diff --git a/src/canvas.js b/src/canvas.js
index fdda9f88f..eef785f3b 100644
--- a/src/canvas.js
+++ b/src/canvas.js
@@ -207,7 +207,7 @@ var CanvasExtraState = (function CanvasExtraStateClosure() {
 var CanvasGraphics = (function CanvasGraphicsClosure() {
   // Defines the time the executeOperatorList is going to be executing
   // before it stops and shedules a continue of execution.
-  var kExecutionTime = 15;
+  var EXECUTION_TIME = 15;
 
   function CanvasGraphics(canvasCtx, commonObjs, objs, textLayer) {
     this.ctx = canvasCtx;
@@ -283,7 +283,7 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
       }
 
       var executionEndIdx;
-      var endTime = Date.now() + kExecutionTime;
+      var endTime = Date.now() + EXECUTION_TIME;
 
       var commonObjs = this.commonObjs;
       var objs = this.objs;
diff --git a/src/evaluator.js b/src/evaluator.js
index 7a748c7a6..9ac4a0dc7 100644
--- a/src/evaluator.js
+++ b/src/evaluator.js
@@ -515,8 +515,8 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
     getTextContent: function PartialEvaluator_getTextContent(
                                                     stream, resources, state) {
       var bidiTexts;
-      var kSpaceFactor = 0.35;
-      var kMultipleSpaceFactor = 1.5;
+      var SPACE_FACTOR = 0.35;
+      var MULTI_SPACE_FACTOR = 1.5;
 
       if (!state) {
         bidiTexts = [];
@@ -559,12 +559,12 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
                   chunk += fontCharsToUnicode(items[j], font);
                 } else if (items[j] < 0 && font.spaceWidth > 0) {
                   var fakeSpaces = -items[j] / font.spaceWidth;
-                  if (fakeSpaces > kMultipleSpaceFactor) {
+                  if (fakeSpaces > MULTI_SPACE_FACTOR) {
                     fakeSpaces = Math.round(fakeSpaces);
                     while (fakeSpaces--) {
                       chunk += ' ';
                     }
-                  } else if (fakeSpaces > kSpaceFactor) {
+                  } else if (fakeSpaces > SPACE_FACTOR) {
                     chunk += ' ';
                   }
                 }
diff --git a/src/fonts.js b/src/fonts.js
index 029bcb0d3..3f8928cc4 100644
--- a/src/fonts.js
+++ b/src/fonts.js
@@ -17,22 +17,17 @@
 
 'use strict';
 
-/**
- * Maximum time to wait for a font to be loaded by font-face rules.
- */
-var kMaxWaitForFontFace = 1000;
-
 // Unicode Private Use Area
-var kCmapGlyphOffset = 0xE000;
-var kSizeOfGlyphArea = 0x1900;
-var kSymbolicFontGlyphOffset = 0xF000;
+var CMAP_GLYPH_OFFSET = 0xE000;
+var GLYPH_AREA_SIZE = 0x1900;
+var SYMBOLIC_FONT_GLYPH_OFFSET = 0xF000;
 
 // PDF Glyph Space Units are one Thousandth of a TextSpace Unit
 // except for Type 3 fonts
-var kPDFGlyphSpaceUnits = 1000;
+var PDF_GLYPH_SPACE_UNITS = 1000;
 
 // Until hinting is fully supported this constant can be used
-var kHintingEnabled = false;
+var HINTING_ENABLED = false;
 
 var FontFlags = {
   FixedPitch: 1,
@@ -804,9 +799,9 @@ function isRTLRangeFor(value) {
 }
 
 function isSpecialUnicode(unicode) {
-  return (unicode <= 0x1F || (unicode >= 127 && unicode < kSizeOfGlyphArea)) ||
-    (unicode >= kCmapGlyphOffset &&
-    unicode < kCmapGlyphOffset + kSizeOfGlyphArea);
+  return (unicode <= 0x1F || (unicode >= 127 && unicode < GLYPH_AREA_SIZE)) ||
+    (unicode >= CMAP_GLYPH_OFFSET &&
+    unicode < CMAP_GLYPH_OFFSET + GLYPH_AREA_SIZE);
 }
 
 // The normalization table is obtained by filtering the Unicode characters
@@ -2627,7 +2622,7 @@ var Font = (function FontClosure() {
       lastCharIndex = 255;
     }
 
-    var unitsPerEm = override.unitsPerEm || kPDFGlyphSpaceUnits;
+    var unitsPerEm = override.unitsPerEm || PDF_GLYPH_SPACE_UNITS;
     var typoAscent = override.ascent || properties.ascent;
     var typoDescent = override.descent || properties.descent;
     var winAscent = override.yMax || typoAscent;
@@ -2635,12 +2630,13 @@ var Font = (function FontClosure() {
 
     // if there is a units per em value but no other override
     // then scale the calculated ascent
-    if (unitsPerEm != kPDFGlyphSpaceUnits &&
+    if (unitsPerEm != PDF_GLYPH_SPACE_UNITS &&
         'undefined' == typeof(override.ascent)) {
       // if the font units differ to the PDF glyph space units
       // then scale up the values
-      typoAscent = Math.round(typoAscent * unitsPerEm / kPDFGlyphSpaceUnits);
-      typoDescent = Math.round(typoDescent * unitsPerEm / kPDFGlyphSpaceUnits);
+      typoAscent = Math.round(typoAscent * unitsPerEm / PDF_GLYPH_SPACE_UNITS);
+      typoDescent = Math.round(typoDescent * unitsPerEm /
+        PDF_GLYPH_SPACE_UNITS);
       winAscent = typoAscent;
       winDescent = -typoDescent;
     }
@@ -3411,13 +3407,13 @@ var Font = (function FontClosure() {
         }
         // trying to fit as many unassigned symbols as we can
         // in the range allocated for the user defined symbols
-        var unusedUnicode = kCmapGlyphOffset;
+        var unusedUnicode = CMAP_GLYPH_OFFSET;
         for (var j = 0, jj = unassignedUnicodeItems.length; j < jj; j++) {
           var i = unassignedUnicodeItems[j];
           var cid = gidToCidMap[i] || i;
           while (unusedUnicode in usedUnicodes)
             unusedUnicode++;
-          if (unusedUnicode >= kCmapGlyphOffset + kSizeOfGlyphArea)
+          if (unusedUnicode >= CMAP_GLYPH_OFFSET + GLYPH_AREA_SIZE)
             break;
           var unicode = unusedUnicode++;
           this.toFontChar[cid] = unicode;
@@ -3441,7 +3437,7 @@ var Font = (function FontClosure() {
             ids[i] = i;
         }
 
-        var unusedUnicode = kCmapGlyphOffset;
+        var unusedUnicode = CMAP_GLYPH_OFFSET;
         var glyphNames = properties.glyphNames || [];
         var encoding = properties.baseEncoding;
         var differences = properties.differences;
@@ -3522,7 +3518,7 @@ var Font = (function FontClosure() {
           for (var i = 0, ii = glyphs.length; i < ii; i++) {
             var code = glyphs[i].unicode;
             var gid = ids[i];
-            glyphs[i].unicode += kCmapGlyphOffset;
+            glyphs[i].unicode += CMAP_GLYPH_OFFSET;
             toFontChar[code] = glyphs[i].unicode;
 
             var glyphName = glyphNames[gid] || encoding[code];
@@ -3590,7 +3586,7 @@ var Font = (function FontClosure() {
         if (this.isSymbolicFont) {
           for (var i = 0, ii = glyphs.length; i < ii; i++) {
             var code = glyphs[i].unicode & 0xFF;
-            var fontCharCode = kSymbolicFontGlyphOffset | code;
+            var fontCharCode = SYMBOLIC_FONT_GLYPH_OFFSET | code;
             glyphs[i].unicode = toFontChar[code] = fontCharCode;
           }
           this.useToFontChar = true;
@@ -3695,7 +3691,7 @@ var Font = (function FontClosure() {
       // to write the table entry information about a table and another offset
       // representing the offset where to draw the actual data of a particular
       // table
-      var kRequiredTablesCount = 9;
+      var REQ_TABLES_CNT = 9;
 
       var otf = {
         file: '',
@@ -3827,7 +3823,7 @@ var Font = (function FontClosure() {
 
     buildToFontChar: function Font_buildToFontChar(toUnicode) {
       var result = [];
-      var unusedUnicode = kCmapGlyphOffset;
+      var unusedUnicode = CMAP_GLYPH_OFFSET;
       for (var i = 0, ii = toUnicode.length; i < ii; i++) {
         var unicode = toUnicode[i];
         var fontCharCode = typeof unicode === 'object' ? unusedUnicode++ :
@@ -4151,8 +4147,8 @@ var Type1Parser = function type1Parser() {
    * of Plaintext Bytes. The function took a key as a parameter which can be
    * for decrypting the eexec block of for decoding charStrings.
    */
-  var kEexecEncryptionKey = 55665;
-  var kCharStringsEncryptionKey = 4330;
+  var EEXEC_ENCRYPT_KEY = 55665;
+  var CHAR_STRS_ENCRYPT_KEY = 4330;
 
   function decrypt(stream, key, discardNumber) {
     var r = key, c1 = 52845, c2 = 22719;
@@ -4268,7 +4264,7 @@ var Type1Parser = function type1Parser() {
     '31': 'hvcurveto'
   };
 
-  var kEscapeCommand = 12;
+  var ESCAPE_CMD = 12;
 
   // Breaks up the stack by arguments and also calculates the value.
   function breakUpArgs(stack, numArgs) {
@@ -4320,7 +4316,7 @@ var Type1Parser = function type1Parser() {
 
       if (value < 32) {
         var command = null;
-        if (value == kEscapeCommand) {
+        if (value == ESCAPE_CMD) {
           var escape = array[++i];
 
           // TODO Clean this code
@@ -4374,7 +4370,7 @@ var Type1Parser = function type1Parser() {
             var args = breakUpArgs(charstring, 5);
             var arg0 = args[0];
             charstring.splice(arg0.offset, arg0.arg.length);
-          } else if (!kHintingEnabled && (escape == 1 || escape == 2)) {
+          } else if (!HINTING_ENABLED && (escape == 1 || escape == 2)) {
             charstring.push('drop', 'drop', 'drop', 'drop', 'drop', 'drop');
             continue;
           }
@@ -4416,7 +4412,7 @@ var Type1Parser = function type1Parser() {
             if (flexState > 1)
               continue; // ignoring rmoveto
             value = 5; // first segment replacing with rlineto
-          } else if (!kHintingEnabled && (value == 1 || value == 3)) {
+          } else if (!HINTING_ENABLED && (value == 1 || value == 3)) {
             charstring.push('drop', 'drop');
             continue;
           }
@@ -4508,7 +4504,7 @@ var Type1Parser = function type1Parser() {
   }
 
   this.extractFontProgram = function Type1Parser_extractFontProgram(stream) {
-    var eexec = decrypt(stream, kEexecEncryptionKey, 4);
+    var eexec = decrypt(stream, EEXEC_ENCRYPT_KEY, 4);
     var eexecStr = '';
     for (var i = 0, ii = eexec.length; i < ii; i++)
       eexecStr += String.fromCharCode(eexec[i]);
@@ -4548,7 +4544,7 @@ var Type1Parser = function type1Parser() {
         i++;
         var data = eexec.slice(i, i + length);
         var lenIV = program.properties.privateData['lenIV'];
-        var encoded = decrypt(data, kCharStringsEncryptionKey, lenIV);
+        var encoded = decrypt(data, CHAR_STRS_ENCRYPT_KEY, lenIV);
         var str = decodeCharString(encoded);
 
         if (glyphsSection) {
@@ -4588,7 +4584,7 @@ var Type1Parser = function type1Parser() {
                 getToken(); // read in 'RD'
                 var data = eexec.slice(i + 1, i + 1 + length);
                 var lenIV = program.properties.privateData['lenIV'];
-                var encoded = decrypt(data, kCharStringsEncryptionKey, lenIV);
+                var encoded = decrypt(data, CHAR_STRS_ENCRYPT_KEY, lenIV);
                 var str = decodeCharString(encoded);
                 i = i + 1 + length;
                 t = getToken(); // read in 'NP'
@@ -4864,7 +4860,7 @@ Type1Font.prototype = {
                                                             properties) {
     var charstrings = [];
     var i, length, glyphName;
-    var unusedUnicode = kCmapGlyphOffset;
+    var unusedUnicode = CMAP_GLYPH_OFFSET;
     for (i = 0, length = glyphs.length; i < length; i++) {
       var item = glyphs[i];
       var glyphName = item.glyph;
@@ -5189,7 +5185,7 @@ var CFFFont = (function CFFFontClosure() {
         unicodeUsed[code] = true;
       }
 
-      var nextUnusedUnicode = kCmapGlyphOffset;
+      var nextUnusedUnicode = CMAP_GLYPH_OFFSET;
       for (var j = 0, jj = unassignedUnicodeItems.length; j < jj; ++j) {
         var i = unassignedUnicodeItems[j];
         // giving unicode value anyway
diff --git a/web/viewer.js b/web/viewer.js
index ae6e85728..dc0a416d4 100644
--- a/web/viewer.js
+++ b/web/viewer.js
@@ -17,18 +17,19 @@
 
 'use strict';
 
-var kDefaultURL = 'compressed.tracemonkey-pldi-09.pdf';
-var kDefaultScale = 'auto';
-var kDefaultScaleDelta = 1.1;
-var kUnknownScale = 0;
-var kCacheSize = 20;
-var kCssUnits = 96.0 / 72.0;
-var kScrollbarPadding = 40;
-var kVerticalPadding = 5;
-var kMinScale = 0.25;
-var kMaxScale = 4.0;
-var kImageDirectory = './images/';
-var kSettingsMemory = 20;
+var DEFAULT_URL = 'compressed.tracemonkey-pldi-09.pdf';
+var DEFAULT_SCALE = 'auto';
+var DEFAULT_SCALE_DELTA = 1.1;
+var UNKNOWN_SCALE = 0;
+var CACHE_SIZE = 20;
+var CSS_UNITS = 96.0 / 72.0;
+var SCROLLBAR_PADDING = 40;
+var VERTICAL_PADDING = 5;
+var MIN_SCALE = 0.25;
+var MAX_SCALE = 4.0;
+var IMAGE_DIR = './images/';
+var SETTINGS_MEMORY = 20;
+var ANNOT_MIN_SIZE = 10;
 var RenderingStates = {
   INITIAL: 0,
   RUNNING: 1,
@@ -42,8 +43,6 @@ var FindStates = {
   FIND_PENDING: 3
 };
 
-var ANNOT_MIN_SIZE = 10;
-
 //#if (FIREFOX || MOZCENTRAL || B2G || GENERIC || CHROME)
 //PDFJS.workerSrc = '../build/pdf.js';
 //#endif
@@ -186,7 +185,7 @@ var Settings = (function SettingsClosure() {
       database = JSON.parse(database);
       if (!('files' in database))
         database.files = [];
-      if (database.files.length >= kSettingsMemory)
+      if (database.files.length >= SETTINGS_MEMORY)
         database.files.shift();
       var index;
       for (var i = 0, length = database.files.length; i < length; i++) {
@@ -228,7 +227,7 @@ var Settings = (function SettingsClosure() {
   return Settings;
 })();
 
-var cache = new Cache(kCacheSize);
+var cache = new Cache(CACHE_SIZE);
 var currentPageNumber = 1;
 
 var PDFFindController = {
@@ -676,7 +675,7 @@ var PDFFindBar = {
 var PDFView = {
   pages: [],
   thumbnails: [],
-  currentScale: kUnknownScale,
+  currentScale: UNKNOWN_SCALE,
   currentScaleValue: null,
   initialBookmark: document.location.hash.substring(1),
   startedTextExtraction: false,
@@ -742,7 +741,7 @@ var PDFView = {
 
     var pages = this.pages;
     for (var i = 0; i < pages.length; i++)
-      pages[i].update(val * kCssUnits);
+      pages[i].update(val * CSS_UNITS);
 
     if (!noScroll && this.currentScale != val)
       this.pages[this.page - 1].scrollIntoView();
@@ -772,10 +771,10 @@ var PDFView = {
       return;
     }
 
-    var pageWidthScale = (container.clientWidth - kScrollbarPadding) /
-                          currentPage.width * currentPage.scale / kCssUnits;
-    var pageHeightScale = (container.clientHeight - kVerticalPadding) /
-                           currentPage.height * currentPage.scale / kCssUnits;
+    var pageWidthScale = (container.clientWidth - SCROLLBAR_PADDING) /
+                          currentPage.width * currentPage.scale / CSS_UNITS;
+    var pageHeightScale = (container.clientHeight - VERTICAL_PADDING) /
+                           currentPage.height * currentPage.scale / CSS_UNITS;
     switch (value) {
       case 'page-actual':
         scale = 1;
@@ -799,14 +798,14 @@ var PDFView = {
   },
 
   zoomIn: function pdfViewZoomIn() {
-    var newScale = (this.currentScale * kDefaultScaleDelta).toFixed(2);
-    newScale = Math.min(kMaxScale, newScale);
+    var newScale = (this.currentScale * DEFAULT_SCALE_DELTA).toFixed(2);
+    newScale = Math.min(MAX_SCALE, newScale);
     this.parseScale(newScale, true);
   },
 
   zoomOut: function pdfViewZoomOut() {
-    var newScale = (this.currentScale / kDefaultScaleDelta).toFixed(2);
-    newScale = Math.max(kMinScale, newScale);
+    var newScale = (this.currentScale / DEFAULT_SCALE_DELTA).toFixed(2);
+    newScale = Math.max(MIN_SCALE, newScale);
     this.parseScale(newScale, true);
   },
 
@@ -1312,10 +1311,10 @@ var PDFView = {
       this.page = 1;
     }
 
-    if (PDFView.currentScale === kUnknownScale) {
+    if (PDFView.currentScale === UNKNOWN_SCALE) {
       // Scale was not initialized: invalid bookmark or scale was not specified.
       // Setting the default one.
-      this.parseScale(kDefaultScale, true);
+      this.parseScale(DEFAULT_SCALE, true);
     }
   },
 
@@ -1837,7 +1836,7 @@ var PageView = function pageView(container, pdfPage, id, scale,
       }
       var image = createElementWithStyle('img', item, rect);
       var iconName = item.name;
-      image.src = kImageDirectory + 'annotation-' +
+      image.src = IMAGE_DIR + 'annotation-' +
         iconName.toLowerCase() + '.svg';
       image.alt = mozL10n.get('text_annotation_type', {type: iconName},
         '[{{type}} Annotation]');
@@ -1941,10 +1940,10 @@ var PageView = function pageView(container, pdfPage, id, scale,
           y = dest[3];
           width = dest[4] - x;
           height = dest[5] - y;
-          widthScale = (this.container.clientWidth - kScrollbarPadding) /
-            width / kCssUnits;
-          heightScale = (this.container.clientHeight - kScrollbarPadding) /
-            height / kCssUnits;
+          widthScale = (this.container.clientWidth - SCROLLBAR_PADDING) /
+            width / CSS_UNITS;
+          heightScale = (this.container.clientHeight - SCROLLBAR_PADDING) /
+            height / CSS_UNITS;
           scale = Math.min(widthScale, heightScale);
           break;
         default:
@@ -1953,8 +1952,8 @@ var PageView = function pageView(container, pdfPage, id, scale,
 
       if (scale && scale !== PDFView.currentScale)
         PDFView.parseScale(scale, true, true);
-      else if (PDFView.currentScale === kUnknownScale)
-        PDFView.parseScale(kDefaultScale, true, true);
+      else if (PDFView.currentScale === UNKNOWN_SCALE)
+        PDFView.parseScale(DEFAULT_SCALE, true, true);
 
       var boundingRect = [
         this.viewport.convertToViewportPoint(x, y),
@@ -2432,9 +2431,9 @@ var TextLayerBuilder = function textLayerBuilder(textLayerDiv, pageIdx) {
   this.setupRenderLayoutTimer = function textLayerSetupRenderLayoutTimer() {
     // Schedule renderLayout() if user has been scrolling, otherwise
     // run it right away
-    var kRenderDelay = 200; // in ms
+    var RENDER_DELAY = 200; // in ms
     var self = this;
-    if (Date.now() - PDFView.lastScroll > kRenderDelay) {
+    if (Date.now() - PDFView.lastScroll > RENDER_DELAY) {
       // Render right away
       this.renderLayer();
     } else {
@@ -2443,7 +2442,7 @@ var TextLayerBuilder = function textLayerBuilder(textLayerDiv, pageIdx) {
         clearTimeout(this.renderTimer);
       this.renderTimer = setTimeout(function() {
         self.setupRenderLayoutTimer();
-      }, kRenderDelay);
+      }, RENDER_DELAY);
     }
   };
 
@@ -2693,7 +2692,7 @@ document.addEventListener('DOMContentLoaded', function webViewerLoad(evt) {
   var params = PDFView.parseQueryString(document.location.search.substring(1));
 
 //#if !(FIREFOX || MOZCENTRAL)
-  var file = params.file || kDefaultURL;
+  var file = params.file || DEFAULT_URL;
 //#else
 //var file = window.location.toString()
 //#endif
@@ -3105,7 +3104,7 @@ window.addEventListener('keydown', function keydown(evt) {
         handled = true;
         break;
       case 48: // '0'
-        PDFView.parseScale(kDefaultScale, true);
+        PDFView.parseScale(DEFAULT_SCALE, true);
         handled = true;
         break;
     }