VellumPdf.Signing 2.0.0

.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher. 
dotnet add package VellumPdf.Signing --version 2.0.0
                    


                    

                
NuGet\Install-Package VellumPdf.Signing -Version 2.0.0
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="VellumPdf.Signing" Version="2.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="VellumPdf.Signing" Version="2.0.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="VellumPdf.Signing" />
                    


                            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 VellumPdf.Signing --version 2.0.0
                    


                    

                
#r "nuget: VellumPdf.Signing, 2.0.0"
#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. 
#:package VellumPdf.Signing@2.0.0
#: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=VellumPdf.Signing&version=2.0.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=VellumPdf.Signing&version=2.0.0
                    


                            Install as a Cake Tool

VellumPdf.Signing

NuGet CI

The digital-signature add-on for VellumPdf, a dependency-free PDF library for .NET 10 implemented clean-room from ISO 32000. It applies PAdES / PKCS#7 detached CMS signatures to a VellumPdf.Kernel.PdfDocument or a VellumPdf.Layout.Document.

  • PAdES levels B-B, B-T (RFC-3161 signature timestamp), B-LT (embedded OCSP/CRL in a /DSS), and B-LTA (archive document timestamp).
  • Pluggable timestamp (ITimestampClient) and revocation (IRevocationClient) clients, with HTTP implementations included.
  • Signs with HSM/PKCS#11/cloud-KMS certificates: PdfSignatureSettings.ExternalPrivateKey for a local synchronous key, or ExternalSigner (an IExternalSigner, via SignAsync) for a KMS whose signing call is a real network round-trip (Azure Key Vault, AWS KMS, GCP KMS).
  • Keeps the core zero-dependency: this package is the only one that references System.Security.Cryptography.Pkcs.

Install

dotnet add package VellumPdf.Signing

Usage

using System.Security.Cryptography.X509Certificates;
using VellumPdf.Fonts;        // Standard14
using VellumPdf.Layout;       // Document
using VellumPdf.Layout.Core;  // TextStyle
using VellumPdf.Layout.Elements;
using VellumPdf.Signing;

using var doc = new Document();
doc.SetDefaultFont(new TextStyle { Font = Standard14.Helvetica, FontSize = 11 });
doc.Add(new Paragraph("Signed with VellumPdf."));

var settings = new PdfSignatureSettings
{
    Certificate = X509CertificateLoader.LoadPkcs12FromFile("signer.pfx", "password"),
    Level = PadesLevel.B_T,
    TimestampClient = new HttpTimestampClient(new Uri("https://timestamp.example/tsa")),
    Reason = "Approved",
};

using var output = File.OpenWrite("signed.pdf");
doc.Sign(output, settings);

Documentation

Package family and project home: https://github.com/Tim81/VellumPDF

The VellumPdf family

Package Status Summary
VellumPdf.Kernel Stable Low-level PDF object model, canvas, fonts, images, encryption.
VellumPdf.Fonts.Standard14 Stable Embeddable standard-14 font substitutes for PDF/A text.
VellumPdf.Layout Stable High-level document builder: paragraphs, tables, images, pagination.
VellumPdf.Signing (this package) Stable PAdES / PKCS#7 digital signatures with timestamps and LTV.
VellumPdf.Reader Preview Opens existing PDFs; exposes catalog, signatures, and streams.
VellumPdf.Conformance Stable In-process PDF/A and PDF/UA preflight validation.
VellumPdf.Cli Stable vellum-preflight command-line PDF/A and PDF/UA validator.
VellumPdf.Barcodes Stable QR, Data Matrix, Aztec, PDF417, Code 128/GS1-128, Code 39, EAN/UPC, and ITF-14 as vectors.

Roadmap

Milestone Scope
2.0 — Breaking changes (this release) Strong-named assemblies (#53), an async I/O surface for Save/Sign/loaders (#54), and an external-signer API for cloud KMS and remote HSM signing (#165). Each changes assembly identity or the public contract, so they waited for a major version.
2.1 — PDF reader (structural) VellumPdf.Reader grows classic and cross-reference-stream parsing, object streams, and encryption support, with a fixture corpus proving it against real-world files (Epic #100).
2.2 — PDF content extraction Text and image extraction on top of the reader.
3.0 — Read-modify-write A unified round-trip document model that supersedes the write-once PdfDocument, so existing PDFs can be opened, edited, and saved back (Epic #101).

License

Apache-2.0. Source and issues: https://github.com/Tim81/VellumPDF

Product Compatible and additional computed target framework versions.
.NET 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. 
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
2.0.0 90 8/17/2026
1.11.0 135 7/11/2026
1.10.0 650 7/7/2026
1.9.0 118 7/6/2026
1.8.2 115 7/5/2026
1.8.1 121 7/3/2026
1.8.0 109 7/3/2026
1.7.8 116 7/3/2026
1.7.7 113 7/2/2026
1.7.6 126 6/28/2026
1.7.5 128 6/23/2026
1.7.4 122 6/23/2026
1.7.3 123 6/22/2026
1.7.2 132 6/22/2026
1.7.1 131 6/21/2026
1.7.0 120 6/21/2026
1.6.0 141 6/17/2026
1.5.6 138 6/16/2026
1.5.5 143 6/16/2026
1.5.4 214 6/13/2026
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See https://github.com/Tim81/VellumPDF/blob/main/CHANGELOG.md for release notes.