http://swonderstzr43aczpcwdoyc25vwxngyromja7pyb5sf26ap3v535sxqd.onion/resources/about-photos-how-can-i-check-and-make-sure-they-do-not-contain-any-metadata-exif-for-malicious-people-to-track-me-or-identify-me
There are many other metadata sections that potentially could be expose or leak information as well. This could be the XMP, MPF (which may also contain additional EXIF), IPTC, Photoshop, Adobe, XAP, XAP-Ext, proprietary content and so on.