Define and Use Custom Objects for PDF Metadata Signature
Metadata signature is a convenient way to sign documents using metadata properties. In GroupDocs.Signature for .NET 18.9, we introduced the feature of signing the PDF documents using various metadata properties including:
Author CreateDate MetadataDate CreatorTool ModifyDate Producer Entry Keywords Title Subject Description Creator You can set all or some of the above-mentioned properties while signing the documents. Since these are the built-in properties, you can only add/update their value.
Introducing Form-Field Signatures for PDF Documents in GroupDocs.Signature for Java 19.1
We are pleased to announce a major release of GroupDocs.Signature for Java containing 13 new features, 5 improvements, and 2 bug fixes. In this release, we have introduced Metadata Signature for word-processing, presentation and spreadsheet documents. Furthermore, a new signature type, Form-Field Signature, is implemented for signing PDF documents. Please have a look at the release notes for more details on the new features and changes introduced in version 19.1.