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.
There could be a situation when the built-in metadata properties may not fulfill your requirements and you may want to use your own set of properties to add metadata Signatures....is a convenient way to sign documents using metadata properties...introduced the feature of signing the PDF documents using various metadata...