GroupDocs.Signature 24.12.0

.NET 6.0 This package targets .NET 6.0. The package is compatible with this framework or higher. .NET Standard 2.1 This package targets .NET Standard 2.1. The package is compatible with this framework or higher. .NET Framework 4.6.2 This package targets .NET Framework 4.6.2. The package is compatible with this framework or higher. 
dotnet add package GroupDocs.Signature --version 24.12.0                

                    
                

            
NuGet\Install-Package GroupDocs.Signature -Version 24.12.0
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="GroupDocs.Signature" Version="24.12.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
paket add GroupDocs.Signature --version 24.12.0                

                    
                

            
#r "nuget: GroupDocs.Signature, 24.12.0"
#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. 
// Install GroupDocs.Signature as a Cake Addin
#addin nuget:?package=GroupDocs.Signature&version=24.12.0

// Install GroupDocs.Signature as a Cake Tool
#tool nuget:?package=GroupDocs.Signature&version=24.12.0

Sign Documents API

Package version Package downloads .NET

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Product Page Docs Demo API Reference Examples Blog Search Free Support Temporary License

This on-premise .NET API lets your app end-users sign the electronic documents from a wide range of file formats. Supports several types of e-signing methods.

Content

Features

  • Create and add signatures to documents of various file formats.
  • Specify visual attributes of signatures, such as color, font, margins, etc.
  • Search and fetch a list of signatures from a document.
  • Determine if the document contains signatures meeting specified criteria.
  • Extract basic information about the document.
  • Generate image representation of document pages for preview.
  • Distinguish created signatures from the actual document.
  • Put encrypted text into the QR-code signature or embed custom data objects.

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Signature Supported Formats

The following section lists the supported file formats for the barcode, image, QR-code, stamp, and text signature types:
Microsoft Word: DOC, DOCM, DOCX, DOT, DOTM, DOTX
Microsoft Excel: XLSX, XLS, XLSB, XLSM, XLTX, XLTM
Microsoft PowerPoint: PPTX, PPTM, PPT, PPSX, PPSM, PPS, POTX, POTM
OpenOffice: ODT, OTT, ODS, OTS, ODP, OTP
Image: BMP, DJVU, GIF, JPG, JPEG, PNG, SVG, TIF, TIFF, WEBP
CorelDraw: CDR, CMX
Photoshop: PSD
Metafile: WMF
Portable: PDF

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Digital Signature Supported Formats

Microsoft Word: DOC, DOCM, DOCX, DOT, DOTM, DOTX
Microsoft Excel: XLSX, XLS, XLSB, XLSM, XLTX, XLTM
OpenOffice: ODS, OTS
Portable: PDF

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FormField Signature Supported Formats

Microsoft Word: DOC, DOCM, DOCX, DOT, DOTM, DOTX
Microsoft Excel: XLSX, XLS, XLSB, XLSM, XLTX, XLTM
OpenOffice: ODS, OTS, ODP
Portable: PDF

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Metadata Signature Supported Formats

Microsoft Word: DOC, DOCM, DOCX, DOT, DOTM, DOTX
Microsoft Excel: XLSX, XLS, XLSB, XLSM, XLTX, XLTM
Microsoft PowerPoint: PPTX, PPTM, PPT, PPSX, PPSM, PPS, POTX, POTM
OpenOffice: ODT, OTT, ODS, OTS, ODP, OTP
Image: JPG, JPEG, PNG, SVG, TIF, TIFF
Photoshop: PSD
Portable: PDF

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Supported Signature Types

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Platform Independence

GroupDocs.Signature for .NET does not require any external software or third-party tool to be installed. GroupDocs.Signature for .NET supports any 32-bit or 64-bit operating system where .NET or Mono framework is installed. The other details are as follows:

Microsoft Windows: Microsoft Windows Desktop (x86, x64) (XP & up), Microsoft Windows Server (x86, x64) (2000 & up), Windows Azure
Mac OS: Mac OS X
Linux: Linux (Ubuntu, OpenSUSE, CentOS and others)
Development Environments: Microsoft Visual Studio (2010 & up), Xamarin.Android, Xamarin.IOS, Xamarin.Mac, MonoDevelop 2.4 and later.
Supported Frameworks: GroupDocs.Conversion for .NET supports .NET and Mono frameworks.

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Get Started

Are you ready to give GroupDocs.Signature for .NET a try? Simply execute Install-Package GroupDocs.Signature from Package Manager Console in Visual Studio to fetch & reference GroupDocs.Signature assembly in your project. If you already have GroupDocs.Signature for .Net and want to upgrade it, please execute Update-Package GroupDocs.Signature to get the latest version.

Please check the GitHub Repository for other common usage scenarios.

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Sign PDF with Digital Signature

The example below shows how to sign a PDF document with a digital e-signature using C# language. We can sign any other supported document format in the same way

 using (Signature signature = new Signature("sample.pdf"))
 {
     // initialize digital option with certificate file path
     DigitalSignOptions options = new DigitalSignOptions("certificate.pfx")
     {
         // set signature position
         Left = 100,
         Top = 100,

         Password = "1234567890"
     };
     signature.Sign("signed.pdf", options);
 }

Source*

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Sign with QR Code Signature

The code snippet below demonstrates how to sign a PDF document with the QR code signature

 using (Signature signature = new Signature("sample.pdf"))
 {
     // create QRCode option with predefined QRCode text
     QrCodeSignOptions options = new QrCodeSignOptions("JohnSmith")
     {
         // setup QRCode encoding type
         EncodeType = QrCodeTypes.QR,
         // set signature position
         Left = 100,
         Top = 100
     };
     signature.Sign("signed.pdf", options);
 }

Source*

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Verify Digital Signatures

This example shows how to verify Digital signature in the document

 using (Signature signature = new Signature("sample.pdf"))
 {
     DigitalVerifyOptions options = new DigitalVerifyOptions("certificate.pfx")
     {
         Comments = "Test comment"
     };
     // verify document signatures
     VerificationResult result = signature.Verify(options);
     if (result.IsValid)
     {
         Console.WriteLine("\nDocument was verified successfully!");
     }
     else
     {
         Console.WriteLine("\nDocument failed verification process.");
     }
 }

Source*

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Search Signatures in XLSX

This example shows how to search for Digital signature in the document and analyze digital signature certificate

 using (Signature signature = new Signature("spreadsheet.xlsx"))
 {
     // search for signatures in document
     List<DigitalSignature> signatures = signature.Search<DigitalSignature>(SignatureType.Digital);

     Console.WriteLine("\nSource document contains following signatures.");
     foreach (var digitalSignature in signatures)
     {
         Console.WriteLine("Digital signature found from {0} with validation flag {1}. Certificate SN {2}",
         digitalSignature.SignTime, digitalSignature.IsValid, digitalSignature.Certificate?.SerialNumber);
     }
 }

Source*

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Remove Signature from Document

This example shows how to delete Digital signature that was found using Search method

 using (Signature signature = new Signature("signed.pdf"))
 {
     List<DigitalSignature> signatures = 
         signature.Search<DigitalSignature>(SignatureType.Digital);

     if (signatures.Count > 0)
     {
         DigitalSignature digitalSignature = signatures[0];
         bool result = signature.Delete(digitalSignature);

         if (result)
         {
             Console.WriteLine(
                 $"Digital signature #{digitalSignature.Thumbprint} from " +
                 $"{digitalSignature.SignTime.ToShortDateString()} was deleted."
             );
         }
         else
         {
             Console.WriteLine(
                 $"Signature was not deleted from the document! " +
                 $"Signature# {digitalSignature.Thumbprint} was not found!"
             );
         }
     }
 }

Source*

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Custom PDF Digital Signature

This example shows how to specify extra appearances

 using (Signature signature = new Signature("sample.docx"))
 {
     DigitalSignOptions options = new DigitalSignOptions("certificate.pfx")
     {
         // certifiate password
         Password = "1234567890",
         // digital certificate details
         Reason = "Sign",
         Contact = "JohnSmith",
         Location = "Office1",   

         // image as digital certificate appearance on document pages
         ImageFilePath = imagePath,
         //
         AllPages = true,
         Width = 80,
         Height = 60,
         VerticalAlignment = VerticalAlignment.Bottom,
         HorizontalAlignment = HorizontalAlignment.Right,
         Margin = new Padding() { Bottom = 10, Right = 10 },
         // Setup signature line appearance.
         // This appearance will add Signature Line on the first page.
         // Could be useful for .xlsx files.
         Appearance = new DigitalSignatureAppearance("John Smith", "Title", "jonny@test.com")    
     };
     signature.Sign("signed.docx", options);
 }

Source

Product Page Docs Demo Reference Examples Blog Search Support License

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Tags

Document Singing | Digital Signature| Sign PDF | Sign DOCX | Sign XLSX | Sign Digitally| Digital Signature| esing| Cross Platform | Document Manipulation | High Performance | DotNet | API | Signature Verification | GroupDocs.Signature | Secure Signing | Document Security | Digital Certificate | X.509 Certificate | Batch Signing | Signature Management | Code Signing | Signature Workflow | Digital Signature API | Electronic Signature API | GroupDocs SDK | Document Integrity | Multi-format Signing

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 is compatible.  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 was computed.  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. 
.NET Core netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.1 is compatible. 
.NET Framework net462 is compatible.  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 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.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
24.12.0 227 12/20/2024
24.11.0 1,335 11/20/2024
24.10.0 718 10/31/2024
24.9.0 980 9/20/2024
24.8.0 1,147 8/25/2024
24.7.0 533 8/1/2024
24.6.0 987 7/1/2024
24.5.0 842 6/1/2024
24.4.0 1,305 4/30/2024
24.3.0 1,090 4/2/2024
24.2.0 1,528 2/29/2024
24.1.0 835 2/1/2024
23.12.0 1,306 12/28/2023
23.11.0 1,869 11/29/2023
23.10.0 1,701 10/25/2023
23.9.0 1,592 9/27/2023
23.8.0 1,593 8/30/2023
23.7.0 1,505 7/28/2023
23.6.0 2,960 7/9/2023
23.5.0 6,533 5/31/2023
23.4.0 1,220 4/29/2023
23.3.0 1,340 3/30/2023
23.2.0 2,013 3/1/2023
23.1.0 1,938 1/31/2023
22.12.0 7,901 12/31/2022
22.11.0 2,560 12/1/2022
22.10.0 1,109 11/1/2022
22.9.0 1,217 10/2/2022
22.8.0 1,118 8/31/2022
22.7.0 1,286 7/31/2022
22.6.0 1,264 6/30/2022
22.4.0 9,960 4/6/2022
21.11.0 16,094 12/1/2021
21.9.0 14,723 9/30/2021
21.7.0 10,710 8/1/2021
21.6.0 6,344 6/29/2021
21.4.0 7,075 5/3/2021
21.3.0 6,371 3/31/2021
21.1.0 45,470 1/28/2021
20.11.0 35,811 11/30/2020
20.10.0 25,049 11/2/2020
20.9.0 22,783 9/30/2020
20.8.0 21,627 9/1/2020
20.7.0 21,958 8/2/2020
20.6.0 50,574 7/1/2020
20.5.0 36,104 5/31/2020
20.4.0 37,262 4/30/2020
20.3.0 21,804 3/31/2020
20.2.0 37,469 2/29/2020
20.1.0 22,484 2/3/2020
19.12.1 19,696 1/10/2020
19.12.0 20,460 12/30/2019
19.10.0 32,978 10/31/2019
19.9.0 824 9/30/2019
19.8.0 860 8/23/2019
19.6.0 1,346 6/27/2019
19.5.0 1,557 5/30/2019
19.4.0 849 4/30/2019
19.3.0 889 3/30/2019
18.7.1 1,259 8/1/2018
18.7.0 1,204 7/30/2018
18.6.0 1,311 6/20/2018
18.5.0 1,111 5/30/2018
18.3.0 1,309 3/21/2018
18.2.0 1,362 2/19/2018
18.1.1 1,310 1/22/2018
18.1.0 1,438 1/21/2018
17.12.0 1,315 12/7/2017
17.11.0 1,272 11/7/2017
17.10.0 1,215 10/3/2017

https://releases.groupdocs.com/signature/net/release-notes/2024/groupdocs-signature-for-net-24-12-release-notes