no problem. i saw on this account’s summary that you do pdf generation. there are two good books on ocaml, and the second, more ocaml, has a project on producing pdf files. so that seems like it may be of interest to you.

https://www.amazon.com/OCaml-Very-Beginning-John-Whitington/...

https://www.amazon.com/More-OCaml-Algorithms-Methods-Diversi...