How to find the length of a pdf file on the internet

[RWAPSoftware]

I have written a small spider which checks a database of webpage addresses for validity.   It returns the length of a web-page in bytes (supposedly), but I cannot get it to return the correct length of a PDF file web address   Code is basically:       local ($PageToFetch, $httpname);       [EMAIL PROTECTED]];     [EMAIL PROTECTED]];       # Use LWP module to communicate with the web page       $ua = LWP::UserAgent->new;     $ua->agent("MyApp/0.1 ");  # Create a request       my $req = HTTP::Request->new(POST => "$PageToFetch",$ContentLen);       $Filel1=$ContentLenub->document_length;       $req->content_type('x-www-form-urlencoded');       $req->content('match=www&errors=0');  # Pass request to the user agent and get a response back     my $res = $ua->request($req);  # Check the outcome of the response       $PageCheck=0;     $CheckReason="";     if ($res->is_success)     {         # Page address is valid         $ValidName=1;         $buffer=$res->content;         $Filelen=length ($buffer);  # Store filelength - will not grab a pdf file !!     } How do I get the length of a pdf file into $Filelen ??     -- Rich Mellor RWAP Services 35 Chantry Croft, Kinsley, Pontefract, West Yorkshire, WF9 5JH TEL: 01977 610509 Visit our website at: URL:http://www.rwapsoftware.co.uk In need of adventure? URL: http://www.rwapadventures.com Stuck with ordinary dial up internet connection ?? Read our review of internet accelerators and broadband at: URL:http://www.rwapservices.co.uk