Highlights and icons give you an exact indication of when this happens to prevent unnecessary replacements. Features such as image overlapping let users drag an image over another one and then replace it.
However, the process of finding Publisher on Microsoft’s site can be a bit difficult as it’s not an integral part of their marketing strategy and it can appear as if Microsoft just isn’t promoting its Publisher product to newer customers. It is available as a stand-alone product in conjunction with Microsoft 365. The publisher isn’t maintained as frequently as other apps and appears to be mostly ignored by Microsoft. Instead, we suggest going to their site to get direct assistance.