Ive been playing around with Picmonkey and thought I would put together a tutorial to help out anyone who wants their own signature for the end of their posts. This is only very very basic, but its what I've used so I hope you can learn from it. Here we go!
So there it is! Hopefully it is easy to follow and that it works for you, in relation to the border being visible when you add it to your blog, that is actually a feature in your CCS so you'll need to get the code to add in to remove the borders. This works for pictures also.
If you have any questions, leave them in a comment below.