watermarked download for specific user group

[tubaz...@gmail.com]

Hi All,

I have only found this page regarding watermarks.

I am on Reouscesapce 9.6.

I have several user groups, and would like to set up the system in such a way that when users of a specific user group download images from the system, the images have a watermark added to them - even the full size images.

Can anyone suggest if this can be done?

Thanks,

Zoltán