Photo safety?

[Mark]

Facebook will shrink your photos no matter what size you upload them at. It has to; there are so many photos uploaded there that even with Facebook's resources, there probably isn't enough space to put the all at their original size.

To share photos at full size, you would use something like a personalised website from Zenfolio, etc. I think even Flickr downsamples pictures a bit, although not as much as Facebook does.

To protect the pictures from being changed, you could watermark them, which makes it harder (but certainly not impossible) for people to mess about with them. As far as I know, there's no way to disable downloading on Facebook, but I'm not a hundred per cent sure on that. I think that if you upload a picture, anyone who can see it can download it.

Basically, putting a picture on Facebook is not a good idea if you want that picture to be "safe".