iPad 有什么方法快速在当前屏幕上做标记 画线吗？ 我是要把当前屏幕上的内容要做标记截图发送给别 ipad怎么在PDF上写字,标记 有什么软件吗?

ipad,\u5982\u4f55\u5728ibook\u4e0a\u505a\u7b14\u8bb0\u548c\u6807\u8bb0\uff1f\uff1f\uff1f

\u8981\u7528iTunes U

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用QQ发图片的时候能编辑然后画线，或者美图秀秀马赛克找个花纹图案然后最细的状态也能充当画线的作用，最方便的还是直接QQ发图的时候编辑画线吧

可以先截图再用图像编辑软件做你要的标记

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