Can the PostgreSQL store the Multimedia files

hallo, I am working with a group on a Gradute project and we use the
PostgreSQL database for build an information system for a school.
we have a small question:
- Can the PostgreSQL store the Multimedia files ( Images ,video
,audio....)??and exactly how??
- IF not , can we make some change in the source code to make this
support for multimedia??

pleaze I want the answer very fast
cu