Sets FDF character encoding - Справочник: PHP5.4

bool fdf_set_encoding ( resource $fdf_document , string $encoding )

Sets the character encoding for the FDF document.

fdf_document

The FDF document handle, returned by fdf_create(), fdf_open() or fdf_open_string().

encoding

The encoding name. The following values are supported: "Shift-JIS", "UHC", "GBK" and "BigFive".

An empty string resets the encoding to the default PDFDocEncoding/Unicode scheme.

Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.