在 iphone sdk 的 PDF 中执行搜索功能需要哪些 pdf 运算符? [英] Which are the pdf operators needed to do a search feature in a PDF in iphone sdk?

问题描述

我一直在尝试在 PDF 应用程序中执行搜索功能.我在 iphone 参考库中阅读了 Quartz 2d 指南.关于pdf 运算符"已经说了很多.通过使用它们，一切都完成了，通过为它们使用回调.

I have a been trying to do a search feature in a PDF application. I read the Quartz 2d guide in iphone reference library. And so much has been said about the "pdf operators". It's by using them that everything is done, by using call-backs for them.

有关 pdf 运算符的信息，我们应该阅读 adobe 的 pdf 参考.但它非常广阔.任何人都可以告诉我这些运算符是什么(或如何在研究它们时获得想法)以及我将需要哪些运算符来在 pdf 中搜索字符串功能"?

For info about pdf operators, we should read pdf reference of adobe. But it's very vast. Can anyone give me an idea of what these operators are (OR how to get an idea in studying them) and which of them I will require for my "search a string feature in pdf"?

推荐答案

我一直在寻找同样的东西，今天我发现这篇帖子有一些线索:

I've been searching for the same thing and today I found this post that has some clues:

http://www.random-ideas.net/posts/42

看起来运算符是TJ"和Tj".

Looks like the operators are "TJ" and "Tj".

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