What are potential reasons for the watermark not appearing on the image when using PHP?

The watermark may not be appearing on the image due to incorrect file paths, incorrect image formats, or incorrect positioning of the watermark on the image. To solve this issue, make sure the file paths are correct, the image formats are compatible, and the positioning of the watermark is set correctly. 

<?php
// Load the original image
$original_image = imagecreatefromjpeg('original.jpg');

// Load the watermark image
$watermark = imagecreatefrompng('watermark.png');

// Set the position of the watermark on the original image
$watermark_x = 10;
$watermark_y = 10;

// Merge the watermark with the original image
imagecopy($original_image, $watermark, $watermark_x, $watermark_y, 0, 0, imagesx($watermark), imagesy($watermark));

// Output the image with the watermark
header('Content-Type: image/jpeg');
imagejpeg($original_image);

// Free up memory
imagedestroy($original_image);
imagedestroy($watermark);
?>

Keywords

GD library image processing transparency file permissions image creation

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