Hi Tim, as the last commit was in 2017, I assume slate is dead. Maybe you can set the [development status](https://github.com/timClicks/slate/blob/master/setup.py#L28) to [`Development Status :: 7 - Inactive`](https://pypi.org/search/?c=Development+Status+%3A%3A+7+-+Inactive)? Which libraries would you recommend for reading PDF files?