在iPhone SDK中对PDF进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.我阅读了iPhone参考资料库中的Quartz 2d指南.关于"pdf运算符"的说法已经很多.通过使用它们，可以通过使用回调来完成所有工作.

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.但这非常庞大.谁能给我一个关于这些运算符是什么的想法(或如何研究它们的想法)，以及我将需要哪些运算符来进行搜索pdf中的字符串功能"?

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

我一直在寻找相同的东西，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

看起来像运算符是"TJ"和"Tj".

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

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