Specifies the path to the file to be attached to the document.
A String value, specifying the path to the file to be attached to the document.
The PdfAttachment.Data property also allows obtaining the attachment file's data and has priority over the FilePath property. If both properties are set to non-default values, the FilePath property is ignored.
If the FilePath and PdfAttachment.Data properties are not explicitly specified, the file will not be attached to the document.