How to increase the page width in ipython notebook (jupyter) slides

Question

In an ipython notebook (jupyter) slideshow created with

ipython nbconvert presentation.ipynb --to slides --post serve

images are of poor quality because they seem to be scaled down to the page width. How can I increase the page width / display larger images in the presentation?

I found a partial answer here but this requires doing the "--post serve" part manually which I can find no documentation for.

Answer 1

After a long search I found the answer myself :

1. Copy template file from

   lib/python2.7/site-packages/nbconvert/templates/html/slides_reveal.tpl

   to the directory of the notebook.

2. Customize it, for example, in Reveal.initialize({ }) add

   width: '80%',
   height: '100%',
   transition: 'concave',
   

3. Run

   jupyter nbconvert presentation.ipynb --to slides --template slides_reveal.tpl --post serve
   

   or just

   jupyter nbconvert presentation.ipynb --to slides --template slides_reveal.tpl
   

   then open presentation.slides.html directly in the browser. Alternatively:

   python -m SimpleHTTPServer
   

   and navigate the browser to

   http://127.0.0.1:8000/presentation.slides.html