阅读PDF批注与iText的 [英] Reading PDF Annotations with iText

问题描述

我试图让PDF注释字符串的内容，所以我可以存储在搜索目的的数据库信息。

I trying to get the contents of a PDF annotation to string so I can store that information in a database for searching purposes.

有谁知道如何做到这一点利用iText / iTextSharp的？

Does anyone know how to accomplish this using iText/iTextSharp?

推荐答案

是的，但具体细节真的取决于什么样的[S]你在谈论的注解

Yes, but the specifics really depend on what kind[s] of annotations you're talking about.

在一般的：

PdfDictionary pageDict = myPdfReader.getPageN(firstPageIsOne);

PdfArray annotArray = pageDict.getAsArray(PdfName.ANNOTS);

for (int i = 0; i < annotArray.size(); ++i) {
  PdfDictionary curAnnot = annotArray.getAsDict(i);

  int someType = myCodeToGetAnAnnotsType(curAnnot);
  if (someType == THIS_TYPE) {
    writeThisType(curAnnot);
  } else if (someType == THAT_TYPE) {
    writeThatType(curAnnot);
  }
}

有关详细信息，你需要检查< A HREF =http://www.adobe.com/content/dam/Adobe/en/devnet/pdf/pdfs/PDF32000_2008.pdf相对=nofollow> PDF规格，特别注释说明：章12.5.6注释类型

For details, you'll need to examine the PDF Specification, in particular the annotation descriptions: "Chapter 12.5.6 Annotation Types".

如果你能告诉我们你关心，我可以有更多的帮助是什么类型

If you can tell us what types you care about, I can be of more help.

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