GroupDocs.Parser for .NET 23.3 Release Notes

// Create an instance of Parser class to generate document page previews
using (Parser parser = new Parser(Constants.SamplePdfWithToc))
{
    // Create preview options
    PreviewOptions previewOptions = new PreviewOptions(pageNumber => File.Create(GetOutputPath($"preview_{pageNumber}.png")));
    // Set PNG as an output image format
    previewOptions.PreviewFormat = PreviewFormats.PNG;
    // Set DPI for the output image
    previewOptions.Dpi = 72;

    // Generate previews
    parser.GeneratePreview(previewOptions);
}            

private static string GetOutputPath(string fileName)
{
    // Create the output directory if necessary
    if (!Directory.Exists(Constants.OutputPath))
    {
        Directory.CreateDirectory(Constants.OutputPath);
    }

    return Path.Combine(Constants.OutputPath, fileName);
}

// 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());
    }
}