add alternatives

.gitignore

@@ -0,0 +1 @@
+/.idea/

README.md

@@ -7,3 +7,11 @@ Screenshot of the context menu in Nautilus (GNOME files):
 ![](./Nautilus-context-menu.png)
 
 As an example, one can have a look at this README file converted to pdf: [README.md.pdf](./README.md.pdf)
+
+## The conversion process
+
+At first the Markdown is converted to HTML with `cmark-gfm`. Then `chromium` is used to print the HTML to pdf.
+
+## Alternatives conversion methods
+
+see [alternatives.sh](alternatives.sh)

alternatives.sh

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+#!/usr/bin/env bash
+
+function convert1(){
+  md="${1}"
+  out="${md}".pdf
+
+  sudo pacman -S --needed pandoc
+  # kpathsea requires mktexfmt which is provided by texlive-core
+  sudo pacman -S --needed texlive-core
+
+  # Does not support images with relative paths
+  pandoc "${md}" -o "${out}" \
+    --from=gfm \
+    --table-of-contents \
+    --pdf-engine=xelatex \
+    --highlight-style=monochrome \
+    --number-sections \
+    -V 'fontsize: 12pt' \
+    -V 'papersize: A4' \
+    -V 'urlcolor: blue' \
+    -V 'date: \today{}' \
+    -V 'documentclass:article' \
+    -V 'geometry:margin=1.5cm'
+}
+
+function convert2(){
+  md="${1}"
+
+  # * https://www.npmjs.com/package/markdown-pdf
+  # * https://www.npmjs.com/package/remarkable
+  # * https://www.npmjs.com/package/markdown-toc
+  #
+  # > By default, remarkable is configured to be similar to GFM,
+  # > but with HTML disabled. This is easy to change if you prefer
+  # > different settings.
+
+  sudo pacman -S --needed nodejs-markdown-pdf
+  sudo pacman -S --needed nodejs-markdown-toc  # optional for TOC
+
+  # Optional: Insert TOC
+  add-toc "${md}"
+  md="${md}".TOC
+
+  # Supports relative image paths and HTML images
+  markdown-pdf \
+    --paper-format=A4 \
+    --paper-orientation=portrait \
+    --paper-border=15mm \
+    --remarkable-options='{ "html": "false" }' \
+    "${md}"
+}
+
+function add-toc(){
+  md="${1}"
+  out="${1}".TOC
+
+  # If there is a TOC anchor, the TOC can be inserted in place.
+  # This is a workaround if no such anchor is present.
+
+  head --lines 1 "${md}" > "${out}"
+  printf '\n\n**Table of Contents**\n\n' >> "${out}"
+  markdown-toc "${md}" >> "${out}"
+  printf '\n\n---\n\n' >> "${out}"
+  tail --lines +2 "${md}" >> "${out}"
+}