How to read text on PDF file and Image File using C# ?

Question

HI,

 

We have an application which Gets a Scanned paper PDF files,

Our requirement is to read the text present on those files and  Save that text while user Uploads a PDF at that time.

Is it possible to do with.Net or please tell me if any other approaches are available. 

Answer 1

With LEADTOOLS OCR features you can recognize text from almost all common image formats along with PDF files.
You can achieve that using LEADTOOLS with .NET code similar to this:

IOcrEngine _ocrEngine;
_ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.Advantage, false);
_ocrEngine.Startup(null, null, null, null);
IOcrDocument ocrDoc = _ocrEngine.DocumentManager.CreateDocument();
ocrDoc.Pages.AddPage(inputFileName, null);
ocrDoc.Pages[0].Recognize(null);
// Save the result to a disk as plain text
string outputFileName = "output.txt";
ocrDoc.Save(outputFileName, Leadtools.Forms.DocumentWriters.DocumentFormat.Text, null);
_ocrEngine.Shutdown();

To see how it works, check this link:
http://demo.leadtools.com/JavaScript/OCR/index.html

Answer 2

Hi Tushar,

 

Refer below links

 

https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Read-PDF-Read-PDF-Images-and-Text-in-C-VB.NET.html

 

http://www.nullskull.com/q/10465415/read-image-text-from-pdf-file-to-itextsharp-in-aspnet-c.aspx