1st Birthday Personalized Photo Invitations. 8 Invitations and 8 envelopes. Front: You personalize with a 3in x 4in. photo. Inside has spaces for the guest of honor, date, place, time and to RSVP. Approximately 4in x 5in. Personalize your invite by inserting a picture for your guest to save as a keep sake. Perforated edge for the guest to tear off for a keepsake.