Is it possible to automatically add vultures and watermarks to MS Office documents?

Question

SharePoint

The team was faced with the need to tag uploaded documents. The scheme is as follows: the user loads a MS Word/PowerPoint document into the system, the system puts the necessary marks "SECRET" into it, and so on. What are the implementation methods? Preferably using MS Office Online. MS Word has a "Watermark" feature, but it doesn't work because it's not in PowerPoint. Who faced similar features, help.

Answer 1

you just described it yourself
in the PP of the substrate, of course not, but you can also demolish the topic there and put another one - so put it