Add 'Indexed' cs abbreviation

src/colorspace.js

@@ -135,6 +135,7 @@ var ColorSpace = (function ColorSpaceClosure() {
             basePatternCS = ColorSpace.parseToIR(basePatternCS, xref, res);
           return ['PatternCS', basePatternCS];
         case 'Indexed':
+        case 'I':
           var baseIndexedCS = ColorSpace.parseToIR(cs[1], xref, res);
           var hiVal = cs[2] + 1;
           var lookup = xref.fetchIfRef(cs[3]);

test/pdfs/.gitignore

@@ -20,6 +20,7 @@
 !scan-bad.pdf
 !freeculture.pdf
 !pdfkit_compressed.pdf
+!TAMReview.pdf
 !issue918.pdf
 !issue1249.pdf
 !smaskdim.pdf

test/test_manifest.json

@@ -472,6 +472,14 @@
       "rounds": 1,
       "type": "eq"
     },
+    {  "id": "tamreview",
+      "file": "pdfs/TAMReview.pdf",
+      "md5": "8039aba56790d3597d2bc8c794a51301",
+      "rounds": 1,
+      "pageLimit": 5,
+      "link": true,
+      "type": "eq"
+    },
     {  "id": "issue925",
       "file": "pdfs/issue925.pdf",
       "md5": "f58fe943090aff89dcc8e771bc0db4c2",