提取属性 / 元数据

The Documentize PDF Extractor for .NET 简化了从 PDF 文档中提取元数据的过程。
可供您使用的属性包括：标题、作者、主题、关键字、页数。

How to Extract Metadata from PDF file

示例演示了如何从 PDF 文件中提取属性（标题、作者、主题、关键字、页数）。
要从 PDF 文档中提取元数据，请按照以下步骤操作：

  1. 创建 ExtractPropertiesOptions 实例以配置提取选项和输入 PDF 文件。
  2. 调用 PdfExtractor 的 Extract 方法进行提取。
  3. 使用 PdfProperties 访问提取的属性。
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1// Create ExtractPropertiesOptions object to set input file
2var options = new ExtractPropertiesOptions("path_to_your_pdf_file.pdf");
3// Perform the process and get Properties
4var pdfProperties = PdfExtractor.Extract(options);
5var title = pdfProperties.Title;
6var author = pdfProperties.Author;
7var subject = pdfProperties.Subject;
8var keywords = pdfProperties.Keywords;
9var numberOfPages = pdfProperties.NumberOfPages;

How to Extract Metadata from PDF stream

您可以自行决定如何打开流。

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 1// Create ExtractPropertiesOptions object to set input stream
 2var stream = File.OpenRead("path_to_your_pdf_file.pdf");
 3var options = new ExtractPropertiesOptions(stream);
 4// Perform the process and get Properties
 5var pdfProperties = PdfExtractor.Extract(options);
 6var title = pdfProperties.Title;
 7var author = pdfProperties.Author;
 8var subject = pdfProperties.Subject;
 9var keywords = pdfProperties.Keywords;
10var numberOfPages = pdfProperties.NumberOfPages;

How to Extract Metadata from PDF file in the shortest possible style

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1// Perform the process and get Properties
2var pdfProperties = PdfExtractor.Extract(new ExtractPropertiesOptions("path_to_your_pdf_file.pdf"));

Key Features:

  • Available metadata: Title, Author, Subject, Keywords, Number of Pages.
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