Embed custom font in Rails 6

Embed custom font in rails 6 is a bit tricky, below are the steps in order to embed custom font in rails 6 project especially work it works fine for wicked pdf gem

1. Include your prefer font in app/assets/fonts/
2. Update app/assets/config/manifest.js

...
//= link_tree ../fonts

1. I also create app/assets/stylesheets/embeded_fonts.scss

@font-face {
  font-family: "khmeros_battambang";
  src: font-url("khmeros_battambang.ttf") format("truetype");
}

1. Import to app/assets/stylesheets/application.scss

@import "embeded_fonts";

1. Import to layouts/pdf.html.haml

= stylesheet_link_tag "embeded_fonts"
= wicked_pdf_stylesheet_link_tag "pdf"
= wicked_pdf_javascript_pack_tag "pdf"

1. Call the embedded font

body {
  font-family: 'khmeros_battambang', ...
}