Hello djmorgan,
On
import, you can add your copyright to the IPTC data of all imported photos. This can also be applied manually under Metadata > IPTC > Copyright.
If you wish to embed it
visually, In
Edit > Watermark Creator, you can design your watermark/copyright notice and apply that to photos prior to export.
Alternatively, in
Export Preferences, your watermark can be applied to a batch of photos. Those selected export preferences can be saved as an export profile to be applied to future exports if desired.
PIX
PIX YouTube channel