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Merge pull request #7628 from Snuffleupagus/issue-7580

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Fallback to the `StandardEncoding` for Nonsymbolic fonts without `/Encoding` entry (issue 7580)
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Jonas Jenwald 2016-11-29 12:37:36 +01:00 • committed by GitHub
commit 451956c0b1
4 changed files with 110 additions and 3 deletions
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13
src/core/evaluator.js
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@ -1746,11 +1746,18 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
if (baseEncodingName) {
properties.defaultEncoding = getEncoding(baseEncodingName).slice();
} else {
encoding = (properties.type === 'TrueType' ?
WinAnsiEncoding : StandardEncoding);
var isSymbolicFont = !!(properties.flags & FontFlags.Symbolic);
var isNonsymbolicFont = !!(properties.flags & FontFlags.Nonsymbolic);
// According to "Table 114" in section "9.6.6.1 General" (under
// "9.6.6 Character Encoding") of the PDF specification, a Nonsymbolic
// font should use the `StandardEncoding` if no encoding is specified.
encoding = StandardEncoding;
if (properties.type === 'TrueType' && !isNonsymbolicFont) {
encoding = WinAnsiEncoding;
}
// The Symbolic attribute can be misused for regular fonts
// Heuristic: we have to check if the font is a standard one also
if (!!(properties.flags & FontFlags.Symbolic)) {
if (isSymbolicFont) {
encoding = MacRomanEncoding;
if (!properties.file) {
if (/Symbol/i.test(properties.name)) {