Facebook privacy settings question?

[Zen]

You can't stop people re-posting your pic. but you may block the one who like to re-posting picture you upload by go to Account on the top right of the page > Privacy Setting > Customize Setting at the bottom of the section > Click on "Edit album privacy" (the last one in "Things I share" section) then select an album, click on the option on its right, and select "Customize" after a pop up loaded, in the "Hide this from" section, enter the name of who like to re-post your photo. and save your setting.

As long as they may see your photo, they may copy the photo and re-upload it. so the best way is to hide the photo.