If you don't want other people to use your infographics and you want to protect them with your name or brand you can add a watermark. It's very quick and easy to do !
1) when your infographic is complete, click on the "text" button on the left toolbar
2) type your brandname or website name or your own name (anything that you want) and center it, edit it so the font size is big enough, rotate it if you want it to go from one corner to another...
4) use the "opacity" button so people can still go through the infographic easily.
You want to make the watermark visible enough so other people don't want to use your infographic with your brand name on it, but not so visible that people can't read what's on your infographic lol (see example below, the watermark reads" successful businessonline")