Merge pull request #2562 from vyv03354/master

Fix a problem about Japanese PDFs without embedded fonts

src/evaluator.js

@@ -791,6 +791,10 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
           };
         }
 
+        var cidEncoding = baseDict.get('Encoding');
+        if (isName(cidEncoding))
+          properties.cidEncoding = cidEncoding.name;
+
         var cidToGidMap = dict.get('CIDToGIDMap');
         if (isStream(cidToGidMap))
           properties.cidToGidMap = this.readCidToGidMap(cidToGidMap);

src/fonts.js

@@ -4126,6 +4126,15 @@ var Font = (function FontClosure() {
         } else
           cid++;
       }
+
+      var cidEncoding = properties.cidEncoding;
+      if (cidEncoding && cidEncoding.indexOf('Uni') === 0) {
+        // input is already Unicode for Uni* CMap encodings.
+        // However, Unicode-to-CID conversion is needed
+        // regardless of the CMap encoding. So we can't reset
+        // unicodeToCID.
+        this.cidToUnicode = [];
+      }
     },
 
     bindDOM: function Font_bindDOM() {
@@ -4205,16 +4214,12 @@ var Font = (function FontClosure() {
         case 'CIDFontType0':
           if (this.noUnicodeAdaptation) {
             width = this.widths[this.unicodeToCID[charcode] || charcode];
-            fontCharCode = mapPrivateUseChars(charcode);
-            break;
           }
           fontCharCode = this.toFontChar[charcode] || charcode;
           break;
         case 'CIDFontType2':
           if (this.noUnicodeAdaptation) {
             width = this.widths[this.unicodeToCID[charcode] || charcode];
-            fontCharCode = mapPrivateUseChars(charcode);
-            break;
           }
           fontCharCode = this.toFontChar[charcode] || charcode;
           break;

test/pdfs/.gitignore

@@ -37,3 +37,4 @@
 !basicapi.pdf
 !mixedfonts.pdf
 !shading_extend.pdf
+!noembed-identity.pdf

test/test_manifest.json

@@ -795,5 +795,11 @@
       "md5": "9f11e815b485f7f0e1fa5c116c636cf9",
       "rounds": 1,
       "type": "eq"
+    },
+    {  "id": "noembed-identity",
+      "file": "pdfs/noembed-identity.pdf",
+      "md5": "05d3803b6c22451e18cb60d8d8c75c0c",
+      "rounds": 1,
+      "type": "eq"
     }
 ]