No, unfortunately images can't be rotated after they've been uploaded.
When uploading to Picfair, we don't make any adjustments to your image, all images are uploaded in the orientation in which the original file is saved.
There can be confusion as image viewing tools like 'Preview' may automatically rotate the view to vertical, even though the image file itself may still be saved as horizontal.
We recommend using an image editing programme to rotate and save any images to your desired orientation before uploading.
You can delete any images uploaded in the wrong orientation by following the instructions here.