/// <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);
}
}