Compare dois PDF usando C#

using Aspose.Words.Cloud.Sdk;

var config = new Configuration
{
    ClientId = "####-####-####-####-####",
    ClientSecret = "##################"
};
var wordsApi = new WordsApi(config);

var fileName1 = "Input1.pdf";
var fileName2 = "Input2.pdf";
var fileResult = "Output.pdf";

//  Carregar documentos para armazenamento em nuvem.
using var firstDocumentContent = File.OpenRead(fileName1);
var uploadFirstFileRequest = new UploadFileRequest(firstDocumentContent, fileName1);
await wordsApi.UploadFile(uploadFirstFileRequest);

using var secondDocumentContent = File.OpenRead(fileName2);
var uploadSecondFileRequest = new UploadFileRequest(secondDocumentContent, fileName2);
await wordsApi.UploadFile(uploadSecondFileRequest);

//  Comparar documentos na nuvem.
var compareDataOptions = new CompareData()
{
    Author = "author",
    FileReference = new FileReference(fileName2)
};
var compareDocumentRequest =
    new CompareDocumentRequest(fileName1, compareDataOptions, destFileName: fileResult);
await wordsApi.CompareDocument(compareDocumentRequest);

//  Baixe o documento de resultado do armazenamento em nuvem.
var downloadFileRequest = new DownloadFileRequest(fileResult);
var downloadFileResult = await wordsApi.DownloadFile(downloadFileRequest);
using (var fileStream = File.Create(fileResult))
{
    downloadFileResult.CopyTo(fileStream);
}