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diff --git a/mdtopdf b/mdtopdf
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+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# @describe Convert markdown file to PDF
+# @meta require-tools pandoc
+# @arg inputfile+ markdown file
+# @option --font[?`_choice_font_fn`] font (default Arial)
+# @option --from[?`_choice_from_fn`] from format
+# @option --pdf-engine[typst|xelatex] PDF engine
+
+# Specification: https://github.com/sigoden/argc/blob/main/docs/specification.md
+
+_choice_font_fn() {
+  fc-list : family
+}
+
+_choice_from_fn() {
+  pandoc --list-input-formats
+}
+
+find_pdf_engine() {
+  for engine in typst xelatex; do
+    if command -v "$engine" &>/dev/null; then
+      echo "$engine"
+      exit
+    fi
+  done
+  exit 2
+}
+
+main() {
+  local engine
+  local from
+  engine=${argc_pdf_engine:-$(find_pdf_engine)}
+  from=${argc_from:-markdown}
+  for infile in "${argc_inputfile[@]?}"; do
+    outfile="${infile%.*}.pdf"
+    pandoc --from="$from" --pdf-engine="$engine" -V mainfont="${argc_font:-Arial}" "$infile" -o "$outfile"
+  done
+}
+
+eval "$(argc --argc-eval "$0" "$@")"