PHP uses the imagecopymerge() function to create a semi-transparent watermark method

This video explains how to create a translucent watermark using the imagecopymerge() function through PHP.

Use the imagecopymerge() function to create a translucent watermark for your reference. The specific content is as follows

// Load the image to be watermarked

$im = imagecreatefromjpeg('photo .jpeg');

// First we manually create the watermark image from GD

$stamp = imagecreatetruecolor(100, 70); 
imagefilledrectangle($stamp, 0, 0, 99, 69, 0x0000FF);
imagefilledrectangle($stamp, 9, 9, 90, 60, 0xFFFFFF); 
imagestring($stamp, 5, 20, 20, 'libGD', 0x0000FF);
imagestring($stamp, 3, 20, 40, '(c) 2007-9', 0x0000FF);

// Set the position and size of the watermark image

$marge_right = 10; 
$marge_bottom = 10;
$sx = imagesx($stamp);
$sy = imagesy($stamp);

// Use 50% Transparency merges watermarks and images

imagecopymerge($im, $stamp, imagesx($im) - $sx - $marge_right, imagesy($im) - $sy - $marge_bottom, 0, 0, imagesx($stamp), imagesy($stamp), 50);

// Save the image to a file and release memory

imagepng($im, 'photo_stamp.png');
imagedestroy($im); 
?>

This article explains how to create a semi-transparent watermark in PHP using the imagecopymerge() function. For more information, please Follow php Chinese website.

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