ByteScout PDF Suite – C# – Check If OCR Is Required for PDF with PDF Extractor SDK

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ByteScout PDF Suite – C# – Check If OCR Is Required for PDF with PDF Extractor SDK

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ByteScout-PDF-Suite-C-sharp-Check-If-OCR-Is-Required-for-PDF-with-PDF-Extractor-SDK.pdf

check if OCR is required for PDF with PDF extractor SDK in C# using ByteScout PDF Suite

check if OCR is required for PDF with PDF extractor SDK in C#

Easy to understand coding instructions are written to assist you to try-out the features without the requirement to write your own code. Check if OCR is required for PDF with PDF extractor SDK in C# can be applied with ByteScout PDF Suite. ByteScout PDF Suite is the set that includes 6 SDK products to work with PDF from generating rich PDF reports to extracting data from PDF documents and converting them to HTML. This bundle includes PDF (Generator) SDK, PDF Renderer SDK, PDF Extractor SDK, PDF to HTML SDK, PDF Viewer SDK and PDF Generator SDK for Javascript.

The below SDK samples describe how to quickly make your application do check if OCR is required for PDF with PDF extractor SDK in C# with the help of ByteScout PDF Suite. If you want to know how it works, then this C# sample code should be copied and pasted into your application’s code editor. Then just compile and run it. Use of ByteScout PDF Suite in C# is also described in the documentation included along with the product.

Trial version can be downloaded from our website for free. It contains this and other source code samples for C#.

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Program.cs

      using Bytescout.PDFExtractor;
using System;

namespace CheckIfOCRIsRequired
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                // Loop through all files in directory and check whether OCR operation is required
                foreach (string filePath in System.IO.Directory.GetFiles("InputFiles"))
                {
                    _CheckOCRRequired(filePath);
                }

            }
            catch (Exception ex)
            {
                Console.WriteLine("Error: " + ex.Message);
            }

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

        
        /// <summary>
        /// Check whether OCR Operation is required
        /// </summary>
        /// <param name="filePath"></param>
        private static void _CheckOCRRequired(string filePath)
        {
            //Read all file content...
            using (TextExtractor extractor = new TextExtractor())
            {
                extractor.RegistrationKey = "demo";
                extractor.RegistrationName = "demo";

                // Load document
                extractor.LoadDocumentFromFile(filePath);
                Console.WriteLine("\n*******************\n\nFilePath: {0}", filePath);

                int pageIndex = 0;

                // Identify OCR operation is recommended for page
                if (extractor.IsOCRRecommendedForPage(pageIndex))
                {
                    Console.WriteLine("\nOCR Recommended: True");

                    // 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 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;
                }
                else
                {
                    Console.WriteLine("\nOCR Recommended: False");
                }

                //Read all text
                var allExtractedText = extractor.GetText();
                Console.WriteLine("\nExtracted Text:\n{0}\n\n", allExtractedText);
            }

        }

    }
}