Update documentation.

diff --git a/src/stream.js b/src/stream.js
index 69f792b581f43f752273de6f717ef9498eafa92c..c7b5c81211dd5537b854cdb5ee1115f9bad232ba 100644 (file)
--- a/src/stream.js
+++ b/src/stream.js
@@ -756,8 +756,13 @@ var PredictorStream = (function predictorStream() {
   return constructor;
 })();
 
-// A JpegStream can't be read directly. We use the platform to render
-// the underlying JPEG data for us.
+/**
+ * Depending on the type of JPEG a JpegStream is handled in different ways. For
+ * JPEG's that are supported natively such as DeviceGray and DeviceRGB the image
+ * data is stored and then loaded by the browser.  For unsupported JPEG's we use
+ * a library to decode these images and the stream behaves like all the other
+ * DecodeStreams.
+ */
 var JpegStream = (function jpegStream() {
   function isAdobeImage(bytes) {
     var maxBytesScanned = Math.max(bytes.length - 16, 1024);