I studied in Korea and need my Korean degree, transcripts, or educational documents recognized in another?

To use Korean educational documents abroad, you usually need them authenticated with an apostille. Get an English degree certificate and transcript from your university first, then apostille them through the Ministry of Foreign Affairs (some documents go via the Ministry of Education), either at the MOFA consular office or online for eligible documents. If the destination country isn't part of the apostille convention, you instead need consular legalization at that country's embassy in Korea. Ask the receiving institution exactly which form they require before you start.