# phpman > man > PDF::API2::Basic::PDF::Number

## NAME
    [PDF::API2::Basic::PDF::Number](https://www.chedong.com/phpMan.php/perldoc/PDF%3A%3AAPI2%3A%3ABasic%3A%3APDF%3A%3ANumber/markdown) - Low-level PDF numeric object

## METHODS
  $n->convert($str)
    Converts a string from PDF to internal, by doing nothing

  $n->as_pdf
    Converts a number to PDF format