Am i missing something or does it lacks pdf editing functionalities like adding/editing text or adding images? I usually use https://smallpdf.com/edit-pdf because 99% of the times i simply need to compile fields with text and attach a png of my signature on some pages and resend the document to the organization that required me to compile it (schools, medical self certifications, governative tax entities and so on). For those need, smallpdf is fantastic, but obviously i'd prefer an opensource or simply a self hostable solution