Converting PDF to string [closed]

Answer 1

Install APACHE-TIKA on your server. APACHE-TIKA support more then pdf files. Install guide: http://www.acquia.com/blog/use-apache-solr-search-files

and final code is easy:

$string = "";
$fd = popen("java -jar yourpathtotika/tika-app-1.3.jar -t yourpathtopdf/sample.pdf","r");
while (!feof($fd)) { 
$buffer = fgets($fd, 4096); 
$string .= $buffer;
}
echo $string;