hi. I'm fairly new to Lightroom and I've been trying to add watermarks to my images so I can post my work online. I've made my watermark in Photoshop and can add the water mark to photos in Lightroom however when I export my watermarked images, the water mark disappears. Is it suppose to disappear or should my watermark be visible? Is there a trick to making the mark stick to the image so I can post it to tumblr/Flickr etc?