Watermarks - Arnold for Maya
The watermark will appear on renders if Arnold can't find a license.
Get a license
To remove the watermark a license server needs to be installed and a valid license running. See the Licensing page for more information.
I've got a license but the watermarks are still there
If the watermarks are still there, go to the Arnold Render settings, and in the system tab, license group, verify Skip License Check is disabled. With this setting enabled Arnold will always render your image with a watermark even if you have a valid license.
But I don't want any watermarks ever
When rendering on a farm, Arnold 7.3 and later abort by default if there no license available, so you don't have to worry about rendering watermarked images.