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Ignore named encoding for non-embedded symbol fonts (issue 16464)

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The affected font is non-embedded ZapfDingbats, however the PDF document for some inexplicable reason specifies the encoding as "WinAnsiEncoding" (which is obviously wrong).
To work-around this bug in the PDF generator, we'll simply ignore any explicitly specified named encoding for non-embedded symbol fonts.
This commit is contained in:
Jonas Jenwald 2023-05-24 09:52:49 +02:00
parent a6f9505a39
commit aeed6f2b67
3 changed files with 21 additions and 1 deletions
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13
src/core/evaluator.js
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@ -3487,6 +3487,17 @@ class PartialEvaluator {
}
}
const nonEmbeddedFont = !properties.file || properties.isInternalFont;
// Ignore an incorrectly specified named encoding for non-embedded
// symbol fonts (fixes issue16464.pdf).
if (
baseEncodingName &&
nonEmbeddedFont &&
getSymbolsFonts()[properties.name]
) {
baseEncodingName = null;
}
if (baseEncodingName) {
properties.defaultEncoding = getEncoding(baseEncodingName);
} else {
@ -3503,7 +3514,7 @@ class PartialEvaluator {
// Heuristic: we have to check if the font is a standard one also
if (isSymbolicFont) {
encoding = MacRomanEncoding;
if (!properties.file || properties.isInternalFont) {
if (nonEmbeddedFont) {
if (/Symbol/i.test(properties.name)) {
encoding = SymbolSetEncoding;
} else if (/Dingbats|Wingdings/i.test(properties.name)) {