com.groupdocs.signature Leave feedback The GroupDocs.Signature namespace provides classes for signing documents of different formats with stamps, barcodes, QR-codes, text, image, metadata, form field and digital signatures. Classes Class Description Signature Represents main class that controls document signing process. SignatureSettings Defines settings for customizing Signature behavior. Was this page helpful? Not really Yes, thanks Any additional feedback you'd like to share with us? Skip Send Please tell us how we can improve this page. Skip Send Thank you for your feedback! We value your opinion. Your feedback will help us improve our documentation.