# Keyframing

#### What are keyframes?

- These are sudden and instantaneous transitions to a different scene. (e.g. Jump Cuts, Camera Switches)
- If you encounter one of these, the lead-out should be on the exact frame before the transition happens.

#### When there are already subtitles in a video:

- You should try to match the keyframes of the hardsubbed subtitles in the video to your subtitles.
- You can also try to mask the hardsub so you don’t have to match it but this requires editing software.