blocks|key|1025932|text|不确定它是否支持您需要的功能，但我们已经成功地使用了abcPDF。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1025933|entityMap|0|LINK|mutability|MUTABLE|url|http://www.websupergoo.com/products.htm#pd^0|Q|6|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Not sure if it supports the functionality you need, but we've been using <a href="http://www.websupergoo.com/products.htm#pd" rel="nofollow noreferrer">abcPDF</a> with some success.

blocks|key|316544|text|关于xactpro的PDF+File+Parser文章似乎正是您所需要的。它解释了PDF的格式，并附带了解析器的完整源代码(以及用于模型可视化的另一个项目)。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|316545|解析器使用特定于格式的术语，但您可以很容易地使用可视化工具来了解要查找的内容。|316546|entityMap|0|LINK|mutability|MUTABLE|url|http://www.xtractpro.com/articles/PDF-File-Parser.aspx^0|A|F|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

The <a href="http://www.xtractpro.com/articles/PDF-File-Parser.aspx" rel="noreferrer">PDF File Parser</a> article on xactpro seems to be exactly what you need. It explains the format of the PDF and comes with full source code for a parser (and another project for visualisation of the model).

The parser uses format-specific terms, but you could easily use the visualiser to learn what to look for.

blocks|key|4381768|text|你也可以看看Xpdf+(http://www.foolabs.com/xpdf/download.html)|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4381769|entityMap|0|LINK|mutability|MUTABLE|url|http://www.foolabs.com/xpdf/download.html^0|C|15|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

You can also take a look at Xpdf (<a href="http://www.foolabs.com/xpdf/download.html" rel="nofollow noreferrer">http://www.foolabs.com/xpdf/download.html</a>)

blocks|key|316613|text|查看pdfbox|type|unstyled|depth|inlineStyleRanges|entityRanges|data|316614|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

blocks|key|3534477|text|我不知道这些PDF解析器的所有功能，但Aspose有一个相当全面的功能。不幸的是，我们确实遇到了两个bug，我已经等了很长时间才能修复它们。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3534478|ITextSharp似乎是.Net最常见的开源解析器。|3534479|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I don't know all the features of these PDF parsers, but Aspose has a pretty comprehensive one. We did, unfortunately, come across two bugs, and I've been waiting a long time for them to be fixed.

ITextSharp seems to be the most common open source PDF parser for .Net.

blocks|key|4381850|text|abcPDF确实允许您提取注释，它们在帮助中有一个非常好的部分，但处理它的代码通常是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4381851|++++for+(int+objectIndex+=+0;+objectIndex+<+theDoc.ObjectSoup.Count;+objectIndex%2B%2B)
++++++++{
++++++++++++try
++++++++++++{
++++++++++++++++IndirectObject+element+=+theDoc.ObjectSoup.ElementAt(objectIndex);

++++++++++++++++string+elementType+=+element.GetType().ToString();
++++++++++++++++switch+(elementType)
++++++++++++++++{
++++++++++++++++++++case+"WebSupergoo.ABCpdf8.Objects.Annotation":
+++++++++++++++++++++++//process+the+annotation,+which+could+be+all+kinds+of+stuff
++++++++++++++++++++++++WebSupergoo.ABCpdf8.Objects.Annotation+annotation+=+(WebSupergoo.ABCpdf8.Objects.Annotation)element;+

++++++++++++++++++++++++ProcessAnnotation(annotation);|code-block|syntax|javascript|4381852|..。|4381853|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

abcPDF does let you extract annotations, they have a very good section in the help for it, but the code to handle it is generally : 

<pre><code> for (int objectIndex = 0; objectIndex &lt; theDoc.ObjectSoup.Count; objectIndex++)
 {
 try
 {
 IndirectObject element = theDoc.ObjectSoup.ElementAt(objectIndex);

 string elementType = element.GetType().ToString();
 switch (elementType)
 {
 case "WebSupergoo.ABCpdf8.Objects.Annotation":
 //process the annotation, which could be all kinds of stuff
 WebSupergoo.ABCpdf8.Objects.Annotation annotation = (WebSupergoo.ABCpdf8.Objects.Annotation)element; 

 ProcessAnnotation(annotation);
</code></pre>

...

Does anyone know of a PDF file parser that I could use to pull out sections of text from the plaintext pdf file? Specifially I want a way to be able to reliably pull out the section of text specific to annotations?

Delphi, C# RegEx I dont mind.

Looking for a PDF file parser

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

有没有人知道一个PDF文件解析器，我可以用它来从纯文本pdf文件中提取部分文本？具体地说，我希望有一种方法能够可靠地拉出特定于注释的文本部分。Delphi，C# RegEx我不介意。

问寻找PDF文件解析器
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问寻找PDF文件解析器EN