If you have a Samsung or other Android tablet this is how you do it:
First take the pics on your higher settings of the camera, you go to the camera, click the settings "cog" on your screen then click resolutions. You can play with these and when you crop the pics all will be at a low enough resolution for WD posting or quick downloading for friends. So thats the next step. Once you've taken the pic you go menu, more, then crop. You can crop to full size even and hey presto!!