Option Explicit

Function Strip_Hyperlinks_Bookmarks_Fields()
    Dim myLink As Hyperlink
    Dim myBookmark As Bookmark
    Dim myField As Field
    With ActiveDocument
        For Each myLink In .Hyperlinks
            myLink.Delete
        Next myLink
        For Each myBookmark In .Bookmarks
            myBookmark.Delete
        Next myBookmark
        For Each myField In .Fields
            myField.Unlink
        Next myField
    End With
End Function

Sub Clean_Up_Document_for_Conversion()
    Call Strip_Hyperlinks_Bookmarks_Fields
    'inne funkcje oczyszczające dokument
End Sub