VMS Help CONVERT, file, Qualifiers, /PAD  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Determines whether short records are to be padded.

    Format

      /PAD  [=[%b]x]

      /NOPAD  (DEFAULT)

    Specifies that the short records are to be padded with either
    ASCII characters (A through Z, a through z, or 0 through 9) or
    numeric values.

    To specify x as a numeric value, you must specify the numeric
    base using the percent symbol (%)  followed by one of the
    following characters:

    D    Indicates that x is a decimal number.
    O    Indicates that x is an octal number.
    X    Indicates that x is a hexadecimal number.

    The numeric value can be any number from 0 to 255.