In AEM content page, there is a footer which shows the copyright with “year”. We want to auto-update copyright “Year”. Currently, we are authoring footer year in the authoring dialog. I know we can achieve on the client side, is there any way to achieve the same on the AEM server side?
In that case you need to redesign your page footer. You need to define clearly which part can be authored, and which part is managed / created / authored by AEM itself. At least that would be the cleanest way.
Do you maintain the page footer per page? Why don't you maintain it centrally -- once for all pages?