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Avoid null ExpansionFactor in type1 fonts (follow-up of #15289) #15901

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Jan 7, 2023
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Avoid null ExpansionFactor in type1 fonts (follow-up of #15289) #15901

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7 changes: 6 additions & 1 deletion src/core/type1_parser.js
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Original file line number Diff line number Diff line change
Expand Up @@ -654,9 +654,14 @@ class Type1Parser {
case "BlueFuzz":
case "BlueScale":
case "LanguageGroup":
case "ExpansionFactor":
program.properties.privateData[token] = this.readNumber();
break;
case "ExpansionFactor":
// Firefox doesn't render correctly a font with a null factor on
// Windows (see issue 15289), hence we just reset it to its default
// value (0.06).
program.properties.privateData[token] = this.readNumber() || 0.06;
break;
case "ForceBold":
program.properties.privateData[token] = this.readBoolean();
break;
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