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Backend generates pdf files (labels, packing slips, etc) - Need to automatic print to pre-selected printers from browser - Workaround?
$file = "c:\path\to\file.pdf";
$exec = '"C:\Program Files\bioPDF\Acrobat Wrapper\acrowrap.exe" /t ';
session_write_close(); // prevents hanging
pclose(popen($exec. $file . " \networked\printer",'r'));

$file = "/path/to/file.pdf";
$command = "lpr -P /printer/path " . $file;
exec($command);