Signing archive documents in batch Leave feedback

GroupDocs.Signature supports signing archive files with formats like ZIP, TAR, 7Z the same way as usual documents. The only difference in the SignResult of the Sign method will contain for archive files the lists of Succeeded and Failed signatures as the
list of the DocumentResultSignature instances.

Here are the steps to sign the archive files like ZIP, TAR, 7z with GroupDocs.Signature:

• Create a new instance of Signature class and pass the source archive path or stream of the archive as a constructor parameter.
• Instantiate the single SignOptions object or list of this class with the required options.
• Call Sign method of  Signature class instance and pass SignOptions to it.
• The passed signature options will be applied to the all documents within the archive.
• Analyze response SignResult over the properties Succeeded and Failed signatures as the instances of the DocumentResultSignature

This example shows how to sign archive document with few SignOptions.

/// <summary>
/// Support Succeeded and Failed list as result of processing archives
/// </summary>
using (var signature = new Signature("sample.zip"))
{
    // create sign options
    var options = new TextSignOptions("signed!")
    {
        // set signature position
        Left = 100,
        Top = 100
    };
    // sign archive to new zip file
    SignResult result = signature.Sign("output.zip", options);
    // analyze signed documents
    foreach (DocumentResultSignature document in result.Succeeded)
    {
        Console.WriteLine($"Document {document.FileName}. Processed: {document.ProcessingTime}, mls");
    }
    if (signResult.Failed.Count > 0)
    {
        Console.WriteLine("\nList of failed documents:");
        number = 1;
        foreach (DocumentResultSignature document in result.Failed)
        {
            Console.WriteLine($"Document {document.FileName}. Processed: {document.ProcessingTime}, mls");
        }
    }
}

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

• GroupDocs.Signature for .NET examples, plugins, and showcase
• GroupDocs.Signature for Java examples, plugins, and showcase
• Document Signature for .NET MVC UI Example
• Document Signature for .NET App WebForms UI Example
• Document Signature for Java App Dropwizard UI Example
• Document Signature for Java Spring UI Example

Along with the full-featured .NET library, we provide simple but powerful free online apps.

To sign PDF, Word, Excel, PowerPoint, and other documents you can use the online apps from the GroupDocs.Signature App Product Family.