绿色 word转pdf-如何在不借助工具的情况下把WORD转成PDF?

可以，上adobe网站就能实现了。
https://createpdf.adobe.com/
先注册一个帐号。然后按照抄作一步一步来就行了。
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哪用什么软件，系统本身就有这个功能。
桌面右键－属性－外观－高级，打开下面的“项目”下拉列表，选择“窗口”，设置右边的颜色为你需要的颜色，确定。然后单击显示属性对话框的“应用”，等一会系统就设置好了。这种方式可以将所有窗口的背景都变成自己需要的颜色。