Photos are displayed according to the orientation information from the camera that took the photo. This can cause some photos to appear sideways or upside down.
For example, If you used a camera and held it vertically to take a photo in portrait mode, that photo can be saved sideways, in landscape mode. This can happen if the auto-rotate feature of the camera is turned off.
How To Rotate a Photo
You can correct the orientation of the original photos using this online tool:
http://www198.lunapic.com/editor/?action=rotate
Rotate the photo as follows:
- Upload the picture using the Upload button (top left)
- Click on the Rotate link
- Use the arrows to rotate the photo
- Save a copy of the photo to your device
You can then to re-add the corrected photo and that should appear the right way round.
iPhone / iPad
If you're using an Apple device, you can find more information on how to take photos the correct way around here:
https://filmora.wondershare.com/mobile-editing-tips/how-to-rotate-photos-on-iphone.html