download the pdf lib file http://www.pdflib.com
coppy libpdf_php.dll to php extention folder and write these code for Hello world.
<?php
$p = PDF_new();
if (PDF_begin_document($p, “”, “”) == 0)
{die(“Error: ” . PDF_get_errmsg($p));}
PDF_set_parameter($p, “hypertextencoding”, “winansi”);
PDF_set_info($p, “Creator”, “hello.php”);
PDF_set_info($p, “Author”, “Md. Ashrafur Rahaman”);
PDF_set_info($p, “Title”, “Hello world (PHP)!”);
PDF_begin_page_ext($p, 595, 842, “”);
$font = PDF_load_font($p, “Helvetica-Bold”, “winansi”, “”);
PDF_setfont($p, $font, 24.0);
PDF_set_text_pos($p, 50, 700);
PDF_show($p, “Hello world!”);
PDF_continue_text($p, “(says PHP)”);
PDF_end_page_ext($p, “”);
PDF_end_document($p, “”);
$buf = PDF_get_buffer($p);
$len = strlen($buf);
header(“Content-type: application/pdf”);
header(“Content-Length: $len”);
header(“Content-Disposition: inline; filename=hello.pdf”);
print $buf;
PDF_delete($p);
?>