>>>”Did you know that you can copy a jpeg that has text into OneNote, then select the image and click the “Copy Text” button, then paste the text? It may not really be safer in a jpeg.<<<
Interesting, let me try that.
Is it an automated feature on big social media?
I have no idea if it’s an automated feature, but I’d think that would be easy to do.
OCR technology has been around for quite a while, and google (and all the social media sites) index on embedded text.
Also note - machine learning can often detect objects in the pic. Including the apparent emotions of people in the pic.
All that metadata accompanies the stored indices of the online pic.
IOW, putting text in pic is not a good way to "hide" it.
Apologies if you already knew all this... ;)