pdflib - is there's a way to rotate the page of pdf - pdflib

Question

before rotate
this is what i generate, with A4 Page.
before
after rotate
after generate, i wanna rotate the page like this.
please help me.
after

Answer 1

Totally possible!
Have a look at the PDFLib Cookbook (great resource for learning!), more specifically the sample for rotate_pages.
Basically you import a page into a document and place it with a new orientation. That will "rotate" the page as you like.
PHP sample code from the cookbook:
/* Loop over all pages of the input document */
for ($pageno = 1; $pageno <= $endpage; $pageno++)
{
$page = $p->open_pdi_page($indoc, $pageno, "");
if ($page == 0)
throw new Exception("Error: " . $p->get_errmsg());
/* Page size may be adjusted by fit_pdi_page() */
$p->begin_page_ext(0, 0, "width=a4.width height=a4.height");
/* Place the imported page on the output page. Adjust the page size
* automatically to the size of the imported page. Orientate the
* page to the west; similarly you can orientate it to the east or
* south, if required.
*/
$p->fit_pdi_page($page, 0, 0, "adjustpage orientate=west");
$p->close_pdi_page($page);
$p->end_page_ext("");
}