Can an application detect photos that's been photoshop even though the image is flatten?

Hello, do you really think you should try to do something illegal in your job, then do additional steps to hide the fact that you did it?

Some structures that do not allow editing, permit it under the condition that it would be clearly disclosed, in metadata, in the image caption, and sometimes by an overlay clearly stating that the image has been edited...

There are entire industries dedicated to image forensics...

If it comes down to it, digital imaging forensic software/trained people will surely catch you out.

Even if you strip out metadata, it will likely be re-ordered or otherwise changed from the original, at least leading to a suspicion that something may have been changed.

If you save into JPEG, each program leaves an often unique "fingerprint" in the DCT which can be detected, so for those that know how to look, a JPEG saved directly from a camera is different to other cameras or software.

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@defaulto98d4wu9relu wrote:

I recently accepted a job where I need to take pictures that is strict on no editing.

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If your job says don't edit, then don't edit. This is something that makes the newspapers when photographers get caught and then fired from their jobs. 

~ Jane

If it's skillfully done there's no way to detect it in the pixel data.

However, it will leave a trace in metadata. If that company policy is on forensic level, don't do it. Even if you edit metadata, chances are you won't exactly replicate the "virgin state" of the file.

See if this is good for you.

Forensicallyβeta