Forum Moderators: goodroi
[edited by: incrediBILL at 12:54 am (utc) on Jan 24, 2013]
[edit reason] removed specifics, no specifics please [/edit]
You can use the X-Robots-Tag for non-HTML files like image files where the usage of robots meta tags is not possible.
Here's an example of adding a noindex X-Robots-Tag directive for images files (.png, .jpeg, .jpg, .gif) across an entire site:
<Files ~ "\.(png|jpe?g|gif)$">
Header set X-Robots-Tag "noindex"
</Files>