从.PDF文件提取数据 | PDF文件提取数据

本文介绍了从.PDF文件提取数据的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我需要从.PDF文件中提取数据，并将其加载到SQL 2008
任何一个可以告诉我如何着手？

I need to extract data from .PDF files and load it in to SQL 2008.Can any one tell me how to proceed??

推荐答案

下面是如何使用iTextSharp的从PDF提取文本数据的示例。你必须与它的一些捣鼓让它做你想要什么，我认为这是一个很好的轮廓。你可以看到StringBuilder中被用于存储文本，但你可以很容易地改变使用SQL。

Here is an example of how to use iTextSharp to extract text data from a PDF. You'll have to fiddle with it some to make it do exactly what you want, I think it's a good outline. You can see how the StringBuilder is being used to store the text, but you could easily change that to use SQL.

    static void Main(string[] args)
    {
        PdfReader reader = new PdfReader(@"c:\test.pdf");

        StringBuilder builder = new StringBuilder();

        for (int x = 1; x <= reader.NumberOfPages; x++)
        {
            PdfDictionary page = reader.GetPageN(x);
            IRenderListener listener = new SBTextRenderer(builder);
            PdfContentStreamProcessor processor = new PdfContentStreamProcessor(listener);
            PdfDictionary pageDic = reader.GetPageN(x);
            PdfDictionary resourcesDic = pageDic.GetAsDict(PdfName.RESOURCES);
            processor.ProcessContent(ContentByteUtils.GetContentBytesForPage(reader, x), resourcesDic);
        }
    }

public class SBTextRenderer : IRenderListener
{

    private StringBuilder _builder;
    public SBTextRenderer(StringBuilder builder)
    {
        _builder = builder;
    }
    #region IRenderListener Members

    public void BeginTextBlock()
    {
    }

    public void EndTextBlock()
    {
    }

    public void RenderImage(ImageRenderInfo renderInfo)
    {
    }

    public void RenderText(TextRenderInfo renderInfo)
    {
        _builder.Append(renderInfo.GetText());
    }

    #endregion
}

这篇关于从.PDF文件提取数据的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！