My company uses Anvil for our document generation. The API is simple to use, works very fast, and we have had zero issues. Compared to the cost and complexity of other solutions, I would say there is no competition!
We’ve waited years to find the right PDF gen tool. Anvil abstracts all the pain away from managing complicated templates and has allowed us to empower our clients to manage their own content. A simple to use UI, repeating content … and the API returns the pdf near-instantly. Great work Anvil.