DigitalSignatureUtil RemoveAllSignatures method. Removes all digital signatures from source file and writes unsigned file to destination file in C#....Doc, Dot, Docx, Dotx, Docm, Odt, Ott. public static void RemoveAllSignatures...Doc, Dot, Docx, Dotx, Docm, Odt, Ott. public static void RemoveAllSignatures...