What is now required
What the photo set needs to cover
CER calls for clear, geotagged and timestamped photos of all critical labelling on the outside of the meter box(es), the switchboard(s) and inside cover(s) including the shutdown procedures, and the front and sides of the battery.
Source2The detailed guide says original JPEG, PNG or HEIC files retain the required metadata; photos embedded in a PDF do not.
Source3