To use the new features, click "Edit photo" in the detail page of the photo. The buttons "rotate left" and "rotate right" rotate the photo in the desired directions. "Crop" allows you to cut your picture. With "Add Note" you can mark (or tag) persons in the picture and add short notes. Simply drag the little box to desired spot in the picture and start typing in the name of the person you would like to mark. In the list, you will find all the persons to be considered automatically. When you're done, click "OK" and "Save".

Now, the person is marked (or tagged) in the picture. On mouseover, the note and the name will be displayed. A click on the tag will take you to the person's profile. Additionally, in all profiles in the tree the link "Photos of XY". As soon as a person is tagged, the photo will show up in her/his profile.