using System;
using System.IO;
using Bytescout.PDFExtractor;

namespace IndexPDFFiles
{
    class Program
    {
        static void Main(string[] args)
        {
            // Create Bytescout.PDFExtractor.InfoExtractor instance
            InfoExtractor infoExtractor = new InfoExtractor();
            infoExtractor.RegistrationName = "demo";
            infoExtractor.RegistrationKey = "demo";

            TextExtractor textExtractor = new TextExtractor();
            textExtractor.RegistrationName = "demo";
            textExtractor.RegistrationKey = "demo";

            // List all PDF files in directory
            foreach (string file in Directory.GetFiles(@"..\..\..\..", "*.pdf"))
            {
                infoExtractor.LoadDocumentFromFile(file);

                Console.WriteLine("File Name:      " + Path.GetFileName(file));
                Console.WriteLine("Page Count:     " + infoExtractor.GetPageCount());
                Console.WriteLine("Author:         " + infoExtractor.Author);
                Console.WriteLine("Title:          " + infoExtractor.Title);
                Console.WriteLine("Producer:       " + infoExtractor.Producer);
                Console.WriteLine("Subject:        " + infoExtractor.Subject);
                Console.WriteLine("CreationDate:   " + infoExtractor.CreationDate);
                Console.WriteLine("Text (first 2 lines): ");

                // Load a couple of lines from each document
                textExtractor.LoadDocumentFromFile(file);
                using (StringReader stringReader = new StringReader(textExtractor.GetTextFromPage(0)))
                {
                    Console.WriteLine(stringReader.ReadLine());
                    Console.WriteLine(stringReader.ReadLine());
                }
                Console.WriteLine();
            }

            // Cleanup
            infoExtractor.Dispose();
            textExtractor.Dispose();

            Console.WriteLine();
            Console.WriteLine("Press any key to continue...");
            Console.ReadLine();
        }
    }
}