How to change photoshop JPEG output header format?
What version of Photoshop are you using? Apparently Adobe dropped support for exporting with JFIF at some point, and replaced it with EXIF.

You can try an app like XnView to strip out meta data:

http://newsgroup.xnview.com/viewtopic.php?f=60&amp;t=24056

I just tried this with an EXIF jpeg on my computer, opened it in XnView, and then selected:

Tools &gt; Export &gt; [√] remove all metadata &gt; Save…


The resulting file remained a jpeg, but had a JFIF header.