diff --git a/docs/proto_v3.html b/docs/proto_v3.html
index efd5a09..082151e 100644
--- a/docs/proto_v3.html
+++ b/docs/proto_v3.html
@@ -6,7 +6,7 @@
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <link rel="stylesheet" href="style.css">
-    <title>Protocol Version 2</title>
+    <title>Protocol Version 3</title>
 </head>
 
 <body>
@@ -91,16 +91,16 @@ <h2 id="supported-methods">Supported Methods</h2>
             some newly added methods.<br>
             Encoding of lengths, text, file names, file contents, and images and the maximum allowed text lengths, file
             name lengths, file sizes, and image sizes are identical to those of <a
-                href="proto_v2.html#encoding-notes">Version 2</a>.
+                href="proto_v1.html#encoding-notes">Version 1 and 2</a>.
         </p>
 
         <h3 id="get-text">Get Text</h3>
         <p>
-            This method is identical to the <a href="proto_v2.html#get-text">Get Text method of Version 2</a>.
+            This method is identical to the <a href="proto_v1.html#get-text">Get Text method of Version 1 and 2</a>.
         </p>
         <h3 id="send-text">Send Text</h3>
         <p>
-            This method is identical to the <a href="proto_v2.html#send-text">Send Text method of Version 2</a>.
+            This method is identical to the <a href="proto_v1.html#send-text">Send Text method of Version 1 and 2</a>.
         </p>
         </p>
         <h3 id="get-files">Get Files</h3>
@@ -127,8 +127,37 @@ <h3 id="send-files">Send Files</h3>
         </p>
         <h3 id="get-image">Get Image/Screenshot</h3>
         <p>
-            This method is identical to the <a href="proto_v2.html#get-image">Get Image method of Version 2</a>.
+            This method is identical to the <a href="proto_v1.html#get-image">Get Image method of Version 1 and 2</a>.
         </p>
+        <h3 id="get-image-only">Get Image Only</h3>
+        <p>
+            This method is similar to the <a href="#get-image">Get Image/Screenshot</a> method, except that if there is
+            no image copied to the clipboard, the server will not send a screenshot as the image. Instead, the server
+            will respond with the status NO_DATA and terminate the connection.
+        </p>
+        <h3 id="get-screenshot-only">Get Screenshot Only</h3>
+        <p>
+            This method is used to get a screenshot from the server to the client. Even if the server has an image
+            copied to the clipboard, it will send only a screenshot of the server device. The screenshot is encoded as a
+            PNG image. Once the client requests this method code along with the display number from the server, the
+            server acknowledges the client with the status OK. Then, the server will send the screenshot. The
+            communication after protocol version negotiation happens as follows.<br>
+        <ul>
+            <li>First, the client sends the method request code.</li>
+            <li>Next, the client sends the display number to get the screenshot. The display number can be from 1 to
+                65536 inclusive. Also, the display number can be sent as -1 to let the server use its default display.
+            </li>
+            <li>The server responds with the status OK.</li>
+            <li>Then, the size of the screenshot image in bytes is sent. The image can be at most 1 GiB in size. It is
+                encoded as a numeric value, as specified in <a href="proto_v1.html#encoding-notes">data encoding
+                    notes</a>.</li>
+            <li>Finally, the screenshot is sent as a stream of bytes, as specified in <a
+                    href="proto_v1.html#encoding-notes">data encoding notes</a>.</li>
+        </ul>
+        Once the image is transmitted, the communication ends, and the connection can be closed. Note that the server
+        may not always honor the display number sent by the client. Also note that if the display number is invalid or
+        the server fails to get the screenshot, the server may respond with the status NO_DATA instead of OK and
+        terminate the communication immediately.
         <h3 id="info">Info</h3>
         <p>
             This method is similar to the <a href="proto_v2.html#info">Info method of Version 2</a> with the exception
