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public TextReader GetText()

// Create an instance of Parser class
using(Parser parser = new Parser(filePath))
{
    // Extract a text into the reader
    using(TextReader reader = parser.GetText())
    {
        // Print a text from the document
        // If text extraction isn't supported, a reader is null
        Console.WriteLine(reader == null ? "Text extraction isn't supported" : reader.ReadToEnd());
    }
}

public TextReader GetText(TextOptions options)

// Create an instance of Parser class
using(Parser parser = new Parser(filePath))
{
    // Extract a raw text into the reader
    using(TextReader reader = parser.GetText(new TextOptions(true)))
    {
        // Print a text from the document
        // If text extraction isn't supported, a reader is null
        Console.WriteLine(reader == null ? "Text extraction isn't supported" : reader.ReadToEnd());
    }
}

public TextReader GetText(int pageIndex)

// Create an instance of Parser class
using(Parser parser = new Parser(filePath))
{
    // Check if the document supports text extraction
    if(!parser.Features.Text)
    {
        Console.WriteLine("Document isn't supports text extraction.");
        return;
    }

    // Get the document info
    IDocumentInfo documentInfo = parser.GetDocumentInfo();
    // Check if the document has pages
    if(documentInfo.PageCount == 0)
    {
        Console.WriteLine("Document hasn't pages.");
        return;
    }
 
    // Iterate over pages
    for(int p = 0; p<documentInfo.PageCount; p++)
    {
        // Print a page number 
        Console.WriteLine(string.Format("Page {0}/{1}", p + 1, documentInfo.PageCount));
 
        // Extract a text into the reader
        using(TextReader reader = parser.GetText(p))
        {
            // Print a text from the document
            // We ignore null-checking as we have checked text extraction feature support earlier
            Console.WriteLine(reader.ReadToEnd());
        }
    }
}

public TextReader GetText(int pageIndex, TextOptions options)

// Create an instance of Parser class
using(Parser parser = new Parser(filePath))
{
    // Check if the document supports text extraction
    if(!parser.Features.Text)
    {
        Console.WriteLine("Document isn't supports text extraction.");
        return;
    }

    // Get the document info
    DocumentInfo documentInfo = parser.GetDocumentInfo() as DocumentInfo;
    // Check if the document has pages
    if(documentInfo == null || documentInfo.RawPageCount == 0)
    {
        Console.WriteLine("Document hasn't pages.");
        return;
    }
 
    // Iterate over pages
    for(int p = 0; p<documentInfo.RawPageCount; p++)
    {
        // Print a page number 
        Console.WriteLine(string.Format("Page {0}/{1}", p + 1, documentInfo.RawPageCount));
 
        // Extract a text into the reader
        using(TextReader reader = parser.GetText(p, new TextOptions(true)))
        {
            // Print a text from the document
            // We ignore null-checking as we have checked text extraction feature support earlier
            Console.WriteLine(reader.ReadToEnd());
        }
    }
}