When I use my image editor there is no issue. When my client (who will be updating the site) prepares her images they are getting affected by this issue. After more research it appears that there is some EXIF profile data which refers to the orientation of the image. Windows 10 (and Windows 8) recognise this and display the photo with the appropriate rotation based on the EXIF setting (so it looks correct in Windows Explorer). It would appear that this is then ignored by the image upload editor and subsequently the page that displays the image. It appears that I either need to explain to a non-technical user that she must use a command-line editor to remove EXIF orientation information from her images before uploading them, or that she must purchase photoshop etc. Neither of which seems like a great solution.
It seems to me that this issue must affect quite a few users and it seems odd that there is not an option to rotate an image available within the upload editor. Perhaps this could be added?
This site was helpful in revealing the problem: http://regex.info/exif.cgi
Orientation Rotate 90 CW
pavit 8 years ago.
