jacky
1、用WPS打开PDF文档，然来自后点击进入缩略图页面。
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2、进入缩略图页面后，按病住Shift键全选所有缩略图。
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3、全选之后，点击工具栏伤形中的顺时针或者渗迹逆时针妈乙乐温革都是旋转90度的。
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4、旋转好之后，点击PDF文件中的另存为就可以了。
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