For online British citizenship applications, you upload your own passport-sized photograph and enter each referee's details (name, date of birth, address, profession, contact information) directly into the digital form [1][2][3]. The system then generates a referee declaration form for each referee to complete [2][3]. However, the referees do not sign digitally within an online portal. Instead, they must print the generated declaration form, physically sign it, and attach a copy of your photograph to that printed document [2]. Once signed and the photo is affixed, you scan these completed forms and upload them back to the digital portal as supporting evidence [2]. The same single applicant photograph serves both referee declarations; you do not need two separate photos [1][3]. This hybrid process—digital submission of details and photo upload by the applicant, but physical signing by referees—is the current procedure for online applications [2].