Most of the documents pertaining to business should be saved as PDFs as they are hardly be editable and hence they sound to be the safest way of protecting the confidential information pertaining to the business. So, for every simple transaction that you do if you have to type the whole content in the word document and then convert that into PDF it would be a real messy. Of course, you could also save the template in the word document and replace the key value holders so that the PDF could be created with minimal effort.
However, when the inputs have to come from various locations and from various people, it is good that you have the mechanism of sending the content that could be embedded in the HTML code and then be converted to the PDF. This may sound to be amazing and the same amazing accomplishment of HTML to PDF could be done with the help of RESTful HTML to PDF API that is very easy to work with. Once you start working with it, you do not get scared of losing your job as you could do many wonders when the APIs provide you too many features and parameters each of which could be configured for the specific use case that you are your clientele has.
The moment you talk about APIs and parameters business people with mere software knowledge would start worrying a lot as they are afraid of coding. To make life easy for such people, the standard templates and easy methods to customize the templates to a certain extent would always be explained to you through the instructions provided for using the APIs. Now that you know a predefined way of working with APIs, it is no more considered as a risky thing to work on with no guarantee on the returns.