Not knowing if this one has been answered already, but my opinion, is that
you should make a folder on a shared drive that possesses the Photo ID
photo's, then make either UNC or HTTP paths that call on the photo in the
form or report. That way, you can print a report with employee ID
information if required, and the photo's can be called on by other apps (say
something the HR may need - or security may need to reprint the employee an
ID).