PDF to Text / .NET Examples

This page contains various examples of using the PDF to Text API in .NET. The examples are complete and fully functional. Read more about how to convert PDF to Text in .NET.

Basic examples
ASP.NET Web Forms examples

Basic examples

PDF file to text file

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // Create an API client instance.
            pdfcrowd.PdfToTextClient client =
                new pdfcrowd.PdfToTextClient("demo", "ce544b6ea52a5621fb9d55f8b542d14d");

            // Run the conversion and save the result to a file.
            client.convertFileToFile("/path/to/invoice.pdf", "invoice.txt");
        }
        catch(pdfcrowd.Error why)
        {
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);
            throw;
        }
    }
}

PDF file to in-memory text

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // Create an API client instance.
            pdfcrowd.PdfToTextClient client =
                new pdfcrowd.PdfToTextClient("demo", "ce544b6ea52a5621fb9d55f8b542d14d");

            // Run the conversion and store the result in the `txt` variable.
            byte[] txt = client.convertFile("/path/to/invoice.pdf");

            // at this point the "txt" variable contains TXT raw data and
            // can be sent in an HTTP response, saved to a file, etc.
        }
        catch(pdfcrowd.Error why)
        {
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);
            throw;
        }
    }
}

PDF file to text stream

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // Create an API client instance.
            pdfcrowd.PdfToTextClient client =
                new pdfcrowd.PdfToTextClient("demo", "ce544b6ea52a5621fb9d55f8b542d14d");

            // Create an output stream for the conversion result
            FileStream outputStream = new FileStream("invoice.txt", FileMode.CreateNew);

            // run the conversion and write the result to the output stream.
            client.convertFileToStream("/path/to/invoice.pdf", outputStream);

            // Close the output stream.
            outputStream.Close();
        }
        catch(pdfcrowd.Error why)
        {
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);
            throw;
        }
    }
}

PDF url to text file

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // Create an API client instance.
            pdfcrowd.PdfToTextClient client =
                new pdfcrowd.PdfToTextClient("demo", "ce544b6ea52a5621fb9d55f8b542d14d");

            // Run the conversion and save the result to a file.
            client.convertUrlToFile("https://pdfcrowd.com/static/pdf/apisamples/invoice.pdf", "invoice.txt");
        }
        catch(pdfcrowd.Error why)
        {
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);
            throw;
        }
    }
}

PDF url to in-memory text

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // Create an API client instance.
            pdfcrowd.PdfToTextClient client =
                new pdfcrowd.PdfToTextClient("demo", "ce544b6ea52a5621fb9d55f8b542d14d");

            // Run the conversion and store the result in the `txt` variable.
            byte[] txt = client.convertUrl("https://pdfcrowd.com/static/pdf/apisamples/invoice.pdf");

            // at this point the "txt" variable contains TXT raw data and
            // can be sent in an HTTP response, saved to a file, etc.
        }
        catch(pdfcrowd.Error why)
        {
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);
            throw;
        }
    }
}

PDF url to text stream

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // Create an API client instance.
            pdfcrowd.PdfToTextClient client =
                new pdfcrowd.PdfToTextClient("demo", "ce544b6ea52a5621fb9d55f8b542d14d");

            // Create an output stream for the conversion result
            FileStream outputStream = new FileStream("invoice.txt", FileMode.CreateNew);

            // run the conversion and write the result to the output stream.
            client.convertUrlToStream("https://pdfcrowd.com/static/pdf/apisamples/invoice.pdf", outputStream);

            // Close the output stream.
            outputStream.Close();
        }
        catch(pdfcrowd.Error why)
        {
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);
            throw;
        }
    }
}

In-memory PDF to text file

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // Create an API client instance.
            pdfcrowd.PdfToTextClient client =
                new pdfcrowd.PdfToTextClient("demo", "ce544b6ea52a5621fb9d55f8b542d14d");

            // Run the conversion and save the result to a file.
            client.convertRawDataToFile(File.ReadAllBytes("/path/to/hello_world.pdf"), "invoice.txt");
        }
        catch(pdfcrowd.Error why)
        {
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);
            throw;
        }
    }
}

In-memory PDF to in-memory text

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // Create an API client instance.
            pdfcrowd.PdfToTextClient client =
                new pdfcrowd.PdfToTextClient("demo", "ce544b6ea52a5621fb9d55f8b542d14d");

            // Run the conversion and store the result in the `txt` variable.
            byte[] txt = client.convertRawData(File.ReadAllBytes("/path/to/hello_world.pdf"));

            // at this point the "txt" variable contains TXT raw data and
            // can be sent in an HTTP response, saved to a file, etc.
        }
        catch(pdfcrowd.Error why)
        {
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);
            throw;
        }
    }
}

In-memory PDF to text stream

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // Create an API client instance.
            pdfcrowd.PdfToTextClient client =
                new pdfcrowd.PdfToTextClient("demo", "ce544b6ea52a5621fb9d55f8b542d14d");

            // Create an output stream for the conversion result
            FileStream outputStream = new FileStream("invoice.txt", FileMode.CreateNew);

            // run the conversion and write the result to the output stream.
            client.convertRawDataToStream(File.ReadAllBytes("/path/to/hello_world.pdf"), outputStream);

            // Close the output stream.
            outputStream.Close();
        }
        catch(pdfcrowd.Error why)
        {
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);
            throw;
        }
    }
}

Get info about the current conversion

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // Create an API client instance.
            pdfcrowd.PdfToTextClient client =
                new pdfcrowd.PdfToTextClient("demo", "ce544b6ea52a5621fb9d55f8b542d14d");

            // Configure the conversion.
            client.setDebugLog(true);
            client.setPageBreakMode("default");

            // Run the conversion and save the result to a file.
            client.convertFileToFile("/path/to/invoice.pdf", "invoice.txt");
            
            // print URL of the debug log
            System.Console.WriteLine("Debug log url: " + client.getDebugLogUrl());
            
            // print the number of conversion credits remaining in your account
            System.Console.WriteLine("Remaining credit count: " + client.getRemainingCreditCount());
            
            // print the number of credits used for the conversion
            System.Console.WriteLine("Consumed credit count: " + client.getConsumedCreditCount());
            
            // print the unique identifier for the conversion
            System.Console.WriteLine("Job id: " + client.getJobId());
            
            // print total number of pages in the output document
            System.Console.WriteLine("Page count: " + client.getPageCount());
            
            // print size of the output data in bytes
            System.Console.WriteLine("Output size: " + client.getOutputSize());
        }
        catch(pdfcrowd.Error why)
        {
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);
            throw;
        }
    }
}

ASP.NET Web Forms examples

PDF file to text in ASP.NET Web Forms

using System;
using System.IO;
using System.Web;
using System.Web.UI;
using System.Web.Mvc;

namespace PdfcrowdDemo
{
    public partial class Default: System.Web.UI.Page
    {
        protected override void Render(HtmlTextWriter writer)
        {
            try
            {
                // Create an API client instance.
                pdfcrowd.PdfToTextClient client =
                    new pdfcrowd.PdfToTextClient("demo", "ce544b6ea52a5621fb9d55f8b542d14d");

                // Run the conversion and store the result in the `txt` variable.
                byte[] txt = client.convertFile("/path/to/invoice.pdf");

                // Set HTTP response headers.
                Response.ContentType = "text/plain";
                Response.Headers.Add("Cache-Control", "max-age=0");
                Response.Headers.Add("Accept-Ranges", "none");
                Response.Headers.Add("Content-Disposition", "attachment; filename*=UTF-8''" + Uri.EscapeUriString("invoice.txt"));

                // Send the result in the HTTP response.
                Response.OutputStream.Write(txt, 0, txt.Length);
                Response.Flush();
            }
            catch(pdfcrowd.Error why)
            {
                // Send the error in the HTTP response.
                Response.StatusCode = why.getCode();
                Response.StatusDescription = why.getMessage();
            }
        }
    }
}

PDF url to text in ASP.NET Web Forms

using System;
using System.IO;
using System.Web;
using System.Web.UI;
using System.Web.Mvc;

namespace PdfcrowdDemo
{
    public partial class Default: System.Web.UI.Page
    {
        protected override void Render(HtmlTextWriter writer)
        {
            try
            {
                // Create an API client instance.
                pdfcrowd.PdfToTextClient client =
                    new pdfcrowd.PdfToTextClient("demo", "ce544b6ea52a5621fb9d55f8b542d14d");

                // Run the conversion and store the result in the `txt` variable.
                byte[] txt = client.convertUrl("https://pdfcrowd.com/static/pdf/apisamples/invoice.pdf");

                // Set HTTP response headers.
                Response.ContentType = "text/plain";
                Response.Headers.Add("Cache-Control", "max-age=0");
                Response.Headers.Add("Accept-Ranges", "none");
                Response.Headers.Add("Content-Disposition", "attachment; filename*=UTF-8''" + Uri.EscapeUriString("invoice.txt"));

                // Send the result in the HTTP response.
                Response.OutputStream.Write(txt, 0, txt.Length);
                Response.Flush();
            }
            catch(pdfcrowd.Error why)
            {
                // Send the error in the HTTP response.
                Response.StatusCode = why.getCode();
                Response.StatusDescription = why.getMessage();
            }
        }
    }
}

In-memory PDF to text in ASP.NET Web Forms

using System;
using System.IO;
using System.Web;
using System.Web.UI;
using System.Web.Mvc;

namespace PdfcrowdDemo
{
    public partial class Default: System.Web.UI.Page
    {
        protected override void Render(HtmlTextWriter writer)
        {
            try
            {
                // Create an API client instance.
                pdfcrowd.PdfToTextClient client =
                    new pdfcrowd.PdfToTextClient("demo", "ce544b6ea52a5621fb9d55f8b542d14d");

                // Run the conversion and store the result in the `txt` variable.
                byte[] txt = client.convertRawData(File.ReadAllBytes("/path/to/hello_world.pdf"));

                // Set HTTP response headers.
                Response.ContentType = "text/plain";
                Response.Headers.Add("Cache-Control", "max-age=0");
                Response.Headers.Add("Accept-Ranges", "none");
                Response.Headers.Add("Content-Disposition", "attachment; filename*=UTF-8''" + Uri.EscapeUriString("invoice.txt"));

                // Send the result in the HTTP response.
                Response.OutputStream.Write(txt, 0, txt.Length);
                Response.Flush();
            }
            catch(pdfcrowd.Error why)
            {
                // Send the error in the HTTP response.
                Response.StatusCode = why.getCode();
                Response.StatusDescription = why.getMessage();
            }
        }
    }
}