sastgroup.com

Aggiungere un watermark alle vostre immagini con PHP

Posted on 18. Nov, 2009 by daniele in php, tutorials

Se volete aggiungere una firma alle vostre immagini in modo da renderle uniche, vi basterà applicare questo script che non farà altro che fondere un'immagine sull'altra!

 
< ?php  
 
$main_img 		= "Porsche_911_996_Carrera_4S.jpg"; // main big photo / picture
$watermark_img	= "watermark.gif"; // use GIF or PNG, JPEG has no tranparency support
$padding 		= 3; // distance to border in pixels for watermark image
$opacity		= 100;	// image opacity for transparent watermark
 
$watermark 	= imagecreatefromgif($watermark_img); // create watermark
$image 		= imagecreatefromjpeg($main_img); // create main graphic
 
if(!$image || !$watermark) die("Error: main image or watermark could not be loaded!");
 
$watermark_size 	= getimagesize($watermark_img);
$watermark_width 	= $watermark_size[0];
$watermark_height 	= $watermark_size[1];  
 
$image_size 	= getimagesize($main_img);
$dest_x 		= $image_size[0] - $watermark_width - $padding;
$dest_y 		= $image_size[1] - $watermark_height - $padding;
 
// copy watermark on main image
imagecopymerge($image, $watermark, $dest_x, $dest_y, 0, 0, $watermark_width, $watermark_height, $opacity);
 
// print image to screen
header("content-type: image/jpeg");
imagejpeg($image);
imagedestroy($image);
imagedestroy($watermark);