Can I do it from an IPhone?
Yes. First, you click “Full Version” (which is at the bottom of every page). Then click your name (top right) and hit “My Profile”. Click “Edit my Profile” (black button in the upper right of your profile). Hit “Change my photo...” (grey button next to Photo). After this, you can either use an image resizer (such as this one http://www.simpleimageresizer.com/ forum doesn’t list what dimensions it wants but you can tinker around) or use Gravatar (which I use—making an account is really easy).
. I have a problem that says that my file is too large. Is there a way to shrink it for free? Nvm I just found out how to do it 
