Delete Image signatures from documents Leave feedback

GroupDocs.Signature provides ImageSignature class to manipulate image signatures and delete them from the documents over Delete method.
Please be aware that Delete method modifies the same document that was passed to constructor of Signature class.

Here are the steps to delete Image signature from the document with GroupDocs.Signature:

• Create new instance of Signature class and pass source document path as a constructor parameter;
• Instantiate ImageSearchOptions object with desired properties;
• Call Search method to obtain list of ImageSignature;
• Select from list ImageSignature object(s) that should be removed from the document;
• Call Signature object Delete method and pass one or several signatures to it.

This example shows how to delete Image signature that was found using Search method.

using (Signature signature = new Signature("signed.pptx"))
{
    ImageSearchOptions options = new ImageSearchOptions();
    
    // Search for image signatures in the document
    List<ImageSignature> signatures = 
        signature.Search<ImageSignature>(options);

    if (signatures.Count > 0)
    {
        ImageSignature imageSignature = signatures[3];
        bool result = signature.Delete(imageSignature);

        if (result)
        {
            Console.WriteLine(
                $"Image signature at location {imageSignature.Left}x{imageSignature.Top} " +
                $"and size {imageSignature.Size} was deleted from document ['{fileName}']."
            );
        }
        else
        {
            Console.WriteLine(
                $"Signature was not deleted from the document! " +
                $"Signature at location {imageSignature.Left}x{imageSignature.Top} " +
                $"and size {imageSignature.Size} was not found!"
            );
        }
    }
}

To learn more about document eSign features, please refer to the advanced usage section.

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.