update demo jpg

README.md

@@ -5,9 +5,75 @@ EvaCloudImage is a url based image transformation php library.
 
 EvaCloudImage allow you to easily transform your images to any required dimension. EvaCloudImage support optimizing, resizing or cropping the images by just change few url letters.
 
+Shadow Pretect
+--------------
+
+Sometimes we don't want to expose images source url, EvaCloudImage allow you create shadow image to pretect source file:
+
+ - Image source file : [http://evacloudimage.avnpc.com/upload/demo.jpg](http://evacloudimage.avnpc.com/upload/demo.jpg)
+ - Shadow image : [http://evacloudimage.avnpc.com/thumb/demo.jpg](http://evacloudimage.avnpc.com/thumb/demo.jpg), use this url in your website, visitor will not know source file url.
+
 Resize Dimensions
 -----------------
 
+Here is the [original image](http://evacloudimage.avnpc.com/upload/demo.jpg): 
+
+    http://evacloudimage.avnpc.com/upload/demo.jpg
+
+EvaCloudImage could resize the image by simply passing in the width and height parameters in URL. 
+
+###Resize by width:
+
+The following URL points to a 300px width dynamically created image, pass the '*w*' parameter by '*w_300*':
+
+    http://evacloudimage.avnpc.com/thumb/demo,w_300.jpg
+
+![EvaCloudImage Resized Image](http://evacloudimage.avnpc.com/thumb/demo,w_300.jpg)
+
+###Resize by height:
+
+The following URL points to a 200px height dynamically created image, pass the '*h*' parameter by '*h_200*':
+
+    http://evacloudimage.avnpc.com/thumb/demo,h_200.jpg
+
+![EvaCloudImage Resized Image](http://evacloudimage.avnpc.com/thumb/demo,h_200.jpg)
+
+###Resize by percent:
+
+By passing integer values for resizing images by fixed width and height. You can also change the dimension of an image using percents. 
+
+For example, resizing the demo image to *40%* of its original size is done by setting the '*width*' parameter to *0.4*:
+
+    http://evacloudimage.avnpc.com/thumb/demo,w_0.4.jpg
+
+![EvaCloudImage Resized Image](http://evacloudimage.avnpc.com/thumb/demo,w_0.4.jpg)
+
+Rotate
+-----------------
+
+The rotate parameter is '*r*' for rotate images, by passing an integer value could rotate image clockwise:
+
+For example, rotate the demo image by 90 degress clockwise by setting the '*r*' parameter to *90*:
+
+    http://evacloudimage.avnpc.com/thumb/demo,h_200,r_90.jpg
+
+![EvaCloudImage Resized Image](http://evacloudimage.avnpc.com/thumb/demo,h_200,r_90.jpg)
+
+
+JPG Quality
+-----------------
+
+The quality parameter is '*q*' for changing compression quality, default quality is 80:
+
+    http://evacloudimage.avnpc.com/thumb/demo,h_200,q_30.jpg
+
+![EvaCloudImage Resized Image](http://evacloudimage.avnpc.com/thumb/demo,h_200,q_30.jpg)
+
+Caching
+-------
+
+
+
 
 Installation
 ------------