XFA Worker lets you program dynamic PDFs as well as convert them into static, protected PDF files for security reasons. XFA Worker is an add-on to the full iText suite, and as a closed-source project, it is only available with a commercial license.
xfaworker (iTextSharp) is EOL, and has been replaced by pdfXFA (iText 7). New releases will only be made to cater to security fixes.
See the version list below for details.
Install-Package itextsharp.xfaworker -Version 5.5.10
dotnet add package itextsharp.xfaworker --version 5.5.10
<PackageReference Include="itextsharp.xfaworker" Version="5.5.10" />
paket add itextsharp.xfaworker --version 5.5.10
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