I have a client who has uploaded many giant images to the CMS (8mb+). I'd like to free up that space now that those image have been transformed to more web-friendly sizes. Is it safe for me to delete the original files stored on the server or does Craft require those to create new transforms?

1 Answer 1


Does deleting an original asset but keeping the transform folder asset make Craft replace the original file with the biggest transform?

No - Craft will always use the originally uploaded asset as the "source of truth" for generating new transforms.

You can, however, replace the originally uploaded 8mb+ file with a smaller one, and it'll be used as the source of truth for generating new transforms.

  • Thanks Brad! A bit outside the scope of this forum's focus but is there a batch image downsizer you could recommend? Commented Jan 21, 2021 at 6:47
  • 1
    The last time I tried anything like that, I automated it in Photoshop.
    – Brad Bell
    Commented Jan 21, 2021 at 18:32

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