I noticed a number of images recently uploaded sideways. When asked the uploaders said 'I don't know why, it was the right way round when I uploaded it?'. One possible reason: some cameras have a motion sensor and use it to set an 'orientation' flag in the 'tiff header' (Yes, I know, you uploaded a jpeg, but jpegs are really a special case tiff). Windows 8 & 10 use the flag to orient the image when they display them (Macs may too, I've just never tested it): Win 7 doesn't. Some Unix and Linux varieties don't either. Server farm managers tend to use older technologies for reliability so some of the software updates to manage orientation have not been applied, hence, your nice portrait orientated picture gets served to the web in landscape. Hence the unexpected sidewaysness.
I first noticed this because I sync all my files between my Win 10 laptop and Win 7 desktop: it seriously pissed me off, but I dutifully reoriented my pics on Win 7 and sync them back.
This wasn't always convenient when updating my web pages on vacation so I researched my picture management tool, Irfanview, and found a setting 'Autorotate Picture according top Exif Settings' which I turned off, and Voila, my pictures in Irfanview are displayed in their native mode. I rotate them and like magic they stay that way despite Windows.
BTW, Web servers routinely strip Exif data (you know, that bit that contains your name and copyright, the picture title and camera settings (including GPF if you have it turned on)). This is not usually a problem, but if you have included your name and copyright - known as 'Rights Data' - it is stripped off too, essentially your proof that you OWN that image. It is technically a violation of the Berne Convention and in some countries, illegal. You should always update this info on your images, it is a way to establish that you own the image if you ever get into a dispute. Remember too, if you give your camera to someone else to take your picture they technically own the copyright - there is arguably an implicit contract that they are ceding the rights to you but a right prick could make life difficult for you.
I first noticed this because I sync all my files between my Win 10 laptop and Win 7 desktop: it seriously pissed me off, but I dutifully reoriented my pics on Win 7 and sync them back.
This wasn't always convenient when updating my web pages on vacation so I researched my picture management tool, Irfanview, and found a setting 'Autorotate Picture according top Exif Settings' which I turned off, and Voila, my pictures in Irfanview are displayed in their native mode. I rotate them and like magic they stay that way despite Windows.
BTW, Web servers routinely strip Exif data (you know, that bit that contains your name and copyright, the picture title and camera settings (including GPF if you have it turned on)). This is not usually a problem, but if you have included your name and copyright - known as 'Rights Data' - it is stripped off too, essentially your proof that you OWN that image. It is technically a violation of the Berne Convention and in some countries, illegal. You should always update this info on your images, it is a way to establish that you own the image if you ever get into a dispute. Remember too, if you give your camera to someone else to take your picture they technically own the copyright - there is arguably an implicit contract that they are ceding the rights to you but a right prick could make life difficult for you.
