Perform OCR in Mac

25 Sep 20232 minutes to read

The Syncfusion .NET OCR library used to extract text from scanned PDFs and images in the Mac application.

Steps to perform OCR on entire PDF document in Mac

Step 1: Create a new .NET Core console application project.

Step 2: Select the project version.

Step 3: Install the Syncfusion.PDF.OCR.Net.Core NuGet package as a reference to your project from NuGet.org.

NOTE

Starting with v16.2.0.x, if you reference Syncfusion assemblies from the trial setup or from the NuGet feed, you also have to add “Syncfusion.Licensing” assembly reference and include a license key in your projects. Refer to this link to learn about registering the Syncfusion license key in your application to use our components.

Step 4: Include the following Namespaces in the Program.cs file.

C#

using Syncfusion.OCRProcessor;

using Syncfusion.Pdf.Parsing;

Step 5: Add the following code sample to the Program.cs file to Perform OCR in .NET Core application on Mac OS.

C#

//Initialize the OCR processor.
using (OCRProcessor processor = new OCRProcessor())
{
   FileStream fileStream = new FileStream("Input.pdf", FileMode.Open, FileAccess.Read);
   //Load a PDF document.
   PdfLoadedDocument lDoc = new PdfLoadedDocument(fileStream);
   //Set the OCR language to be processed.
   processor.Settings.Language = Languages.English;
   //Process OCR by providing the PDF document.
   processor.PerformOCR(lDoc);
   //Create memory stream.
   MemoryStream stream = new MemoryStream();
   //Save the document to the memory stream.
   lDoc.Save(stream);
   lDoc.Close();
   //Set the position as '0'.
   stream.Position = 0;
   //Download the PDF document in the browser.
   FileStreamResult fileStreamResult = new FileStreamResult(stream, "application/pdf");
   fileStreamResult.FileDownloadName = "OCR.pdf";
   return fileStreamResult;
}

By executing the program, you will get a PDF document as follows.

A complete working sample can be downloaded from GitHub.

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