height
    $sizeWm = getimagesize($watermark);
    
    $watermarkWidth = $sizeWm[0];
    $watermarkHeight = $sizeWm[1];
    // Image to be watermarked quality (0 to 100)
    $quality = 60; 
    
    // Position X = left, Y = top
    $posX= $size[0] - $watermarkWidth - 50;
    $posY= $size[1] - $watermarkHeight - 100;
    // Apply watermark image on source image
    imagecopy($imgToBeWatermark, $imgWatermark,
    $posX, $posY,
    0, 0,
    $watermarkWidth, $watermarkHeight);

    // Save new jpegimage
    imagejpeg($imgToBeWatermark, $watermakedImage, $quality);

    // Clear memory
    imagedestroy($imgToBeWatermark);
    imagedestroy($imgWatermark);
?>

Output #1