image-php-examples-php-merged-watermark-2

  • Examples
  • Using imagecopymerge() to create a translucent
    watermark

  • Using imagecopymerge to create a translucent watermark
  • Using imagecopymerge() to create a translucent
    watermark

    Using imagecopymerge() to create a translucent
    watermark

    Example #1 Using imagecopymerge() to create a translucent
    watermark

    <?php
    // Load the stamp and the photo to apply the watermark to
    $im imagecreatefromjpeg('photo.jpeg');

    // First we create our stamp image manually from GD
    $stamp imagecreatetruecolor(10070);
    imagefilledrectangle($stamp0099690x0000FF);
    imagefilledrectangle($stamp9990600xFFFFFF);
    imagestring($stamp52020'libGD'0x0000FF);
    imagestring($stamp32040'(c) 2007-9'0x0000FF);

    // Set the margins for the stamp and get the height/width of the stamp image
    $marge_right 10;
    $marge_bottom 10;
    $sx imagesx($stamp);
    $sy imagesy($stamp);

    // Merge the stamp onto our photo with an opacity of 50%
    imagecopymerge($im$stampimagesx($im) - $sx $marge_rightimagesy($im) - $sy $marge_bottom00imagesx($stamp), imagesy($stamp), 50);

    // Save the image to file and free memory
    imagepng($im'photo_stamp.png');
    imagedestroy($im);

    ?>

    Using imagecopymerge() to create a translucent watermark

    This example uses imagecopymerge() to merge the stamp with our
    original image. Using this we can set the opacity of our stamp – in
    our example we’ve set it to 50% opacity. In practice this would be
    useful in copyright protection as semi-transparent watermarks are
    hard to remove yet allow viewers to see the image.