Allow rsvg-convert as fallback to inkscape when converting SVGs to PDF

[kylebarron]

A server I use doesn't have inkscape installed, but does have rsvg-convert, which is based on librsvg.

Are any of the following possible?

1. Modify svg2pdf.py to see if rsvg-convert exists if inkscape doesn't
2. I have a simple Pandoc filter to convert SVGs to PDFs (trying both inkscape and rsvg-convert). I assume nbconvert uses Pandoc to convert from Markdown to TeX. Is it possible 1) to insert a filter at all and 2) to do this before svg2pdf.py gets run?

[t-makaro]

You should be able to modify SVG2PDFPreprocessor.command to call any command that you want using a config file or from the command line. If the command does not use inkscape, then nbconvert will not use inkscape. So long as the command takes 2 arguments. One for the input filename and one for the output filename.

See docs.

For reference the default command is:

self.inkscape + ' --without-gui --export-pdf="{to_filename}" "{from_filename}"'

[benz0li]

See JuliaLang/IJulia.jl#1038 (comment) on how to configure IPython and IRkernel

to output both image/svg+xml and application/pdf plot formats in the notebook file:

• image/svg+xml for plot display in the browser
  + HTML conversion using SVG instead of PNG
• application/pdf for direct PDF conversion

ℹ️ With application/pdf plot format in the notebook file, inkscape is not required for PDF conversion using nbconvert.

See JuliaPlots/Plots.jl#4288 about a possible solution for IJulia when using Plots.jl.

[benz0li]

Inkscape has been removed from the minimal-notebook: jupyter/docker-stacks#1765

@kylebarron May you close this issue?

FYI @mathbunnyru