1、先签个大名
真的需要签一个较大的名，并最好使用Marker(马克笔)写，让名字的线条更清晰可见。
2、拍下你的签名
用相机把你的签名拍下，尽量避免有镜头变形(尽量使用长焦镜拍摄)。
3、使用Photoshop预处理
使用Photoshop，调较对比，让黑色签名突显出来。
4、把黑色签名从白底分离出来
使用Magic Wand tool点选白底的部份。如果你签名的文字里有白色空间(例如"O"字中间的白色位置)，可以按shift然后点选。
5、反选得签名
按Select>Inverse进行反选，这样就会变成全选黑色签名部份。点选后按Ctrl+C复制签名。
6、制造透明背景
在没有关闭原档案的情况下开新档案，然后把"Background Contents"设定为"Transparent"。在新档案里贴上签名。
7、储存成签名档的格式
按File>Save For Web，点选transparency及把档案储存为PNG-8。
8、完成了。把你的签名档贴上作品吧。
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