Style nits.

src/core.js

@@ -647,7 +647,7 @@ var PDFDoc = (function PDFDocClosure() {
               buf[j + 1] = data[i + 1];
               buf[j + 2] = data[i + 2];
             }
-          } else if(components == 1) {
+          } else if (components == 1) {
             for (var i = 0, j = 0; i < rgbaLength; i += 4, j++) {
               buf[j] = data[i];
             }

src/util.js

@@ -220,8 +220,8 @@ var Promise = (function PromiseClosure() {
   /**
    * Builds a promise that is resolved when all the passed in promises are
    * resolved.
-   * @param Array promises
+   * @param {Promise[]} promises Array of promises to wait for.
-   * @return Promise
+   * @return {Promise} New dependant promise.
    */
   Promise.all = function(promises) {
     var deferred = new Promise();

src/worker.js

@@ -25,7 +25,7 @@ Message.prototype = {
     this.messager = messager;
     this.id = id;
   }
-}
+};
 
 function MessageHandler(name, comObj) {
   this.name = name;