Usually, DSLRs or smartphones have a ton of metadata pertaining to images taken and we usually ignore them – unless we need to look up the resolution or the model of the camera used.
But, there are few issues where this metadata could cause problems – specifically, with the orientation of the image.
Here’s what happens : when you take a photograph, the relative position of the camera lens matters. If the lens is at the bottom, and the shutter button/icon is at the top, the Orientation meta-data(from EXIF tags pertaining to the image) is set to 3(from a series of positions ranging from 1 to 8.
If you’re opening the image on Internet Explorer, it wouldn’t matter. But, for browsers that use a web toolkit, all EXIF tags are taken into consideration. So, when browsers like Google Chrome, Firefox, Safari or Opera are used to open the image, it would appear upside-down (since the image has a Orientation of 3) : eventhough the image appears upright on IE.
You can look at EXIF metadata using Chrome Extensions like EXIF Viewer. So, next time if you look at an image attached in PeopleSoft and you see that it is upright in IE, but looks flipped in Chrome, bear in mind, that the actual orientation of the image is being used.
This post is more for information purposes only!
Have fun! 🙂