C# SDK
The .NET SDK provides a client for integrating PDFGate API endpoints into your C# applications. It supports .NET Standard 2.0+ and is designed for ASP.NET services, worker processes, and backend environments that require reliable, direct access to all API operations.
Source code: github.com/pdfgate/pdfgate-sdk-dotnet
Package: nuget.org/packages/PdfGate.net
Installation
Install the package with the .NET CLI, the NuGet CLI, or the Package Manager Console, then initialize the client with your API key.
Create a client
The only requirement to create the client is your API key. Once initialized, the client is ready to call any of the available methods.
Generate and download a PDF
A common workflow is to generate a PDF first, then download the resulting file stream using the returned document id.
Core methods
| Method | Purpose |
|---|---|
GeneratePdfAsync | Generate a PDF from HTML or a URL. |
GetDocumentAsync | Retrieve document metadata and refreshed pre-signed URLs. |
GetFileAsync | Download the stored PDF stream for a document id. |
UploadFileAsync | Upload a PDF file for later transformations. |
FlattenPdfAsync | Flatten fillable form fields into a non-editable PDF. |
WatermarkPdfAsync | Apply text or image watermarks to a document. |
ProtectPdfAsync | Encrypt a PDF and apply restrictions such as print or copy limits. |
CompressPdfAsync | Compress a PDF and return the resulting document record. |
ExtractPdfFormDataAsync | Read field values from a fillable PDF. |
Related documentation
Use the SDK together with the main API documentation for request parameters, endpoint behavior, and workflow guides such as webhooks and PDF form fields.