This is unfortunately impossible with ShareKit (I've used ShareKit myself). At some point, you will have to upload the image somewhere, be it some image server or Facebook-- before you can share the image. (Don't forget, sharing the image is a completely different thing then merely uploading to Facebook).
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.