package Ġcom . example . pdf writer . pdf . document Ċ Ċ import Ġjava . io . Closeable Ċ import Ġjava . io . OutputStream Ċ Ċ interface ĠDocument Ġ: ĠClose able Ġ{ ĊĠĠĠ Ġfun Ġadd Page (): ĠDocument Page ĊĊĠĠĠ Ġfun ĠwriteTo ( out : ĠOutputStream ) Ċ }