A little addendum, I'm also contemplating to create a manual service where you could send me a document in any format (JPG, PSD, Microsoft Word) and I'd create a REST endpoint that you can call with the data that you want to have inserted into the document. The output of this rest endpoint would be the binary PDF data.

This way your dev team would not have to invest any time at all in the creation of PDF documents. Shoot me a mail at the email address in my profile if you want to know more.