ByteScout Data Extraction Suite – C# – Index PDF Documents In Folder with PDF Extractor SDK

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ByteScout Data Extraction Suite – C# – Index PDF Documents In Folder with PDF Extractor SDK

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ByteScout-Data-Extraction-Suite-C-sharp-Index-PDF-Documents-In-Folder-with-PDF-Extractor-SDK.pdf

How to index PDF documents in folder with PDF extractor SDK in C# and ByteScout Data Extraction Suite

Learn to index PDF documents in folder with PDF extractor SDK in C#

These sample source codes on this page below are displaying how to index PDF documents in folder with PDF extractor SDK in C#. ByteScout Data Extraction Suite: the bundle that includes three SDK tools for data extraction from PDF, scans, images and from spreadsheets: PDF Extractor SDK, Data Extraction SDK, Barcode Reader SDK. It can index PDF documents in folder with PDF extractor SDK in C#.

These C# code samples for C# guide developers to speed up coding of the application when using ByteScout Data Extraction Suite. Follow the instructions from scratch to work and copy the C# code. Check C# sample code samples to see if they respond to your needs and requirements for the project.

All these programming tutorials along with source code samples and ByteScout free trial version are available for download from our website.

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Program.cs

      using Bytescout.PDFExtractor;
using System;
using System.Collections.Generic;
using System.IO;

namespace IndexDocsInFolder
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                // Output file list
                var lstAllFilesInfo = new List<FileIndexOutput>();

                // Get all files inside directory
                var allFiles = Directory.GetFiles(@".\Files", "*.*");

                // Iterate all files, and get details
                foreach (var itmFile in allFiles)
                {
                    // Get basic file information
                    FileInfo fileInfo = new FileInfo(itmFile);

                    // Check whether file is supported
                    if (_IsFileSupported(fileInfo))
                    {
                        // Fill file index model
                        var oFileIndex = new FileIndexOutput();
                        oFileIndex.fileName = fileInfo.Name;
                        oFileIndex.fileDate = fileInfo.CreationTime;
                        oFileIndex.content = _GetFileContent(fileInfo);

                        // Add to final list
                        lstAllFilesInfo.Add(oFileIndex);
                    }
                }

                // Print all output
                Console.WriteLine("Total {0} files indexed\n", lstAllFilesInfo.Count);
                foreach (var itmFileInfo in lstAllFilesInfo)
                {
                    Console.WriteLine("fileName: {0}", itmFileInfo.fileName);
                    Console.WriteLine("fileDate: {0}", itmFileInfo.fileDate.ToString("MMM dd yyyy hh:mm:ss"));
                    Console.WriteLine("content: {0}", itmFileInfo.content.Trim());
                    Console.WriteLine();
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }

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

        /// <summary>
        /// Get File Content
        /// </summary>
        private static string _GetFileContent(FileInfo fileInfo)
        {
            string fileExtension = System.IO.Path.GetExtension(fileInfo.FullName);

            if (fileExtension == ".pdf")
            {
                return _GetPdfFileContent(fileInfo);
            }
            else if (fileExtension == ".png" || fileExtension == ".jpg")
            {
                return _GetImageContet(fileInfo);
            }

            throw new Exception("File not supported.");
        }

        /// <summary>
        /// Get PDF File Content
        /// </summary>
        private static string _GetPdfFileContent(FileInfo fileInfo)
        {
            //Read all file content...
            using (TextExtractor textExtractor = new TextExtractor("demo","demo"))
            {
                //Load Document
                textExtractor.LoadDocumentFromFile(fileInfo.FullName);

                return textExtractor.GetText();
            }
        }

        /// <summary>
        /// Get Image Contents
        /// </summary>
        private static string _GetImageContet(FileInfo fileInfo)
        {
            //Read all file content...
            using (TextExtractor extractor = new TextExtractor())
            {
                // Load document
                extractor.LoadDocumentFromFile(fileInfo.FullName);

                //Set option to repair text
                extractor.OCRMode = OCRMode.TextFromImagesAndVectorsAndRepairedFonts;

                // Enable Optical Character Recognition (OCR)
                // in .Auto mode (SDK automatically checks if needs to use OCR or not)
                extractor.OCRMode = OCRMode.Auto;

                // Set the location of OCR language data files
                extractor.OCRLanguageDataFolder = @"c:\Program Files\Bytescout PDF Extractor SDK\ocrdata\";

                // Set OCR language
                extractor.OCRLanguage = "eng"; // "eng" for english, "deu" for German, "fra" for French, "spa" for Spanish etc - according to files in "ocrdata" folder
                // Find more language files at https://github.com/bytescout/ocrdata

                // Set PDF document rendering resolution
                extractor.OCRResolution = 300;

                // Read all text
                return extractor.GetText();
            }
        }

        /// <summary>
        /// Check whether file is valid
        /// </summary>
        private static bool _IsFileSupported(FileInfo fileInfo)
        {
            //Get File Extension
            string fileExtension = Path.GetExtension(fileInfo.Name);

            //Check whether file extension is valid
            return (fileExtension == ".pdf" || fileExtension == ".png" || fileExtension == ".jpg");
        }

    }

    /// <summary>
    /// FileIndexOutput class
    /// </summary>
    public class FileIndexOutput
    {
        public string fileName { get; set; }

        public DateTime fileDate { get; set; }

        public string content { get; set; }
    }

}