When you delete a video in Synthesia:
The video is moved to the trash folder, where it can be restored for up to 30 days.
After 30 days, or if you choose to permanently delete it, the video is permanently removed from the system, including all backups. This cannot be undone.
To learn more, check out our Trash page documentation.
Notes:
Deleting a video does not refund or restore the minutes used to create it.
If the deleted video was part of a translation set, it will be detached from the root video and removed from the translation folder.