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Merge pull request #3007 from brendandahl/delta-encode

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Fix encoding of type1 private dictionary arrays.
This commit is contained in:
Yury Delendik 2013-04-30 12:47:56 -07:00
commit 796023fca5
1 changed files with 9 additions and 1 deletions
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src/fonts.js
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@ -5684,7 +5684,15 @@ Type1Font.prototype = {
var field = fields[i]; var field = fields[i];
if (!properties.privateData.hasOwnProperty(field)) if (!properties.privateData.hasOwnProperty(field))
continue; continue;
privateDict.setByName(field, properties.privateData[field]); var value = properties.privateData[field];
if (isArray(value)) {
// All of the private dictionary array data in CFF must be stored as
// "delta-encoded" numbers.
for (var j = value.length - 1; j > 0; j--) {
value[j] -= value[j - 1]; // ... difference from previous value
}
}
privateDict.setByName(field, value);
} }
cff.topDict.privateDict = privateDict; cff.topDict.privateDict = privateDict;