I need to put an invisible watermark in some of my PSE10 edited PNG files, but since I am an amateur, I probably don't need an online subscription right now. How do I easily put an invisible watermark in my PNG files using PSE10 without subscribing to an imaging service.
When I go to Filter->Digimarc all I see is the option "Read Watermark". When I search through the PSE10 help, all I see are instructions on how to read such an invisible watermark.
Thanks,
Shawn