cpdf_setflat

Sets flatness (PHP 3 >= 3.0.8, PHP 4, PHP 5 <= 5.0.4)
bool cpdf_setflat ( int pdf_document, float value )

The cpdf_setflat() function set the flatness to a value between 0 and 100. 如果成功则返回 TRUE,失败则返回 FALSE