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I am using pdfkit-pythonbased on wkhtmltopdfto convert into pdf a text that contains MathJax with mhchemextension.
All works fine on the browser, like in the case :
$\ce{A <=> B + C}$
where I have used $\ce{<=>}$ to draw the so-called two one-sided arrows.
However, this is what I get after co...