在iphone应用程序中编辑PDF [英] Edit PDF in iphone application

问题描述

现在我正在创建一个类似' iAnnotate PDF '的应用程序
直到现在我已经完成了在UIView中阅读和显示pdf页面。
即使我获得TOC也是成功的。

现在我想编辑PDF，编辑包括标记，高亮和书写笔记。

现在我的问题是怎么编辑？我的意思是我们需要创建另一个pdf并用新的更改写它吗？

或者我们有什么方法可以更新现有pdf中的单页？
如果是，如何完成？

如果我们重写整个pdf，那会不会产生开销？

Now I am creating an application that works like 'iAnnotate PDF' Till now I have completed reading and displaying pdf pages in UIView. Even I am sucessful in getting TOC.

Now I want to edit PDFs, Editing includes marker, highlights and writing notes.

Now my question is how to edit? I mean do we need to create another pdf and over write it with new changes?

Or there is any way we can update single page in existing pdfs?? If yes how is that done?

If we are rewriting the entire pdf, wont that be creating overhead?

解决方案

Maybe this idea can work in iPhone I think there is no directly way we can edit a PDF but what we can do we can produce such functionality that iAnnotate app have i.e. drawing line and text and then just save the PDF as a picture page by page in which you will include the edited page too and then you will create the PDF again by images then I think so you will get the edited PDF.

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