Is there any way someone could recover hidden text from a jpg. For example in the picture
The JPEG format has no concept of multiple layers. This means, there can not be any invisible information in the image data itself which somehow can be made visible. It is though possible that meta information contained in the JPEG file still contain information somebody tried to hide. For example an image editor might unknowingly preserve the thumbnail image of the original image (i.e. before the edit) and thus accidentally spill information intended to be hidden.