Here's the FAQ for photos You will need to scan the license first. I find a .jpg works best.
As far as census documents, depends... As a government document they have no copyright, however if you've gotten the photo from Ancestry, familysearch, any of the websites online, the photo itself is copyrighted, so you can't use it without asking permission. You can copy the data in the census record into a profile, but not the photo. Now if you made a copy of a census document, (I have a few), then you can use it.
