Possible, yes. How complex it is depends on what you want to do.
There are two ways of doing this that you can implement in RoboHelp:
- Make images with the text on them and insert them in RoboHelp. Text will not be searchable and this creates bad accessibility.
- Create div elements where you add the text. Make blank circle images and apply those as background to the elements.
For DIV elements, check: http://www.w3schools.com/tags/tag_div.asp
For backgrounds, check: http://www.w3schools.com/css/css_background.asp
I'm not that familiar with HTML, but it looks like your DIV elements solution would put text inline with other text.
In RoboHTML 11, I need to simulate callouts and text-boxes in Word: Text can be positioned at any point near a picture, even floating in front of it if necessary. And the text would still be searchable. Can you do that with DIV elements?