This guide offers a high-level overview of pyHanko as a Python library. For the API reference docs generated from the source, see the :ref:`API reference <api-reference>`.
The pyHanko library roughly consists of the following components.
- The :mod:`.pyhanko.pdf_utils` package, which is essentially a (gutted and heavily modified) fork of PyPDF2, with various additions to support the kind of low-level operations that pyHanko needs to support its various signing and validation workflows.
- The :mod:`.pyhanko.sign` package, which implements the general signature API supplied by pyHanko.
- The :mod:`.pyhanko.stamp` module, which implements the signature appearance rendering & stamping functionality.
- Support modules to handle CLI and configuration: :mod:`.pyhanko.config` and :mod:`.pyhanko.cli`. These mostly consist of very thin wrappers around library functionality, and shouldn't really be considered public API.
.. toctree:: :maxdepth: 3 :caption: pyHanko library topics reading-writing sig-fields signing validation pdf-utils adv-examples