[Plugin: User Photo] Transparent Background

hey, the User Photo plugin doesn’t handle transparency. If you want you can modify the code a little.

here is what you need to do(User Photo ver. 0.9.5.1)
code taken from: http://wordpress.org/support/topic/plugin-user-photo-transparent-png-support?replies=4

1. open “user-photo.php”
2. find line 899

   elseif ( $info[2] == IMAGETYPE_PNG ) {
   			if (!imagepng( $imageresized, $newFilename ) ) {
   				$error = __( "Thumbnail path invalid" );
   			}
   		}

3. change it to

   elseif ( $info[2] == IMAGETYPE_PNG ) {
                   	@ imageantialias($imageresized,true);
       			@ imagealphablending($imageresized, false);
       			@ imagesavealpha($imageresized,true);
       			$transparent = imagecolorallocatealpha($imageresized, 255, 255, 255, 0);
       			for($x=0;$x<$image_new_width;$x++) {
       				for($y=0;$y<$image_new_height;$y++) {
       					@ imagesetpixel( $imageresized, $x, $y, $transparent );
      			 		}
       			}
       			@ imagecopyresampled( $imageresized, $image, 0, 0, 0, 0, $image_new_width, $image_new_height, $info[0], $info[1] );
      			if (!imagepng( $imageresized, $newFilename ) ) {
   				$error = __( "Thumbnail path invalid" );
   			}
   		}

4. Upload your photo again

Thx. This code worked perfectly for me.
I can upload PNG’s whith transparent background.