Sample app to parse file using GroupDocs.Parser API

parserPDF.cs

using System;
using GroupDocs.Parser;
using GroupDocs.Parser.Options;
using System.Xml;
using System.Linq;

public class parserPDF
{
    public static void Parse(string target)
    {
        Parser parser = new Parser(target);
        Features features = parser.Features;

        IDocumentInfo info = parser.GetDocumentInfo();

        Console.WriteLine(string.Format("FileType: {0}", info.FileType));
        Console.WriteLine(string.Format("PageCount: {0}", info.PageCount));
        Console.WriteLine(string.Format("Size: {0}", info.Size));
        Console.WriteLine("     ----");
        if (features.Text)
        {
            Console.WriteLine("Text:");
            Console.WriteLine(parser.GetText().ReadToEnd());
        }
        if (features.Container)
        {
            Console.WriteLine("Container (" + parser.GetContainer().Count() + "):");
            foreach (GroupDocs.Parser.Data.ContainerItem item in parser.GetContainer())
            {
                Console.WriteLine("     Name: " + item.Name);
                Console.WriteLine("     Size: " + item.Size);
                Console.WriteLine("     ?: " + item.ToString());
            }
        }
        if (features.Toc)
        {
            Console.WriteLine("Toc (" + parser.GetToc().Count() + "):");
            foreach (GroupDocs.Parser.Data.TocItem tocItem in parser.GetToc())
            {
                Console.WriteLine(tocItem.ExtractText().ReadToEnd());
            }
        }
        if (features.Images)
        {
            Console.WriteLine("Images (" + parser.GetImages().Count() + "):");
            int i = 0;
            foreach (GroupDocs.Parser.Data.PageImageArea image in parser.GetImages())
            {
                i++;
                image.Save(target + "_extracted-" + i + "." + image.FileType.Extension);
            }
        }
        if (features.Metadata)
        {
            Console.WriteLine("Metadata (" + parser.GetMetadata().Count() + "):");
            foreach (GroupDocs.Parser.Data.MetadataItem metaItem in parser.GetMetadata())
            {
                Console.WriteLine("Name: " + metaItem.Name + " || Value: " + metaItem.Value);
            }
        }
        if (features.Structure)
        {
            Console.WriteLine("Structure:");
            XmlReader reader = parser.GetStructure();

            while (reader.Read())
            {
                switch (reader.NodeType)
                {
                    case XmlNodeType.Element:
                        Console.WriteLine("Start Element {0}", reader.Name);
                        break;
                    case XmlNodeType.Text:
                        Console.WriteLine("Text Node: {0}", reader.Value);
                        break;
                    case XmlNodeType.EndElement:
                        Console.WriteLine("End Element {0}", reader.Name);
                        break;
                    default:
                        Console.WriteLine("Other node {0} with value {1}",
                                        reader.NodeType, reader.Value);
                        break;
                }
            }
        }
        if (features.TextAreas)
        {
            Console.WriteLine("TextAreas (" + parser.GetTextAreas().Count() + "):");
            foreach (GroupDocs.Parser.Data.PageTextArea page in parser.GetTextAreas())
            {
                Console.WriteLine(page.Text);
            }
        }
        if (features.TextPage)
            Console.WriteLine("TextPage");
        if (features.Search)
            Console.WriteLine("Search");
        if (features.Tables)
            Console.WriteLine("Tables");
    }
}