PHP. Руководство по PHP. 2005
cpdf_output_buffer
cpdf_output_buffer
Description
bool cpdf_output_buffer (int pdf_document)The cpdf_output_buffer() function outputs the pdf document to stdout. The document has to be created in memory which is the case if cpdf_open() has been called with no filename parameter. Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.
See also cpdf_open().
cpdf_open
cpdf_page_init