C#/VB.NET: Extract Text from PDF Documents

PM> Install-Package Spire.PDF

using System;
using System.IO;
using Spire.Pdf;
using Spire.Pdf.Texts;

namespace ExtractTextFromPage
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create a PdfDocument object
            PdfDocument doc = new PdfDocument();

            //Load a PDF file
            doc.LoadFromFile(@"C:\Users\Administrator\Desktop\Terms of Service.pdf");

            //Get the second page
            PdfPageBase page = doc.Pages[1];
      
            //Create a PdfTextExtractot object
            PdfTextExtractor textExtractor = new PdfTextExtractor(page);

            //Create a PdfTextExtractOptions object
            PdfTextExtractOptions extractOptions = new PdfTextExtractOptions();

            //Set isExtractAllText to true
            extractOptions.IsExtractAllText = true;

            //Extract text from the page
            string text = textExtractor.ExtractText(extractOptions);

            //Write to a txt file
            File.WriteAllText("Extracted.txt", text);
        }
    }
}

Imports System
Imports System.IO
Imports Spire.Pdf
Imports Spire.Pdf.Texts
 
Namespace ExtractTextFromPage
    Class Program
        Shared  Sub Main(ByVal args() As String)
            'Create a PdfDocument object
            Dim doc As PdfDocument =  New PdfDocument() 
 
            'Load a PDF file
            doc.LoadFromFile("C:\Users\Administrator\Desktop\Terms of Service.pdf")
 
            'Get the second page
            Dim page As PdfPageBase =  doc.Pages(1) 
 
            'Create a PdfTextExtractot object
            Dim textExtractor As PdfTextExtractor =  New PdfTextExtractor(page) 
 
            'Create a PdfTextExtractOptions object
            Dim extractOptions As PdfTextExtractOptions =  New PdfTextExtractOptions() 
 
            'Set isExtractAllText to true
            extractOptions.IsExtractAllText = True
 
            'Extract text from the page
            Dim text As String =  textExtractor.ExtractText(extractOptions) 
 
            'Write to a txt file
            File.WriteAllText("Extracted.txt", text)
        End Sub
    End Class
End Namespace

using Spire.Pdf;
using Spire.Pdf.Texts;
using System.IO;
using System.Drawing;

namespace ExtractTextFromRectangleArea
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create a PdfDocument object
            PdfDocument doc = new PdfDocument();

            //Load a PDF file
            doc.LoadFromFile(@"C:\Users\Administrator\Desktop\Terms of Service.pdf");

            //Get the second page
            PdfPageBase page = doc.Pages[1];

            //Create a PdfTextExtractot object
            PdfTextExtractor textExtractor = new PdfTextExtractor(page);

            //Create a PdfTextExtractOptions object
            PdfTextExtractOptions extractOptions = new PdfTextExtractOptions();

            //Set the rectangle area
            extractOptions.ExtractArea = new RectangleF(0, 0, 890, 170);

            //Extract text from the rectangle 
            string text = textExtractor.ExtractText(extractOptions);

            //Write to a txt file
            File.WriteAllText("Extracted.txt", text);
        }
    }
}

Imports Spire.Pdf
Imports Spire.Pdf.Texts
Imports System.IO
Imports System.Drawing
 
Namespace ExtractTextFromRectangleArea
    Class Program
        Shared  Sub Main(ByVal args() As String)
            'Create a PdfDocument object
            Dim doc As PdfDocument =  New PdfDocument() 
 
            'Load a PDF file
            doc.LoadFromFile("C:\Users\Administrator\Desktop\Terms of Service.pdf")
 
            'Get the second page
            Dim page As PdfPageBase =  doc.Pages(1) 
 
            'Create a PdfTextExtractot object
            Dim textExtractor As PdfTextExtractor =  New PdfTextExtractor(page) 
 
            'Create a PdfTextExtractOptions object
            Dim extractOptions As PdfTextExtractOptions =  New PdfTextExtractOptions() 
 
            'Set the rectangle area
            extractOptions.ExtractArea = New RectangleF(0, 0, 890, 170)
 
            'Extract text from the rectangle 
            Dim text As String =  textExtractor.ExtractText(extractOptions) 
 
            'Write to a txt file
            File.WriteAllText("Extracted.txt", text)
        End Sub
    End Class
End Namespace

using System.IO;
using Spire.Pdf;
using Spire.Pdf.Texts;

namespace SimpleExtraction
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create a PdfDocument object
            PdfDocument doc = new PdfDocument();

            //Load a PDF file
            doc.LoadFromFile(@"C:\Users\Administrator\Desktop\Invoice.pdf");

            //Get the first page
            PdfPageBase page = doc.Pages[0];

            //Create a PdfTextExtractor object
            PdfTextExtractor textExtractor = new PdfTextExtractor(page);

            //Create a PdfTextExtractOptions object
            PdfTextExtractOptions extractOptions = new PdfTextExtractOptions();

            //Set IsSimpleExtraction to true
            extractOptions.IsSimpleExtraction = true;

            //Extract text from the selected page 
            string text = textExtractor.ExtractText(extractOptions);

            //Write to a txt file
            File.WriteAllText("Extracted.txt", text);
        }
    }
}

Imports System.IO
Imports Spire.Pdf
Imports Spire.Pdf.Texts
 
Namespace SimpleExtraction
    Class Program
        Shared  Sub Main(ByVal args() As String)
            'Create a PdfDocument object
            Dim doc As PdfDocument =  New PdfDocument() 
 
            'Load a PDF file
            doc.LoadFromFile("C:\Users\Administrator\Desktop\Invoice.pdf")
 
            'Get the first page
            Dim page As PdfPageBase =  doc.Pages(0) 
 
            'Create a PdfTextExtractor object
            Dim textExtractor As PdfTextExtractor =  New PdfTextExtractor(page) 
 
            'Create a PdfTextExtractOptions object
            Dim extractOptions As PdfTextExtractOptions =  New PdfTextExtractOptions() 
 
            'Set IsSimpleExtraction to true
            extractOptions.IsSimpleExtraction = True
 
            'Extract text from the selected page 
            Dim text As String =  textExtractor.ExtractText(extractOptions) 
 
            'Write to a txt file
            File.WriteAllText("Extracted.txt", text)
        End Sub
    End Class
End Namespace