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Extract Text in ASP.NET Core PDF Viewer control

22 Oct 2021 / 1 minute to read

The PDF Viewer server library allows you to extract the text from a page along with the bounds. Text extracting can be done using the ExtractText() method. Add the following dependency to your application using the NuGet Package Manager.

  • Syncfusion.EJ2.PdfViewer.AspNet.Core.Windows

For Linux and OSX operating systems, use the corresponding libraries as follows:

  • Syncfusion.EJ2.PdfViewer.AspNet.Core.Linux
  • Syncfusion.EJ2.PdfViewer.AspNet.Core.OSX

From Volume 2 2019 release Syncfusion.Pdf.Net.Core and Syncfusion.Compression.Net.Core packages are added as dependency for PDF Viewer control. Ensure the dependency packages are referred in your application properly.

The following code snippet explains how to extract the text from a page.

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//Uses the Syncfusion.EJ2.PdfViewer assembly
PdfRenderer pdfExtractText = new PdfRenderer();
pdfExtractText.Load(@"currentDirectory\..\..\..\..\Data\HTTP Succinctly.pdf");
//Returns the bounds of the text
List<Syncfusion.EJ2.PdfViewer.TextData> textCollection = new List<Syncfusion.EJ2.PdfViewer.TextData>();
//Extracts the text from the first page of the PDF document along with its bounds
string text = pdfExtractText.ExtractText(0, out textCollection);
System.IO.File.WriteAllText(@"currentDirectory\..\..\..\..\Data\data.txt", text);


Ensure the provided document path and output text saved locations in your application level.