DocWright.Signatures 1.1.4

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. .NET Framework 4.8 This package targets .NET Framework 4.8. The package is compatible with this framework or higher. 
dotnet add package DocWright.Signatures --version 1.1.4
                    


                    

                
NuGet\Install-Package DocWright.Signatures -Version 1.1.4
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="DocWright.Signatures" Version="1.1.4" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="DocWright.Signatures" Version="1.1.4" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="DocWright.Signatures" />
                    


                            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 DocWright.Signatures --version 1.1.4
                    


                    

                
#r "nuget: DocWright.Signatures, 1.1.4"
#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 DocWright.Signatures@1.1.4
#: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=DocWright.Signatures&version=1.1.4
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=DocWright.Signatures&version=1.1.4
                    


                            Install as a Cake Tool

DocWright.Signatures

Digital signatures for Office packages and PDFs: verify OPC package signatures with per-part results, sign a package, and add a PDF signature as an incremental update.

Add-on for DocWright.

Install

dotnet add package DocWright.Signatures

Verifying a signed package

using DocWright.Signatures;

using FileStream package = File.OpenRead("signed.docx");

PackageSignatureVerificationResult result = PackageSignatureVerifier.Verify(package);

Console.WriteLine($"signed: {result.IsSigned}, all valid: {result.AllSignaturesValid}");

foreach (PackageSignature signature in result.Signatures)
{
    Console.WriteLine($"{signature.PartUri}: {signature.Status}");   // Valid, ReferenceDigestMismatch, ...

    foreach (SignatureReferenceResult reference in signature.References)
    {
        Console.WriteLine($"  {reference.Target}: {(reference.Matches ? "ok" : "FAILED")}");
    }
}

Per-part results matter: they tell you which part broke a signature, not merely that something did.

Signing

Signing goes through an ISignatureProvider (or IPdfSignatureProvider for PDF) that you implement. DocWright never holds your private key, never opens a certificate store and never prompts — it hands your provider the bytes to sign and writes back what it returns. That keeps HSM, KMS and smart-card scenarios possible without this package knowing anything about them.

using DocWright.Signatures;

using FileStream source = File.OpenRead("contract.docx");
using FileStream destination = File.Create("contract-signed.docx");

PackageSigner.Sign(source, destination, myProvider, new PackageSigningOptions
{
    HashAlgorithm = SignatureHashAlgorithm.Sha256,
});

A PDF is signed the same way, through PdfSigner.Sign(pdfBytes, destination, provider, options) with an IPdfSignatureProvider that returns a detached CMS signature.

Important: saving invalidates a signature

A package signature covers the content parts. Any save re-serializes those parts, so a document that was signed, then loaded and saved, comes out with a signature that is intact as bytes and invalid as a signature. That is inherent to re-writing signed content, not a defect — verify before you edit, and re-sign after.

Requirements

.NET Framework 4.8, .NET Standard 2.0, .NET 8.0 or .NET 10.0.

Documentation

📖 DocWright documentation · Digital signatures · API reference: DocWright.Signatures

Contact

Questions, support or licensing: salwan@albahadly.com · www.albahadly.com

License

MIT.

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 was computed.  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 is compatible.  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 is compatible.  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.

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
1.1.4 74 9/28/2026
1.1.3 79 9/28/2026
1.1.2 105 9/3/2026
1.1.1 113 8/22/2026
1.1.0 102 8/22/2026

Guides, tutorials and API reference: https://docs.albahadly.com/docwright/