If you take your own pictures, you need to observe the subjects’ personal rights.
If you do not have their consent, the persons depicted must be rendered unrecognizable (e.g., by blurring, etc.).
Make an entry in the file information for archival purposes so that the author, image subject, and date of the photograph can also be viewed later.
Please obtain the consent of the persons depicted. Clarify in advance whether these photos can also be used for advertising purposes (brochures), online, or on social networks such as Facebook.
Even if you are using your own photographs, the photographer must be cited when they are published online or in print publications (even if you are using photographs from a private collection, the photographer’s consent and an attribution are required).