Businesses within the EU are forced by law (European accessibility act) to provide accessible PDF files to their customers. Creating accessible PDF files is an complex and expensive task, thus, this service offers best practices, templates and API to convert templates into PDF files. At a later stage, docker images could be made available to enterprise customers allowing them to run the service on premise, as PDFs most often contain sensitive information.
Pricing could be pay-as-you-go, i.e., customers pay per page. So far, no competitors are known. Problem with non-functional requirements is always, that often times people are not aware that they need to fulfill this law (and you don’t want to educate people to e.g. comply with GDPR) and even if they know, they might just neglect the cost and ignore the requirement.