"남자가 신문을 씁니다."
Translation:The man writes the newspaper.
•쓰다 is used when you need to use your brain or write something that need some kind of creativity (like writing a book , novel , letter to your friend , writing lyrics of song). 소설을 쓰다 to write a novel.
Also 쓰다 has something to do with calligraphy. 연필로 쓰다 = to write with a pencil.. 저는 칠판에 씁니다 = I write on a blackboard.
(•Note: 쓰다 has also many different meanings: to be accused of, to be suspected of / to use / to wear (on the head), to write / to be bitter).
•적다 is used when you just write down a piece of information like (writing a note on the notebook, writing a phone number.. )"no need to use your brain"
저는 메모를 적다 = I write a note.
- 적습니다 - Write/Writes - Used when writing something where you don't need to use your brain to write it down.
- 씁니다 - Write/Writes - Used when you need to use your brain or to write something that requires creativity. It also has to do with calligraphy.
I know I've just copied down what wede_hasan wrote, so to answer your question you can use both to write a newspaper. I think so at least.