Set ExpansionFactor to 0.06 when it's equals to 0 in the private dict…

… of CFF fonts
mozilla · Jan 7, 2023 · e565e45 · e565e45
1 parent 38e46e7
commit e565e45
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/core/cff_parser.js b/src/core/cff_parser.js
@@ -792,6 +792,12 @@ class CFFParser {
  );
  parentDict.privateDict = privateDict;
 
+ if (privateDict.getByName("ExpansionFactor") === 0) {
+ // Firefox doesn't render correctly such a font on Windows (see issue
+ // 15289), hence we just reset it to its default value.
+ privateDict.setByName("ExpansionFactor", 0.06);
+ }
+
  // Parse the Subrs index also since it's relative to the private dict.
  if (!privateDict.getByName("Subrs")) {
  return;