OCR scan part PDF document and write value in textbox c#

Question

OCR SCAN PART PDF DOCUMENT AND WRITE VALUE IN TEXTBOX C# Some help? Some recommendation?

Amit Gupta · Answer

You can read their documentations https://azure.microsoft.com/en-in/services/cognitive-services/computer-vision/

Goran Bibic · Answer

Amit Gupta Have but scal all pages.. Need specific location of page for scan

Rajanikant Hawaldar · Answer

Hi Dear, check this api https://ocr.space/ocrapi https://www.quora.com/What-are-some-available-free-OCR-APIs-for-scanning-receipts https://www.programmableweb.com/category/ocr/api thanks

Amit Gupta · Answer

Many API is available like Google Vision or from Microsoft Cognitive API

Maen Badwan · Answer

If you mean you have a PDF or image file, and you want to OCR (recognize) only a specific rectangle (area) of the file, you can do this using one of LEADTOOLS OCR engines by loading the file and then pass it with the rectangle bounds to the engine. The following C# code shows how you can do this using LEADTOOLS functions: RasterImage _ocrimage = null ; using (IOcrEngine ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.LEAD, false )) { ocrEngine.Startup( null , null , null , null ); using (IOcrDocument ocrDocument = ocrEngine.DocumentManager.CreateDocument()) { using (RasterCodecs codecs = new RasterCodecs()) { _ocrimage = codecs.Load(@ "C:\Source.pdf" ); if (_ocrimage != null ) { //Pass the processed image to the OCR engine using (IOcrPage ocrPage = ocrDocument.Pages.AddPage(_ocrimage, null )) { //ocrPage.AutoZone(null); LeadRect bounds = LeadRect.FromLTRB(10, 10, 200, 200); OcrZone zone = new OcrZone(); zone.ZoneType = OcrZoneType.Text; zone.Bounds = bounds; ocrPage.Zones.Add(zone); ocrPage.Recognize( null ); Console.WriteLine(ocrPage.GetText(-1)); } _ocrimage.Dispose(); } } } } You can find more information here: https://www.leadtools.com/help/leadtools/v20/dh/fo/iocrpage.html https://www.leadtools.com/help/leadtools/v20/dh/to/recognizing-ocr-pages.html