: Ensure your subtitles start from 00:00:00 rather than at the one-hour mark (01:00:00) to avoid synchronization issues.

: Locate the sub-section titled 'Subtitles and Captions' .

How do I add subtitles or captions to my video? - Help Center

: Use the dropdown menu to select Croatian .

: If you are submitting to a Croatian event like the Zagreb Film Festival, check their specific rules regarding burned-in subtitles versus sidecar files, as requirements can vary between feature and short film categories.