Render Word Documents to HTML using a REST API in C#

RenderWordToHTML_CSharp.md

Learn how to render Word documents to HTML using a REST API in C#: https://blog.groupdocs.cloud/2021/10/08/render-word-documents-to-html-using-a-rest-api-in-csharp/

1. Upload DOCX to the Cloud
2. Render Word to HTML Pages using C#
3. Render Word to HTML Pages with Rendering Options using C#
4. Word to HTML Rendering with Watermark using C#
5. Download rendered HTML pages

RenderWordToHTML_CSharp_Configurations.cs

string MyClientId = "112f0f38-9dae-42d5-b4fc-cc84ae644972";
string MyClientSecret = "16ad3fe0bdc39c910f57d2fd48a5d618";
string MyStorage = "";

var configuration = new Configuration(MyClientId, MyClientSecret);

RenderWordToHTML_CSharp_Download.cs

// initialize API
var fileApi = new FileApi(configuration);

// save all rendered HTML pages
foreach (var page in response.Pages)
{
    // create download file request
    var downloadFileRequest = new DownloadFileRequest(page.Path, MyStorage);

    // download file
    var file = fileApi.DownloadFile(downloadFileRequest);
    
    // save file in working directory
    using (var fileStream = System.IO.File.Create("C:\\Files\\" + page.Path))
    {
        file.Seek(0, SeekOrigin.Begin);
        file.CopyTo(fileStream);
    }
}

RenderWordToHTML_CSharp_Render.cs

// initialize API
var apiInstance = new ViewApi(configuration);

// input file path
var fileInfo = new GroupDocs.Viewer.Cloud.Sdk.Model.FileInfo();
fileInfo.FilePath = "sample.docx";

// define view options
var viewOptions = new ViewOptions();
viewOptions.FileInfo = fileInfo;
viewOptions.ViewFormat = ViewOptions.ViewFormatEnum.HTML;   // output view format

// create view request
var request = new CreateViewRequest(viewOptions);

// create view
var response = apiInstance.CreateView(request);

RenderWordToHTML_CSharp_RenderWithOptions.cs

// initialize API
var apiInstance = new ViewApi(configuration);

// input file path
var fileInfo = new GroupDocs.Viewer.Cloud.Sdk.Model.FileInfo();
fileInfo.FilePath = "sample.docx";

// define view options
var viewOptions = new ViewOptions();
viewOptions.FileInfo = fileInfo;
viewOptions.ViewFormat = ViewOptions.ViewFormatEnum.HTML;   // output view format

// define render options
viewOptions.RenderOptions = new RenderOptions
{
    // render comments
    RenderComments = true,

    // render specific range of pages
    StartPageNumber = 1,
    CountPagesToRender = 2,
};

// create view request
var request = new CreateViewRequest(viewOptions);

// create view
var response = apiInstance.CreateView(request);

RenderWordToHTML_CSharp_RenderWithWatermark.cs

// initialize API
var apiInstance = new ViewApi(configuration);

// input file path
var fileInfo = new GroupDocs.Viewer.Cloud.Sdk.Model.FileInfo();
fileInfo.FilePath = "sample.docx";

// define view options
var viewOptions = new ViewOptions();
viewOptions.FileInfo = fileInfo;
viewOptions.ViewFormat = ViewOptions.ViewFormatEnum.HTML;   // output view format

// define watermark
viewOptions.Watermark = new Watermark
{
    Text = "This is a sample watermark!",
    Size = 100,
    Color = "Red",
    Position = Watermark.PositionEnum.Diagonal
};
          
// create view request
var request = new CreateViewRequest(viewOptions);

// create view
var response = apiInstance.CreateView(request);

RenderWordToHTML_CSharp_Upload.cs

// initialize API
var apiInstance = new FileApi(configuration);

// Open file in IOStream from local/disc.
var fileStream = File.Open(@"C:\Files\Sample.docx", FileMode.Open);

// create file upload request
var request = new UploadFileRequest("sample.docx", fileStream, MyStorage);

// upload file
var response = apiInstance.UploadFile(request);