Add PDF functionality with Nutrient.SDK (C#)

The Nutrient.SDK package processes PDF, Office, and image documents in .NET applications. Use it to convert documents, edit PDFs, extract text and structured data, and run OCR.

Requirements

• .NET 10
• Windows x64 or ARM64
• macOS on Apple Silicon (ARM64)
• Linux x64 or ARM64

Install

Add the package to a .NET 10 project:

dotnet add package Nutrient.SDK

The package brings in the native runtime packages it needs through NuGet dependencies. You don’t need to add a runtime package directly.

NuGet package: https://www.nuget.org/packages/Nutrient.SDK(opens in a new tab)

Register your license key

For licensed use, register your license key before you open a document:

using Nutrient;

License.RegisterKey("YOUR_LICENSE_KEY");

Your Nutrient .NET SDK license key is valid for both the Nutrient.SDK and GdPicture.API packages. Without a key, the SDK runs in evaluation mode under the evaluation license agreement(opens in a new tab).

Convert a document to PDF

Place an input.docx file in the application’s working directory, then run:

using Nutrient;

using Document document = Document.Open("input.docx");
document.ExportAsPdf("output.pdf");

What you can do

• Convert PDF, Office, and image documents
• Edit PDFs, annotations, and form fields
• Extract text and structured data
• Run OCR on scanned documents
• Export documents as PDF, images, HTML, or Markdown
• Apply digital signatures

Next steps

• Nutrient.SDK overview and package comparison
• Nutrient.SDK API reference
• Nutrient.SDK changelog
• Support: https://support.nutrient.io/(opens in a new tab)