phpupload with watermark

[bob2588]

i want to make a script that when i upload pictures it watermakes them and save them can any one help with this

 

Thanks

 

bob

[lemmin]

Take a look at the GD and Image functions:

 

http://us.php.net/manual/en/ref.image.php

[Alex]

More specifically look into imagecopymerge(), this will allow you take 2 images and merge them with alpha transparency, or if the watermark itself is already translucent you can just use imagecopy(). I know for a fact there are examples of this on php.net, but if you need another example just ask.

[bob2588]

does that function save the picture are just put the watermark on it

[Alex]

That alone won't save it. For saving the image after you've manipulated it use image*(), depending on the format you're dealing with. Ex: imagepng(), imagegif(), etc.

[bob2588]

ok how would i open the manipulated images with this  code

 

<?php
// Create a blank image and add some text
$im = imagecreatetruecolor(120, 20);
$text_color = imagecolorallocate($im, 233, 14, 91);
imagestring($im, 1, 5, 5,  'A Simple Text String', $text_color);

// Set the content type header - in this case image/jpeg
header('Content-type: image/jpeg');

// Skip the filename parameter using NULL, then set the quality to 75%
imagejpeg($im, NULL, 75);

// Free up memory
imagedestroy($im);
?>