Maybe other users would expect what happens and it is not a bug (although I would tend to think so) - before opening a bug report, here is a more complete description on what happens: this is related to Image orientation wrong after resize (orientation bug in server based image processing) (which is a bug in XWiki) - but you can reproduce this with any kind of image (I think): (1) append a JPG image (e.g. a smartphone image with 3024 × 4032 pixels), (2) then double-click the image in the Wiki editor, (3) use the “advanced” mode to set the width to something smaller, e.g. 100 px to create a “thumbnail” effect. When hovering above the image, the download icon will yield the thumbnail size image (as displayed; I would expect to get the image in original resolution) - you need to go to “attachments” to download the image in original resolution. Perhaps there should be an (optional) additional icon/mode to get the original image when hovering?