如果用户已经通过我的iPad应用程序下载了pdf, 并选择在iBooks(通过应用程序中的一个手动按钮)打开它, 是否有办法我可以在程序上删除或更新 iBooks 中的 pdf?
不,你无法从ibook上获取任何信息,因为它以沙箱模式出现。
我相信你要找的就是右上角的编辑按钮
然后选择要删除的内容,然后按下删除按钮。
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