Syncfusion.PDF.OCR.Net.Core The ID prefix of this package has been reserved for one of the owners of this package by Prefix Reserved

.NET Standard 2.0
Install-Package Syncfusion.PDF.OCR.Net.Core -Version
dotnet add package Syncfusion.PDF.OCR.Net.Core --version
<PackageReference Include="Syncfusion.PDF.OCR.Net.Core" Version="" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Syncfusion.PDF.OCR.Net.Core --version
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: Syncfusion.PDF.OCR.Net.Core,"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install Syncfusion.PDF.OCR.Net.Core as a Cake Addin
#addin nuget:?package=Syncfusion.PDF.OCR.Net.Core&version=

// Install Syncfusion.PDF.OCR.Net.Core as a Cake Tool
#tool nuget:?package=Syncfusion.PDF.OCR.Net.Core&version=
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

The Syncfusion .NET Core OCR library is a feature-rich and high-performance library that is used to recognizes characters from both images and PDF. Syncfusion OCRProcessor uses tesseract, one of most accurate OCR engines.

Key Features

Getting Started

Install the Syncfusion.PDF.OCR.Net.Core NuGet package as reference to your .NET Core application from

OCR a PDF document programmatically using C#

//Initialize the OCR processor by providing the path of tesseract binaries(SyncfusionTesseract.dll and liblept168.dll)
using (OCRProcessor processor = new OCRProcessor(@"TesseractBinaries\"))
//Load a PDF document
FileStream stream = new FileStream(@"Input.pdf", FileMode.Open);

//Load a PDF document
PdfLoadedDocument lDoc = new PdfLoadedDocument(stream);

//Set OCR language to process
processor.Settings.Language = Languages.English;

//Process OCR by providing the PDF document and Tesseract data
processor.PerformOCR(lDoc, @"TessData\");

//Save the OCR processed PDF document in the disk
FileStream fileStream = new FileStream("Sample.pdf", FileMode.CreateNew, FileAccess.ReadWrite);

//Save and close the PDF document 


Help Resources

Support and feedback


This NuGet package is a part of the OPX product line. Any part of the OPX product line may be subject to additional terms, to include GPL or similar licenses. Syncfusion holds no liability and provides no indemnity in any form for any OPX product. If you do not agree to these terms, do not download this NuGet package.

About Syncfusion

Founded in 2001 and headquartered in Research Triangle Park, N.C., Syncfusion has more than 27,000+ customers and more than 1 million users, including large financial institutions, Fortune 500 companies, and global IT consultancies.

Today, we provide 1700+ components and frameworks for web (Blazor, Flutter, ASP.NET Core, ASP.NET MVC, ASP.NET Web Forms, JavaScript, Angular, React, Vue, and jQuery), mobile (.NET MAUI (Preview), Flutter, Xamarin, UWP, and JavaScript), and desktop development (WinForms, WPF, WinUI, .NET MAUI (Preview), Flutter, Xamarin, and UWP). We provide ready-to-deploy enterprise software for dashboards, reports, data integration, and big data processing. Many customers have saved millions in licensing fees by deploying our software. | | Toll Free: 1-888-9 DOTNET

Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows
.NET Core netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard2.0 netstandard2.1
.NET Framework net461 net462 net463 net47 net471 net472 net48
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen40 tizen60
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
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NuGet packages

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Version Downloads Last updated 60 8/16/2022 114 8/8/2022 187 7/26/2022 137 7/19/2022 1,562 7/12/2022 443 6/30/2022 319 6/21/2022 139 6/14/2022 192 6/7/2022 211 5/31/2022 387 5/24/2022 185 5/17/2022 2,525 5/12/2022 356 5/3/2022 264 4/26/2022 351 4/19/2022 188 4/12/2022 160 4/4/2022 5,421 3/15/2022 331 3/8/2022 182 3/1/2022 162 2/22/2022 142 2/15/2022 154 2/8/2022 2,524 1/31/2022 163 1/25/2022 242 1/18/2022 168 1/11/2022 298 1/4/2022 154 12/28/2021 224 12/17/2021 177 12/14/2021 254 12/7/2021 269 11/30/2021 177 11/23/2021 188 11/17/2021 183 11/12/2021 281 11/3/2021 206 10/26/2021 1,611 9/30/2021 459 8/11/2021 498 6/30/2021 479 5/13/2021 33,163 3/30/2021 4,101 1/28/2021 3,170 12/17/2020 8,107 11/5/2020 3,314 10/1/2020 3,262 7/7/2020 1,754 5/13/2020 1,195 4/1/2020 327 3/19/2020