I've attached some JPG files to notes in contact records, but them I can't open them and if I save them locally then most applications can't open teh saved version and say they aren't in a supported file format, though surprising, Adobe Acrobat will open them (which is not a solution for most users).
I'm using WordPress 5.3, CiviCRM 5.15.1
Any ideas what could be going on?
od -xc filename.jpg | head
from a shell.<?php
. If you open the corrupted downloaded file using notepad what do you see at the start of the file?