(a video) edited and uploaded by Jacob: 제이콥에 의해 편집되고 업로드된 (동영상) --> 제이콥에 의해(by Jacob) 편집되고(편집되다 + -고('and' for Verb ending -> 편집된) 업로드된(업로드되다 + -ㄴ(adjective form for vowel ending VERB to indicate the completed action -> 업로드된) 동영상(video)이 좋았어요(was good). ***Unlike in English, if 2 verbs with conjunction word, 'and' are modifying the same noun in Korean, the first verb does not take both verb endings, 편집된(adjective form)하고(and) ; instead, it takes only conjunction verb ending, -고. 편집된하고 - not correct 편집되고 - correct ***편집하다(edit)/편집되다(be edited)

That looks perfect :) If it's the start of a sentence, you might want a capital letter for "edited". But you knew that.