PyMuPDF
Python bindings for MuPDF's rendering library.
..., and FictionBook 2. You can annotate PDF documents and fill out forms with the mobile viewers (this feature is coming soon to the desktop viewer as well). The command line tools allow you to annotate, edit, and convert documents to other formats such as HTML, SVG, PDF, and CBZ. You can also write scripts to manipulate documents using Javascript. The library is written modularly in portable C, so features can be added and removed by integrators if they so desire.