@gnelson, I have used Cloudinary extensively for image transformations but not for videos, but I believe the fundamentals are very much the same for both. All your transformations are made on top of Cloudinary URLs, which means if you modify a URL that particular version of the file in the cloud will get modified. If you want to show a text overlay only when previewing and not when downloading then you will have to use two different versions of URL, one when the user is previewing (Cloudinary one) and one when he is downloading (normal s3 URL).

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