I’ve read on reddit that Google still provides unlimited photos backup if you own Pixel 5a and lower. On rooted Android you can fake that and get free backup storage, but who wants to give pictures to Google?! I was thinking if it’s possible or done by someone to create an environment on Docker by faking device info to access that free storage and backup rclone crypted files as images (by .jpeg fake extension or something)?
The word you’re looking for is steganography
Mm no, that is encoding a message in the image, but the image remains the same and normal. Only the msg within is hidden cryptographycally…
I remember getting a 500mb picture one time, and found out it was the dark side of the moon album embedded in it. Its not just messages within pictures.
I was trying to point out that OP is asking for a complete different thing.