For logged on users, you can use the role security to show/hide the watermark on a per album basis. Create a role named NoWatermark, give it the "Do not show watermark on image" permission, and assign it to all albums where the watermark should not appear. Then add your users to this role.

Since roles apply only when a user is logged on, this feature is not available for anonymous users. However, if you are handy with C#, you could write a couple lines in the session start event to automatically log on all users to an account you specify.

I will add your request to the feature request list, but it is a pretty low priority unless others chime in wanting the feature, too.

Here is some sample code to automatically log in a user named admin:



This technique won't work when the password is hashed, but Gallery Server does not hash the password by default.

You can put this code in the Init event or Page_Load event of the global.master master page, the base class for all pages (GspPage.cs), the code-behind for the main page default.aspx, or maybe the session start event in global.asax. Not sure which would work best, but I would probably start with the Init or Page_Load event of GspPage.cs.

You probably want to wrap the above code with an if test for IsAuthenticated so you only log on anonymous users.