// For more examples, https://github.com/aspose-pdf-cloud/aspose-pdf-cloud-dotnet/tree/master/Examples

// Get client credentials from https://dashboard.aspose.cloud/
string clientSecret = "c71cfe618cc6c0944f8f96bdef9813ac";
string clientID = "163c02a1-fcaa-4f79-be54-33012487e783";

// create an instance of PdfApi
PdfApi pdfApi = new PdfApi(clientSecret, clientID);

// Call the API to Append pdf files
var response = pdfApi.PostAppendDocument("Input.pdf", "FileToAppend.pdf", 1,3);

// 
if (response != null && response.Status.Equals("OK"))
{
    Console.WriteLine("Operation completed successfully !");
    Console.ReadKey();
}