I've inserted a few JPEG images for backgrounds into a Sketch document, and now I want to get the full-resolution images out to use on the web. I don't want to export the JPEG into another JPEG, compressing the image yet again, but that is the only method that I can find.I don't trust Sketch's JPEG optimization to be as good as PS's since it isn't specifically a raster editor.
Is there a way to access the original images placed into the document, and "copy and paste" them out, as opposed to "export as a new JPEG"?