1.安装GraphicsMagick 下载地址:http://sourceforge.net/projects/graphicsmagick/files/graphicsmagick/1.3.19/GraphicsMagick-1.3.19.tar.gz/download?use_mirror=ncu tar zxvf GraphicsMagick-.tar.gz cd GraphicsMagick- make make install 安装依赖包Ghostscript,不安装的话加水印会找不到