On the product click edit > MegaEdit > scripts, there is a text on curve field option > tick it (if it is not in the list raise a ticket with helpdesk to enable this for you chosen storefront or platform)


 
On the product itself navigate to fields > add text on curve

 
There is a curve option

 

In this field you will need to add the values you can get from a new webpage by adding "/toch.html" to the end of your URL.  Example mycompanyname.infigosoftware.com/toch.html

*please note that the "Show render mode" setting is not supported on custom fields which this script uses.  So there is limited font styling available*