From: http://www.mac52ipod.cn/post/paintbrush-Mac-OS-X-Windows-HuaTu.php
PC users may often use the built-in picture board for simple image processing. The preview of Mac OS X on the Apple computer can only add some notes or something. iPhoto focuses on image management, exposure, color order, and other adjustments; photoshop? Boss, I will simply change the picture! Today, we will introduce a free software for Mac OS X on an Apple Computer, similar to a Windows graphic Board: paintbrush.
Paintbrush Interface
The button layout and functions of paintbrush are very similar to those of windows. Pay attention to the mine button! His role is to clear the entire screen --- Yes, blow it to the whiteboard --- I have already done it. Fortunately, the shortcut key for regretting the operation is the same as the default "back" Key of the system: "cmd + z ". After installation, you can right-click the open mode menu to open this item with paintbrush.
In addition, Paintbrush features such as image scaling, limited size (accurate to 1 pixel), and saving conversion formats are available for Windows Microsoft plotting. You can find the options on the menu bar, the size selection page is displayed. Paintbrush's button window and image editing window can be separated, which is good.
Paintbrush free http://mac.brothersoft.com/paintbrush.html for Mac OS X systems similar to Windows Graphics boards