PdfAnnotationKeysM FieldTerminal Works - PDF Printing.Net Library
(Optional; PDF 1.1) The date and time when the annotation was most recently modified. The preferred format is a date string, but viewer applications should be prepared to accept and display a string in any format.

Namespace: PdfEdit.Pdf.Annotations
Assembly: PdfPrintingNet (in PdfPrintingNet.dll) Version: 5.2.1.0 (5.2.1.0)
Syntax

public const string M

Field Value

Type: String
See Also

Reference