diff --git a/README.md b/README.md
index e73fe31..7170e0a 100644
--- a/README.md
+++ b/README.md
@@ -57,7 +57,9 @@ GCC
 brew install go
 ```
 
-Xcode Command Line Tools (And Privacy setting: [#277](https://github.com/go-vgo/robotgo/issues/277))
+Xcode Command Line Tools; <br>
+And Privacy setting, add Screen Recording and Accessibility under: <br>
+`System Settings > Privacy & Security > Accessibility, Screen & System Audio Recording`.
 
 ```
 xcode-select --install
@@ -89,11 +91,9 @@ X11 with the XTest extension (the Xtst library)
 
 "Clipboard": xsel xclip
 
-
 "Bitmap": libpng (Just used by the "bitmap".)
 
 "Event-Gohook": xcb, xkb, libxkbcommon (Just used by the "hook".)
-
 ```
 
 ##### Ubuntu:
@@ -111,13 +111,11 @@ sudo apt install libx11-dev xorg-dev libxtst-dev
 # Clipboard
 sudo apt install xsel xclip
 
-#
 # Bitmap
 sudo apt install libpng++-dev
 
 # GoHook
 sudo apt install xcb libxcb-xkb-dev x11-xkb-utils libx11-xcb-dev libxkbcommon-x11-dev libxkbcommon-dev
-
 ```
 
 ##### Fedora:
@@ -129,13 +127,11 @@ sudo dnf install libXtst-devel
 # Clipboard
 sudo dnf install xsel xclip
 
-#
 # Bitmap
 sudo dnf install libpng-devel
 
 # GoHook
 sudo dnf install libxkbcommon-devel libxkbcommon-x11-devel xorg-x11-xkb-utils-devel
-
 ```
 
 ## Installation:
diff --git a/doc.go b/doc.go
index e2b57bb..6457c8d 100644
--- a/doc.go
+++ b/doc.go
@@ -1,5 +1,6 @@
-// Copyright 2016 The go-vgo Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
+// Copyright (c) 2016-2025 AtomAI, All rights reserved.
+//
+// See the COPYRIGHT file at the top-level directory of this distribution and at
 // https://github.com/go-vgo/robotgo/blob/master/LICENSE
 //
 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
@@ -117,3 +118,27 @@ Keys are supported:
 	"lights_kbd_up"		 Turn up keyboard backlight brightness		No Windows support
 	"lights_kbd_down"	 Turn down keyboard backlight brightness	No Windows support
 */
+
+/*
+## Type Conversion
+
+|     | type conversion	    |  func
+|-----|---------------------|----------------------
+|	*	| robotgo.Bitmap -> robotgo.CBitmap | robotgo.ToCBitmap()
+|		| robotgo.Bitmap -> *image.RGBA | robotgo.ToRGBAGo()
+|	*	| robotgo.CBitmap -> C.MMBitmapRef | robotgo.ToMMBitmapRef()
+|		| robotgo.CBitmap -> robotgo.Bitmap | robotgo.ToBitmap()
+|		| robotgo.CBitmap -> image.Image | robotgo.ToImage()
+|		| robotgo.CBitmap -> *image.RGBA | robotgo.ToRGBA()
+|	*	| C.MMBitmapRef -> robotgo.CBitmap | robotgo.CBitmap()
+|	*	| image.Image -> robotgo.Bitmap | robotgo.ImgToBitmap()
+|		| image.Image -> robotgo.CBitmap | robotgo.ImgToCBitmap()
+|		| image.Image -> []byte | robotgo.ToByteImg()
+|		| image.Image -> string | robotgo.ToStringImg()
+|	*	| *image.RGBA -> robotgo.Bitmap | robotgo.RGBAToBitmap()
+|	*	| []byte -> image.Image | robotgo.ByteToImg()
+|		| []byte-> robotgo.CBitmap | robotgo.ByteToCBitmap()
+|		| []byte -> string | string()
+|	*	| string -> image.Image | robotgo.StrToImg()
+|		| string -> byte | []byte()
+*/