fix: Use new fonts for PDFization (#5688)

ietf/doc/models.py

@@ -14,6 +14,7 @@ from pathlib import Path
 from lxml import etree
 from typing import Optional, TYPE_CHECKING
 from weasyprint import HTML as wpHTML
+from weasyprint.text.fonts import FontConfiguration
 
 from django.db import models
 from django.core import checks
@@ -626,6 +627,7 @@ class DocumentInfo(models.Model):
             stylesheets.append(finders.find("ietf/css/document_html_txt.css"))
         else:
             text = self.htmlized()
+        stylesheets.append("https://static.ietf.org/fonts/noto-sans-mono/import.css")
 
         cache = caches["pdfized"]
         cache_key = name.split(".")[0]
@@ -635,10 +637,12 @@ class DocumentInfo(models.Model):
             pdf = None
         if not pdf:
             try:
+                font_config = FontConfiguration()
                 pdf = wpHTML(
                     string=text, base_url=settings.IDTRACKER_BASE_URL
                 ).write_pdf(
                     stylesheets=stylesheets,
+                    font_config=font_config,
                     presentational_hints=True,
                     optimize_size=("fonts", "images"),
                 )