Unauthorized reproduction or use of text, images, and photographs on this site is prohibited.

Literal

This-site within [possessive-の] description, images, photographs [possessive-の] unauthorized reproduction · unauthorized-use [object-を] prohibit.

A standard legal boilerplate sentence found on Japanese websites. 無断転載・転用 ('unauthorized reproduction/reuse') is the key legal compound. 禁止します uses the formal する ending. The ・ separator groups the two prohibited actions. A useful example of Japanese legal/formal register.