Answer:
press release, captioned photograph
Step-by-step explanation:
A press release is an official statement which is given to the members of the press i.e., the members of the news media for the spread of information to the public.
Captions are the words used to describe the contents of a photograph.
Hence, the document which describes the product that ACME Corp releases in an event is called the press release and the photograph is a captioned photograph.