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Ensure that entries in the Differences array of Type1 fonts are either numbers or names

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This patch is yet another installment in the (never ending) series of bugs in PDF files with non-embedded fonts.

Fixes http://www.int.washington.edu/talks/WorkShops/int_08_37W/People/Franz_M/Franz.pdf.
This commit is contained in:
Jonas Jenwald 2015-03-09 14:36:45 +01:00
parent 62c3db0bf5
commit 4c2ad3bc7b
4 changed files with 96 additions and 1 deletions
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7
src/core/evaluator.js
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@ -1284,8 +1284,13 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
var data = diffEncoding[j];
if (isNum(data)) {
index = data;
} else {
} else if (isName(data)) {
differences[index++] = data.name;
} else if (isRef(data)) {
diffEncoding[j--] = xref.fetch(data);
continue;
} else {
error('Invalid entry in \'Differences\' array: ' + data);
}
}
}