NBConvert to PDF: works from command line, doesn't work from Notebook Interface

[t-makaro]

@lmnice

So it seems as though nbconvert ignores the configuration file when called from the interface.

Each Jupyter app has it’s own config file. To set nbconvert configuration inside of the notebook add these configuration options to the ~\.jupyter\jupyter_notebook_config.py file. Or reference the nbconvert config file from the notebook config file with load_subconfig. This is the proper/official way to do this.