Syncfusion.PDF.OCR.Net.Core 31.1.21

Prefix Reserved

dotnet add package Syncfusion.PDF.OCR.Net.Core --version 31.1.21

NuGet\Install-Package Syncfusion.PDF.OCR.Net.Core -Version 31.1.21

This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.

<PackageReference Include="Syncfusion.PDF.OCR.Net.Core" Version="31.1.21" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="Syncfusion.PDF.OCR.Net.Core" Version="31.1.21" />
                    

                            Directory.Packages.props

<PackageReference Include="Syncfusion.PDF.OCR.Net.Core" />
                    

                            Project file

For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.

paket add Syncfusion.PDF.OCR.Net.Core --version 31.1.21

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: Syncfusion.PDF.OCR.Net.Core, 31.1.21"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

#:package Syncfusion.PDF.OCR.Net.Core@31.1.21

#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.

#addin nuget:?package=Syncfusion.PDF.OCR.Net.Core&version=31.1.21
                    

                            Install as a Cake Addin

#tool nuget:?package=Syncfusion.PDF.OCR.Net.Core&version=31.1.21
                    

                            Install as a Cake Tool

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

Converts scanned PDF to searchable PDF.
Converts various image formats such as TIFF, JPEG, PNG, BMP to searchable PDF.
Converts image or PDF to text with location.
Process OCR for the specified region in both PDF and image.
Supports 60+ languages.
Recognize text from rotated images and PDF documents.
Works both in 32-bit and 64-bit environments.
Thread safe.

Getting Started

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

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 
lDoc.Save(fileStream);
lDoc.Close(true);

}

Help Resources

Product page: Syncfusion OCR library
Documentation: Syncfusion OCR library

Support and feedback

For queries, reach our Syncfusion support team or post the queries through the community forums.
Request new feature through Syncfusion feedback portal.

License

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.

sales@syncfusion.com | www.syncfusion.com | Toll Free: 1-888-9 DOTNET

Product	Compatible and additional computed target framework versions.
.NET	net5.0 was computed. net5.0-windows was computed. net6.0 was computed. net6.0-android was computed. net6.0-ios was computed. net6.0-maccatalyst was computed. net6.0-macos was computed. net6.0-tvos was computed. net6.0-windows was computed. net7.0 was computed. net7.0-android was computed. net7.0-ios was computed. net7.0-maccatalyst was computed. net7.0-macos was computed. net7.0-tvos was computed. net7.0-windows was computed. net8.0 is compatible. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed. net9.0 is compatible. net9.0-android was computed. net9.0-browser was computed. net9.0-ios was computed. net9.0-maccatalyst was computed. net9.0-macos was computed. net9.0-tvos was computed. net9.0-windows was computed. net10.0 was computed. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed.
.NET Core	netcoreapp2.0 was computed. netcoreapp2.1 was computed. netcoreapp2.2 was computed. netcoreapp3.0 was computed. netcoreapp3.1 was computed.
.NET Standard	netstandard2.0 is compatible. netstandard2.1 was computed.
.NET Framework	net461 was computed. net462 was computed. net463 was computed. net47 was computed. net471 was computed. net472 was computed. net48 was computed. net481 was computed.
MonoAndroid	monoandroid was computed.
MonoMac	monomac was computed.
MonoTouch	monotouch was computed.
Tizen	tizen40 was computed. tizen60 was computed.
Xamarin.iOS	xamarinios was computed.
Xamarin.Mac	xamarinmac was computed.
Xamarin.TVOS	xamarintvos was computed.
Xamarin.WatchOS	xamarinwatchos was computed.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

.NETStandard 2.0
- NETStandard.Library (>= 2.0.0)
- SkiaSharp (>= 3.116.1)
- Syncfusion.Pdf.Imaging.Net.Core (>= 31.1.21)
- System.Reflection.Emit (>= 4.3.0)
net8.0
- SkiaSharp (>= 3.116.1)
- Syncfusion.Pdf.Imaging.Net.Core (>= 31.1.21)
- System.Reflection.Emit (>= 4.3.0)
net9.0
- SkiaSharp (>= 3.116.1)
- Syncfusion.Pdf.Imaging.Net.Core (>= 31.1.21)
- System.Reflection.Emit (>= 4.3.0)

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GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
31.1.21	48	9/22/2025
31.1.20	308	9/16/2025
31.1.19	199	9/11/2025
31.1.18	157	9/10/2025
31.1.17	169	9/5/2025
30.2.7	348	8/25/2025
30.2.6	441	8/18/2025
30.2.5	403	8/13/2025
30.2.4	1,670	8/7/2025
30.1.42	459	7/28/2025
30.1.41	837	7/22/2025
30.1.40	515	7/14/2025
30.1.39	411	7/8/2025
30.1.38	571	7/1/2025
30.1.37	481	6/25/2025
29.2.11	3,173	6/16/2025
29.2.10	697	6/9/2025
29.2.9	478	6/5/2025
29.2.8	359	6/3/2025
29.2.7	486	5/26/2025
29.2.5	691	5/21/2025
29.2.4	2,713	5/14/2025
29.1.41	1,033	5/5/2025
29.1.40	450	4/28/2025
29.1.39	1,729	4/21/2025
29.1.38	2,520	4/15/2025
29.1.37	1,042	4/8/2025
29.1.35	12,353	4/1/2025
29.1.33	1,002	3/25/2025
28.2.12	1,102	3/19/2025
28.2.11	3,662	3/11/2025
28.2.9	1,449	3/4/2025
28.2.7	2,831	2/25/2025
28.2.6	1,594	2/18/2025
28.2.5	3,077	2/11/2025
28.2.4	1,112	2/4/2025
28.2.3	2,124	1/29/2025
28.1.41	4,603	1/21/2025
28.1.39	1,214	1/14/2025
28.1.38	2,617	1/7/2025
28.1.37	742	12/31/2024
28.1.36	921	12/23/2024
28.1.35	12,913	12/18/2024
28.1.33	2,414	12/12/2024
27.2.5	1,350	12/2/2024
27.2.4	1,702	11/26/2024
27.2.3	753	11/22/2024
27.2.2	1,504	11/15/2024
27.1.58	2,435	11/4/2024
27.1.57	891	10/29/2024
27.1.56	1,482	10/23/2024
27.1.55	1,103	10/21/2024
27.1.53	3,115	10/14/2024
27.1.52	596	10/7/2024
27.1.51	1,889	9/30/2024
27.1.50	1,395	9/24/2024
27.1.48	1,624	9/18/2024
26.2.14	1,991	9/9/2024
26.2.13	1,328	9/5/2024
26.2.12	475	9/2/2024
26.2.11	1,410	8/27/2024
26.2.10	831	8/19/2024
26.2.9	1,279	8/12/2024
26.2.8	387	8/5/2024
26.2.7	885	7/29/2024
26.2.5	1,985	7/26/2024
26.2.4	610	7/24/2024
26.1.42	972	7/15/2024
26.1.41	1,058	7/8/2024
26.1.40	399	7/1/2024
26.1.39	482	6/24/2024
26.1.38	754	6/18/2024
26.1.35	1,332	6/11/2024
25.2.7	473	6/3/2024
25.2.6	2,506	5/28/2024
25.2.5	400	5/21/2024
25.2.4	1,967	5/14/2024
25.2.3	1,208	5/8/2024
25.1.42	366	4/29/2024
25.1.41	208,131	4/23/2024
25.1.40	320	4/15/2024
25.1.39	43,118	4/8/2024
25.1.38	881	4/1/2024
25.1.37	384	3/26/2024
25.1.35	19,887	3/15/2024
24.2.9	895	3/5/2024
24.2.8	6,405	2/27/2024
24.2.7	7,992	2/20/2024
24.2.6	1,069	2/15/2024
24.2.5	310	2/12/2024
24.2.4	431	2/6/2024
24.2.3	892	1/31/2024
24.1.47	1,024	1/23/2024
24.1.46	703	1/17/2024
24.1.45	348	1/9/2024
24.1.44	433	1/3/2024
24.1.43	285	12/27/2023
24.1.41	11,404	12/18/2023
23.2.7	461	12/6/2023
23.2.6	2,895	11/28/2023
23.2.5	265	11/23/2023
23.2.4	313	11/20/2023
23.1.44	351	11/6/2023
23.1.43	290	10/30/2023
23.1.42	296	10/23/2023
23.1.41	2,679	10/16/2023
23.1.40	3,587	10/10/2023
23.1.39	576	10/4/2023
23.1.38	289	9/26/2023
23.1.36	624	9/15/2023
22.2.12	580	9/5/2023
22.2.11	472	8/28/2023
22.2.10	1,393	8/22/2023
22.2.9	361	8/14/2023
22.2.8	418	8/7/2023
22.2.7	324	8/2/2023
22.2.5	9,826	7/27/2023
22.1.39	429	7/18/2023
22.1.38	438	7/11/2023
22.1.37	788	7/3/2023
22.1.36	438	6/28/2023
22.1.34	484	6/21/2023
21.2.10	2,945	6/13/2023
21.2.9	349	6/6/2023
21.2.8	571	5/30/2023
21.2.6	336	5/22/2023
21.2.5	453	5/15/2023
21.2.4	2,652	5/9/2023
21.2.3	1,755	5/3/2023
21.1.41	689	4/19/2023
21.1.39	1,476	4/10/2023
21.1.38	536	4/3/2023
21.1.37	474	3/29/2023
21.1.35	608	3/23/2023
20.4.0.54	609	3/13/2023
20.4.0.53	659	3/7/2023
20.4.0.52	558	2/28/2023
20.4.0.51	555	2/21/2023
20.4.0.50	539	2/14/2023
20.4.0.48	637	2/1/2023
20.4.0.44	1,343	1/18/2023
20.4.0.43	921	1/10/2023
20.4.0.42	675	1/4/2023
20.4.0.41	554	12/29/2022
20.4.0.40	482	12/28/2022
20.4.0.38	581	12/21/2022
20.3.0.61	596	12/13/2022
20.3.0.60	551	12/6/2022
20.3.0.59	589	11/29/2022
20.3.0.58	1,145	11/22/2022
20.3.0.57	719	11/15/2022
20.3.0.56	996	11/8/2022
20.3.0.52	607	10/27/2022
20.3.0.50	934	10/18/2022
20.3.0.49	609	10/11/2022
20.3.0.48	550	10/5/2022
20.3.0.47	34,873	9/29/2022
20.2.0.50	719	9/20/2022
20.2.0.49	741	9/13/2022
20.2.0.48	653	9/6/2022
20.2.0.46	633	8/30/2022
20.2.0.45	6,905	8/23/2022
20.2.0.44	856	8/16/2022
20.2.0.43	721	8/8/2022
20.2.0.40	861	7/26/2022
20.2.0.39	728	7/19/2022
20.2.0.38	2,669	7/12/2022
20.2.0.36	20,742	6/30/2022
20.1.0.61	1,221	6/21/2022
20.1.0.60	825	6/14/2022
20.1.0.59	865	6/7/2022
20.1.0.58	36,791	5/31/2022
20.1.0.57	2,519	5/24/2022
20.1.0.56	759	5/17/2022
20.1.0.55	3,426	5/12/2022
20.1.0.52	933	5/3/2022
20.1.0.51	796	4/26/2022
20.1.0.50	940	4/19/2022
20.1.0.48	785	4/12/2022
20.1.0.47	755	4/4/2022
19.4.0.56	7,661	3/15/2022
19.4.0.55	954	3/8/2022
19.4.0.54	788	3/1/2022
19.4.0.53	800	2/22/2022
19.4.0.52	765	2/15/2022
19.4.0.50	765	2/8/2022
19.4.0.48	3,133	1/31/2022
19.4.0.47	764	1/25/2022
19.4.0.43	852	1/18/2022
19.4.0.42	765	1/11/2022
19.4.0.41	650	1/4/2022
19.4.0.40	503	12/28/2021
19.4.0.38	598	12/17/2021
19.3.0.59	563	12/14/2021
19.3.0.57	742	12/7/2021
19.3.0.56	668	11/30/2021
19.3.0.55	565	11/23/2021
19.3.0.54	568	11/17/2021
19.3.0.53	544	11/12/2021
19.3.0.48	671	11/3/2021
19.3.0.47	1,095	10/26/2021
19.3.0.43	145,098	9/30/2021
19.2.0.55	945	8/11/2021
19.2.0.44	943	6/30/2021
19.1.0.63	993	5/13/2021
19.1.0.54	56,604	3/30/2021
18.4.0.39	9,205	1/28/2021
18.4.0.30	3,744	12/17/2020
18.3.0.47	11,068	11/5/2020
18.3.0.35	7,957	10/1/2020
18.2.0.44	3,821	7/7/2020
18.1.0.52	2,499	5/13/2020
18.1.0.42	1,788	4/1/2020
18.1.0.36-beta	569	3/19/2020

https://ej2.syncfusion.com/aspnetcore/documentation/release-notes/31.1.21?utm_source=nuget&utm_medium=listing