pango-view
pango-view --font="Garuda 50" test-thai_kigen.txt --output=pv_kigen.png
hb-view /usr/share/fonts/truetype/tlwg/Garuda.ttf --text-file=test-thai_kigen.txt --output-format=png --output-file=hb_thai_kigen.png
pango-view --font="Garuda 50" test-thai_kigen.txt --output=pv_kigen.png
hb-view /usr/share/fonts/truetype/tlwg/Garuda.ttf --text-file=test-thai_kigen.txt --output-format=png --output-file=hb_thai_kigen.png