I have a PHP application that I use to post to my X, Mastodon and Bluesky accounts. This works well but I noticed the last time I posted an image from my iPhone that while it was fine on X and Mastodon on Bluesky the image was upside down (see above and here)!
Interestingly this only happens when posting via the Bluesky API, if you upload the same from the web interface, for example, it works fine.
Enter EXIF
When you take a picture with a modern digital camera, such as an iPhone, it embeds into that … Read the rest









