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				@@ -28,8 +28,8 @@ factory((root.pdfjsDistBuildPdfCombined = {})); 
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				   // Use strict in our context only - users might not want it 
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				   'use strict'; 
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				-var pdfjsVersion = '1.4.48'; 
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				-var pdfjsBuild = '02b161d'; 
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				+var pdfjsVersion = '1.4.51'; 
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				+var pdfjsBuild = '03f12a1'; 
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				   var pdfjsFilePath = 
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				     typeof document !== 'undefined' && document.currentScript ? 
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				@@ -45328,11 +45328,12 @@ var PartialEvaluator = (function PartialEvaluatorClosure() { 
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				                                                    xref, stateManager) { 
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				       // This array holds the converted/processed state data. 
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				       var gStateObj = []; 
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				-      var gStateMap = gState.map; 
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				+      var gStateKeys = gState.getKeys(); 
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				       var self = this; 
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				       var promise = Promise.resolve(); 
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				-      for (var key in gStateMap) { 
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				-        var value = gStateMap[key]; 
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				+      for (var i = 0, ii = gStateKeys.length; i < ii; i++) { 
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				+        var key = gStateKeys[i]; 
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				+        var value = gState.get(key); 
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				         switch (key) { 
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				           case 'Type': 
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				             break; 
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				@@ -45365,12 +45366,11 @@ var PartialEvaluator = (function PartialEvaluatorClosure() { 
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				               gStateObj.push([key, false]); 
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				               break; 
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				             } 
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				-            var dict = xref.fetchIfRef(value); 
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				-            if (isDict(dict)) { 
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				-              promise = promise.then(function () { 
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				+            if (isDict(value)) { 
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				+              promise = promise.then(function (dict) { 
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				                 return self.handleSMask(dict, resources, operatorList, 
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				                                         task, stateManager); 
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				-              }); 
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				+              }.bind(this, value)); 
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				               gStateObj.push([key, true]); 
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				             } else { 
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				               warn('Unsupported SMask type'); 
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				@@ -45402,7 +45402,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() { 
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				         } 
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				       } 
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				       return promise.then(function () { 
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				-        if (gStateObj.length >= 0) { 
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				+        if (gStateObj.length > 0) { 
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				           operatorList.addOp(OPS.setGState, [gStateObj]); 
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				         } 
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				       }); 
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