Load document from URL

Following example demonstrates how to work with documents from URL.

public static void Run()
    string url = "https://github.com/groupdocs-signature/GroupDocs.Signature-for-.NET/blob/api-v2/Examples/Resources/SampleFiles/sample.pdf?raw=true";

    using (Stream stream = GetRemoteFile(url))
        using (Signature signature = new Signature(stream))
            TextSignOptions options = new TextSignOptions("John Smith")
                Left = 100,
                Top = 100

            // sign document to file
            signature.Sign("SampleSigned", options);
    Console.WriteLine("\nSource document signed successfully.\nFile saved at " + outputFilePath);

private static Stream GetRemoteFile(string url)
    WebRequest request = WebRequest.Create(url);

    using (WebResponse response = request.GetResponse())
        return GetFileStream(response);

private static Stream GetFileStream(WebResponse response)
    MemoryStream fileStream = new MemoryStream();

    using (Stream responseStream = response.GetResponseStream())

    fileStream.Position = 0;
    return fileStream;

More resources

GitHub Examples

You may easily run the code above and see the feature in action in our GitHub examples:

Free Online App

Along with full-featured .NET library we provide simple, but powerful free Apps.

You are welcome to eSign PDF, Word, Excel, PowerPoint documents with free to use online GroupDocs Signature App.