将PDF文件转换为TEXT文件 [英] Convert PDF file to TEXT file

问题描述

我想将PDF文件转换为TEXT文件.

这是我的代码:

Hi,
I want to convert PDF file to TEXT file.

This is my code:

String tempFolderPath = Path.GetTempPath();
                       StreamWriter writeTextFile = File.CreateText(tempFolderPath + "content.txt");
            writeTextFile.WriteLine(TransformPdfToText(tempFolderPath + "coalmar100604.pdf"));
            writeTextFile.Close();
 

private static string TransformPdfToText(string SourceFile)
        {
            string content = "";
            PDDocument doc = PDDocument.load(SourceFile);
            PDFTextStripper stripper = new PDFTextStripper();
         
            try
            {
                content = stripper.getText(doc);

                doc.close();
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            finally
            {
                doc.close();
            }
            return content;
        }

粗体中的行显示错误:: 对象引用未设置为对象的实例.

the line in bold shows an error:: Object reference not set to an instance of an object.

推荐答案

Shruti Gargate写道:

Shruti Gargate wrote:

writeTextFile.WriteLine(TransformPdfToText(tempFolderPath +"coalmar100604.pdf"));

writeTextFile.WriteLine(TransformPdfToText(tempFolderPath + "coalmar100604.pdf"));

在上面提到的行中的代码中放置一个调试点，以查看pdf文件是否在tempFolderPath位置.

Put a debug point in the code at the line mentioned above to see if the pdf file exists at the tempFolderPath location.

当您调试并到达该行时，是否检查了剥离程序和doc ?

它们中的一个都为空吗?那是我唯一想到的就是问题.

When you debug and get to that line, have you checked stripper and doc?

Are either of them null? That would be the only thing that I could think of that would be the problem.

不，我没有检查汽提塔和doc都不为空


这是该pdf文件的链接.我想读取这些值.
我已将此pdf文件保存在指定位置.我可以从链接中获取价值吗?

http://tonto.eia.doe.gov/FTPROOT/coal/newsmarket/coalmar100611.pdf">


预先谢谢您.

No i have checked both the stripper and doc both are not null


This is the link of that pdf file. I want to read that values.
I have saved this pdf file on specified location. Can i get the value from the link?

http://tonto.eia.doe.gov/FTPROOT/coal/newsmarket/coalmar100611.pdf">


Thank you in advance.

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