#185 Creating documentation pdf fails on restrictive imagemagick permissions

[David Runge]

Due to severe CVEs regarding the reading and manipulation of pdfs using imagemagick's convert, the documentation pdf build fails (log in attachment).

It's a little hard to say how to go about this, as during package building I can't modify arbitrary system configuration in the container the package is building in.

Maybe there is also a better way to build the pdf?